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How to calibrate the battery on your Android phone or tablet

AndroidPIT samsung galaxy s8 fast charge 1528
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Wondering how to calibrate the battery on your Android smartphone? Looking for answers on why calibrating the battery is even necessary? Well, these are some of the questions we aim to answer with the help of this article.

Jump to:

What is battery calibration?

The Android operating system needs to keep track of your battery and charge levels so that it tells you when it is full or empty. The problem is that it sometimes becomes corrupted and starts displaying data that isn’t real, which, for example, causes the phone to turn off before it reaches 0 percent. This discrepancy in data can also be caused by aging.

All batteries degrade over time, and an older battery can no longer hold as much charge as it did when it was new. However, the software your phone runs does not usually take this degradation into account while displaying the battery status on the screen.

Calibrating your Android battery simply means getting the Android OS to correct this information, so it is reflective of your actual battery levels once again. It's important to understand that this process does not actually calibrate (or improve) the battery itself. Nor does battery calibration improve the battery life of your phone. It will only help the phone accurately display battery stats.

When should I calibrate the battery?

Smartphone connected to a power bank
Wondering if your smartphone battery needs to be calibrated?/ © NextPit

Calibrating your battery isn't something you'd do on a regular basis. As mentioned earlier, battery calibration archives only one purpose: ensuring the battery stats displayed by the phone are reflective of the actual condition of the battery. In case you aren't facing any issues with your phone showing you erroneous battery stats, chances are, you do not need to calibrate your battery. Listed below are the circumstances under which it might be a good idea to calibrate your battery.

  1. Your smartphone suddenly shuts down even after it showed there was enough charge left. 
  2. If your charging percentage remains stuck at a single point for long periods of time.
  3. Your smartphone is really old, and you suspect the battery stats shown are inaccurate. 

Before you calibrate your smartphone battery

Sometimes, it is simply easier (and better) to replace your smartphone battery than to flog an old horse and try calibrating them. This was easier to do on older smartphones that had removable batteries. On such devices, checking the battery for damage/issues was easy as turning the device off, removing the cover, and inspecting the battery.

If you do have such a phone lying around, you will need to look for bulges or leaks. In the image below, you'll see what a normal battery looks like next to a swollen one.

Three different cellphone batteries with two swollen ones
A swollen battery is easy to spot / © NextPit

On most modern smartphones, removing the back cover isn't an option, and there is no way to take a peek at the physical condition of the battery. However, one method of identifying a damaged battery on smartphones with non-removable batteries is to check if it doesn't sit flat on the table anymore - a situation that can often arise due to a swollen battery. 

Additionally, calibrating the battery is not an all-weather fix to any battery-related issue.

This is because there are plenty of other things that can cause a battery to malfunction. If your phone doesn't charge, there might be a problem with the port, so check our guide on what to do when a phone won't charge.

In case you recently updated your phone to new software, and the battery-related issues have manifested right after, chances are it is caused by the new firmware and not the battery itself. In such a scenario, it is better for you to simply wait for the brand to issue a fix.

How to calibrate the battery on Android smartphones?

Cellphone screen indicating a low battery charge
These steps should help you calibrate the battery on any Android smartphone / © shutterstock.com

The process mentioned below is applicable to all Android smartphones. In case you own a Samsung device, click here.

  • Discharge your phone fully until it turns itself off.
  • Turn it on again and let it turn itself off.
  • Plug your phone into a charger and, without turning it on, let it charge until the on-screen or LED indicator says 100 percent.
  • Unplug your charger.
  • Turn your phone on. It's likely that the battery indicator won't say 100 percent, so plug the charger back in (leave your phone on) and continue charging until it says 100 percent on-screen as well.
  • Unplug your phone and restart it. If it doesn't say 100 percent, plug the charger back in until it says 100 percent on screen.
  • Repeat this cycle until it says 100 percent (or as close as you think it's going to get) when you start it up without it being plugged in.
  • Now, let your battery discharge all the way down to 0 percent and let your phone turn off again.
  • Fully charge the battery one more time without interruption and you should have reset the Android system's battery percentage.

How to calibrate the battery on Samsung smartphones?

Samsung smartphones come with an option called 'Quick Reset' that is usually accessed by the technicians to calibrate phones that report inaccurate battery stats. Here's how you can use this option to calibrate the battery on Samsung devices.

  • Use the smartphone until it reaches 5%, and make sure your phone isn't connected to the charger.
  • Open the phone dialer app and enter the following code: *#0228#.
  • A pop-up menu appears with an option that says Quick Start.
  • Press Quick Start and then press OK.
  • Wait for the display to power back on again and check if the battery percentage has gone down.
  • Charge the phone to 100% again.
  • Power the phone off and then turn it on again and then unplug the charger.
  • Repeat these steps 2, 3 times
  • Plug the charger in again and the battery at 100%, turn the phone on again and open the dialer, and type: *#9900#.
  • Scroll down to batterystats.bin reset and tap.
  • Exit the menu and restart the phone.

Remember that it is not recommended to perform this process regularly. Even when your battery is so dead your phone won't even turn on, your battery still has enough reserve charge to avoid system damage. But you don't want to poke the tiger with a stick. Perform this process once every three months at the most. If it is required more often than that, you have bigger problems at hand.

Put plainly: fully discharging a battery is bad for it. Trying to overload a battery is also bad for it. The good news is that charging batteries will shut off automatically when they've reached their safe limit and there's always a little in reserve even if your phone won't start. Again: only do this when really necessary, because it does have a negative impact on battery life.

Also read

That's it. Have you tried any of these methods to calibrate your battery? Do you know an alternate way to fix battery problems? Let us know in the comments.


This article was last updated in June 2021. Older comments have been retained.

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Go to comment (143)
Rahul Srinivas

Rahul Srinivas
Senior Editor

Among the most experienced tech journalists from India, Rahul has spent the better part of the past decade writing and experiencing technology. In his decade-long career, Rahul has contributed to several Indian and International publications, including Mobilegeeks, Onlygizmos, iPhoneHacks, and The Inquisitr. Before joining NextPit, he held the position of Senior Editor at MySmartPrice - one of India's largest product research platforms.

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  • 1
    Javed Khan 5 months ago Link to comment

    Its work for my note 10 plus
    Thank you soo much
    Good article


  • 1
    Gina G Jan 9, 2023 Link to comment

    Nothing comes up when I type in the code, I have a Samsung Galaxy. This process is just too confusing, why not just go back to removable batteries???


  • Osama ali 1
    Osama ali Oct 13, 2022 Link to comment

    i have changed my huawei p10 lite battery recently, when i start charging for the first time, charging was going on normally till 70% ,it took 90 minutes to reach 70% then, it starts jump from 70% to 75% then to 80% and it within a minute its reached to 100%. i think it's fake charging, and this is the second time it's happening, i had this issue with my previous battery as well, when i was charging that battery for the first time, please anyone can help? Thanks


  • Osama ali 1
    Osama ali Oct 13, 2022 Link to comment

    help needed


  • 1
    Sean F. May 14, 2022 Link to comment

    When I typed the code into the dialpad the phone restarted and went from 5% to 68%


    • 1
      Gina G Jan 9, 2023 Link to comment

      Nothing comes up when I type in the code, I have a Samsung Galaxy.


  • Souka 1
    Souka Sep 3, 2021 Link to comment

    Some said that you shouldn't charge it straight to 100% rather you should charge it multiple times till it reach 100% like plugging it out when it gets too hot or when it charges up 30% amount


  • 1
    Melionix Aug 8, 2021 Link to comment

    ,,Plug the career in again"
    Plug the what now?


  • 1
    Telcean Marius Feb 17, 2021 Link to comment

    Thank you, thank you and thank you! I searched in the past about methods to calibrate my S9's battery but none solved the issue. This one (root method) did. In my case it worked because I took good care of my phone from the very beginning - I used to charge it (35-80%), - and about 2 years later a calibration was required.


  • 1
    sony Jan 21, 2021 Link to comment

    I've tried no.1 but my phone still keeps draining to 50% really fast, then shuts down saying it's low on juice


  • 1
    Apps Pures Nov 15, 2020 Link to comment

    Nice


  • marco sarli 39
    marco sarli
    • Admin
    Sep 8, 2020 Link to comment

    Interesting and educational but the real solution would be to have removable batteries again.

    Sorin


  • 1
    Tahseen Jul 13, 2020 Link to comment

    I had the same issue with my huawei p7... Tried everything... Changed new battery... Problems solved for a day or two and then reappeared...

    Then shown again to a technician... He pushed the battery terminal and the phone worked fine for few hours and then started again...

    He said again new battery to replaced... I told him battery is brand new... Just Keep the terminal pushed and hold with thumb and the phone was working fine... Then he told me that there is a problem with the battery cables terminal sits on the board... And he inserted some packing of double tape... Now the phone working excellent for few hours... Let's see if it remains good InshaAllah for future...


  • 1
    xkip Jun 6, 2020 Link to comment

    The sentence about "app ask for a disturbingly extensive list of device permissions" does not make any sense here. This should not worry root users. Root provides way more access than android permissions, so the app becomes a God even if there is no android permissions been asked at all.


  • 3
    vibehemoth Oct 20, 2019 Link to comment

    Very useful! Thank you


    • 3
      Uptofast Mar 9, 2020 Link to comment

      The article is great and helpful I have adapted it on my device


  • 2
    https://apkspin.com Sep 19, 2019 Link to comment

    Very Nice Info and method 1 works


  • Siamak 1
    Siamak Jun 23, 2019 Link to comment

    On HTC One M8, you could reset battery stats by connecting your phone to the charger, leave it charge for two minutes, then push and hold the 3 hard buttons on the phone for 2 minutes and the battery stats would be reset (according to HTC official support. What is the procedure for an HTC 10?


    • Ted 1
      Ted Jul 29, 2019 Link to comment

      I have an HTC 10 & method 1 works.


  • slightee_1980 1
    slightee_1980 May 1, 2019 Link to comment

    Thanks for your instructions. In method 1 for battery calibration, in the final step. Should i turn the phone on to charge it fully or off? Thanks.


    • Ted 1
      Ted Jul 29, 2019 Link to comment

      Off


    • 1
      apk adda Aug 24, 2019 Link to comment

      off


  • 2
    vilin13 Mar 25, 2019 Link to comment

    ok to help some of you out I have tried all other ways to reset the battery but only one has worked for me I have a Galaxy S6 im running a custom software and im rooted so maybe it only works on that type of set up but i charged the phone to 100% and reboot until the battery stays at 100% when you turn it on then i reboot a few times just to make sure its fully charged the if your rooted do a fast reboot until the batterybis 100% ,next you must go to the dailer and type in (*#0228#) and it will go to the battery setup dont do this part until your sure the battery is at 100% cuz it wont work unless uts 100% do the reset test like 2 or 3 time just to get it to callibrate it will now show you your real % somewere around 50 or 60 % for wost phones dont let the phone discharge you must charge to full 100% and phone must say full not just 100% and repeat the prosses till when you reset the battery with the *#0228 it stays at 100 % and then the battery will be fully charged .a side note dont discharge your phone all the way ever it corupts the battery senser,the phone doesnt need to be discharged to do the reset it just needs to be fully charged at 100% and say full best if done with charger attached so as to not discharge in the prossess.Hooe this helps some of you out.as for why the phone says media divise dissconected 8t is the phones romming that is being dissconected over and over again untill you loose all power sense your phone isnt really charged all the way .put your phone in airplain mode to see if that stops the dissconnecting problem if it does then you know that its a app that has to do with service .

    Sorindane


    • 1
      dane Apr 14, 2020 Link to comment

      imao sam veliki problem baterijom a ovo sta ste napisali je pomoglo..mislim da je to jedini naičin da se nesto napravi,bio sam samo jedan korak do bacanja telefona u smeče..zahvaljujem:)


    • 1
      Melionix Aug 8, 2021 Link to comment

      You expect people to read that?


  • 2
    Religion Kills Nov 17, 2018 Link to comment

    This app wants me sign up, get through my firewall, get a bunch of permissions AND SHARE RESOURCES. You are NUTS!!!


    • 1
      marshcast Mar 27, 2019 Link to comment

      -- F-Droid is your friend - go to fdroid site (repository) and search for battery callibration. All open source, warnings if anything uses proprietary code / libraries / resources, and community watches for permissions and what's ACTUALY done with them.


  • 3
    friendly1_uk@hotmail.com Nov 14, 2018 Link to comment

    I don't follow this. The article talks of two different acts. Disconnecting the charger, and disconnecting the phone. For some time I wondered if the phone was looking for the inactive charger as a trigger. I think reading between the lines, it's just written a little awkwardly.

    I am a muppet. I need muppet proof instruction.

    Uc Beverlywitampanstwa_


    • 3
      friendly1_uk@hotmail.com Nov 14, 2018 Link to comment

      I'm back.. Sorry to of not added anything useful before. I was at a loss. Now I understand, it's interesting to see how literal I expected the instruction to be.

      For others phased out by this procedure, I will put it into a local direlect.

      You flatten it completely. Then try switching it on again, to flatten it a bit more. Just let it turn itself off. Next, without switching it on, you charge it right up. Then stop charging and switch the phone on. If it says it's full still, then flatten it again, then charge it again without switching the power. Done. Hopefully. You can walk away. However, if it didn't say full when you switched it on...

      Charge the phone to full. Then stop charging and reboot the phone. If it says less than full, Then start this chapter again. If your repeating this chapter, the battery will be a bit closer to full following each reboot. Once it manages to reboot and say it's full still (or you decide it's not going to) Than as per the first chapter. "Flatten it again, then charge it again without switching on. Done"


      Thank you for showing me this. I'm about 4th time round, and have gone from 59% to 64% using a phone left flat for months. As I charge past 69% I'm seeing 4.345V (using *#0228#) which is very close to the 4.38V I would personally bottle out at. Passing 75% it's still at 4.345V and did waver Higher to 4.352V passing 73%. Edit: Passing 85% now, the Voltage had table topped.

      I discharged mine recording video. I know batteries moan about camera's and filming keeps the screen on. I also put on the WiFi, Bluetooth and GPS, but the screen and camera were the most power hungry. I forgot the torch.


      • 3
        friendly1_uk@hotmail.com Nov 15, 2018 Link to comment

        I failed. I went round and round, but it wouldn't budge far from the 65% I had before I started. So I let it discharge till it switched off, then charged it again, expecting it to see this as it's full 100% of capacity. No. It's 65% still. It's not believed this is my full capacity. I must of charged it from around 65% to full a dozen times. It still won't reboot with more than 70% showing. Then tells me I'm about an hour from full when I plug in.

        You Spent a Second Reading This


      • 1
        You Spent a Second Reading This Feb 3, 2019 Link to comment

        You are highly unlikely to reach full capacity. It's just wasting time. The batterystats.bin is the only method I've found that works, having flashed so many custom roms till date. A lot all of them do need calibration after flashing, especially when you have mounted and erased everything in the recovery. Reach full charge as usual while the phone is in the OS, delete the file, and you're good.


    • 2
      Religion Kills Nov 17, 2018 Link to comment

      Just UNINSTALL!


  • Ilya Byk 1
    Ilya Byk Oct 12, 2018 Link to comment

    How do I kill the battery fast so I can start from scratch??


  • 2
    PurrtyLilKBear May 20, 2018 Link to comment

    Sorry - I am new at this ..
    I was wondering what did you mean by "Repeat this cycle until it says 100 percent (or as close as you think it's going to get) when you start it up without being plugged in."?
    I am going through it right now. Please help?
    Thank you!!

    friendly1_uk@hotmail.com


  • 1
    Malkovich? Feb 11, 2018 Link to comment

    I'd first like to express my appreciation for this guide, thank you, but am I missing something here?

    It sure looks like the process given for Non-Rooted & Rooted phones (or Method 1 & 2) are exactly the same. The *only* difference is that those who use Method 2 have an additional two steps instructing them to install and run the "Battery Calibration" app.

    Furthermore, can someone please tell me why this app needs so many permissions (see bottom of comment)? The Privacy Policy the developer provides in the Google Play store link above is scant, a little over 1 page, and doesn't even begin to try to explain the necessity of the listed permissions.

    Here are both Methods side by side with Method 2 obviously shown in the parentheses:
    Method 1
    (Method 2)

    Discharge your phone fully until it turns itself off.
    (Discharge your phone fully until it turns itself off.)

    Turn it on again and let it turn itself off.
    (Turn it on and let it turn off again.)

    Plug your phone into a charger and, without turning it on, let it charge until the on-screen or LED indicator says 100 percent.
    (Plug your phone into a charger and, without turning it on, let it charge until the on-screen or LED indicator says 100 percent.)

    Unplug your charger.
    (Unplug your charger.)

    Turn your phone on. It's likely that the battery indicator won't say 100 percent, so plug the charger back in (leave your phone on) and continue charging until it says 100 percent on-screen as well.
    (Turn your phone on. It's likely that the battery indicator won't say 100 percent, so plug the charger back in (leave your phone on) and continue charging until it says 100 percent on the screen as well.)

    Unplug your phone and restart it. If it doesn't say 100 percent, plug the charger back in until it says 100 percent on screen.
    (Unplug your phone and restart it. If it doesn't say 100 percent, plug the charger back in until it says 100 percent on screen.)

    Repeat this cycle until it says 100 percent (or as close as you think it's going to get) when you start it up without it being plugged in.
    (You want to repeat this cycle until it says 100 percent (or as close as you think it's going to get) when you start it up without it being plugged in.)

    **
    EXTRA STEPS ???
    (Now, install the Battery Calibration app, and before you launch it, make sure your battery is at 100 percent again, then restart.)

    (Immediately launch the app and recalibrate your battery.)
    **

    Now, let your battery discharge all the way down to 0 percent and let your phone turn off again.
    (Once you've calibrated your battery, discharge it all the way down to 0 percent and let your phone turn off again.)

    Fully charge the battery one more time without interruption and you should have reset the Android system's battery percentage.
    (Fully charge the battery one more time without interruption while it's switched off, and the Android system's battery percentage will be reset.)

    ***
    [Battery Calibration App Permissions] Version 2.5.3 can access:
    In-app purchases
    Device & app history
    -retrieve running apps
    Location
    -approximate location (network-based)
    Phone
    -read phone status and identity
    Photos/Media/Files
    -read the contents of your USB storage
    -modify or delete the contents of your USB storage
    Storage
    -read the contents of your USB storage
    -modify or delete the contents of your USB storage
    Wi-Fi connection information
    -view Wi-Fi connections
    Device ID & call information
    -read phone status and identity
    Other
    -update component usage statistics
    -receive data from Internet
    -view network connections
    -change network connectivity
    -full network access
    -run at startup
    -control vibration
    -prevent device from sleeping
    -modify system settings


  • Albin Foro 30
    Albin Foro Jan 8, 2018 Link to comment

    As said in the article, simply wiping the cache partition (using the old hardware power/volume shutdown and Android menu) may reset the battery gauge, regardless of a major OS upgrade. If that works, it's much quicker and easier, and can be done safely any time.

    I've gotten curious about the scientific proofs that charging to 80% and draining to 40% will nearly double the number of recharge cycles. If true, it really means that 100% cuts the number of potential cycles in half and that fully charging it up is actually damaging to the battery over time. Therefore, OEMs are murdering our devices by systematically overcharging them, both to make them work harder and have us replace them sooner. Apparently some apps help users achieve the optimum of scientific battery health and 80/40 rule long life. Just wondering what it does to effective Tesla mlleage claims as well as battery hours claims of smartphones - if the trade off for a full charge is a $5000 car battery or $1000 phone that needs replacing twice as soon.

    Update: Thanks for the informative comment below. I see my new Lenovo tablet has a Li-po battery but my aging ZTE phone and an older tablet have Li-ion, so the 80-40 rule may be obsolete. Have to say, never following the rule doesn't seem to have hurt the old ZTE.


    • WEO KXT 4
      WEO KXT Apr 5, 2018 Link to comment

      1st off, your "under 40% or over 80%" rule only holds true roughly for lithium ion, not lithium polymer batteries (so laptops, power tools, 18650 battery cells, but not flat batteries like in your phone.) Other battery types have different limits to what is damaging or not. The cell phone manufacturers are aware of the limits of the lithium polymer batteries they use, and rarely make mistakes (Like the Samsung Note) in what is considered 0% (let's just say where the battery is actually at 30% voltage,) and 100% (let's just say 90% for the sake of giving it a number.) So when you see 100%, it doesn't mean it's overcharged at all, or damaging the battery. I'm not even sure how much can be calibrated versus being set by the manufacturer in the firmware. Even if you install aftermarket firmware on a rooted device with an unlocked bootloader, it still will have a unique way of calibrating the battery as far as I know, for that specific device, hence one of the reasons there is different firmware written for each model, even if almost identical. (Like the s8 vs. s8+ u models.)


  • 1
    Budi Santoso Dec 18, 2017 Link to comment

    Google now detect rooted device and rooted device bad for banking app and make our data vulnerable, i used too rooting before but now i'm get over it. All smartphone maker All brand will never give their customer smartphone full management access. So get used to 60-70% performance, far from max technology can do.

    And all brand now just thinking to make money from their Chip, Memory and Camera. So don't be surprise if development on Screen Technology, Battery Technology and model "IS" in turtle mode.

    I miss Steve Job (R.I.P), He definitely make a breakthrough with this slow phase development. Hope someone will push the boundary and make a significant breakthrough so we can have more advance development in smartphone.

    For now just enjoy what we have.......Peace.


    • WEO KXT 4
      WEO KXT Apr 5, 2018 Link to comment

      Having a rooted device doesn't make your data vulnerable, but you can install software on it when it's rooted that can. Yes they do let users set the performance as high as possible on most phones I'm aware of, to the extent it doesn't damage the phone. That's why the high end phones come with different "power options" like "max performance" or "power saving". For rooted devices you can even overclock your processor or RAM. I'm not sure what paranoid delusions you're writing that comment based upon, but I assure you that you're wrong. Why would Samsung lock you out of a higher performance mode, so you'll enjoy the LG model instead of their product? Or did you forget there are many companies that make phones and they compete.... not by downgrading their product I'm sure.

      By the way, Steve Job died earlier than he should've because he didn't believe in science, and thought a "homeopathic remedy for cancer" would work. I'll agree he had some good inventions, but nothing that another company didn't make better for cheaper. The worst part of Steve Jobs is the "organic food" eating computer/science illiterate crowd that buys their products to compensate for their computer illiteracy, thinking more $ means easier to use, or somehow less vulnerable to "viruses".

      SchiffsratteStewart Daniels


      • Stewart Daniels 3
        Stewart Daniels May 17, 2018 Link to comment

        @WEO KX

        I love your comment!!! I enjoy Android phones for the ability to roll up your sleeves (Rooting) and repair any inherent flaws one may find in performance or asthetics, thustly extending it's shelf life far beyond the planned obsolescence (By locking out Root privileges) by the manufacturer dictates (Two years?).

        i.e. My Galaxy Tab 3 running Nougat 7.1.2 and running it flawlessly. Not a fan of Oreo or the upcoming P.

        Security wise, if you visit stupid websites, download apps from stupid places, open stupid emails, and connect to insecure Wifi because you think it's cute, ect...you deserve to be innudated with every virus known to man. Root is not a factor in stupid decisions.

        Funnier still are those who have not the minimum of interest in knowing exactly how the device that holds their personal data actually operates...as long as the phone 'Just Works'.

        Cheers!


  • Mavaddat J. 1
    Mavaddat J. Oct 17, 2017 Link to comment

    I tried following the guide superficially, had to come back to follow it more closely and faithfully. In the end, this procedure worked for me (I used method 2) and my battery is working well again on my 2+ year old Nexus 6P. Thanks for the write-up!


  • Nick Korokis 1
    Nick Korokis Aug 5, 2017 Link to comment

    All android smartphones have the same problem with baterry's life and there is no solution at all. Just buy an iphone... ;-)


    • Antonio Pegorelli 1
      Antonio Pegorelli Oct 11, 2017 Link to comment

      My mom's iPhone had the same problem 3 months ago. The battery was dropping from 60% to 30% in minutes on idle and the phone was turning off at 20%. She took to the apple store and the Genius guy solution was: "buy a new iphone". It's current battery technology's problem and can happen with every gadget that uses it. The best way to postpone this in our battery powered gadgets is to avoid: plugging the charger every time, getting below 40% and charging over night.


    • 1
      Matt Stoneham Oct 27, 2017 Link to comment

      I recently updated my Oneplus One to Lineage (android 7.1.2 I believe) and, right now, after 14 hours on battery and normal usage I still have 69% left.

      Seems alright to me, especially given it's 2.5 years old, used every day and running the original battery.

      Could have gone and dropped somewhere north of £600 for an iPhone I suppose (or a high-end Android for that matter) but for a couple of hours effort I've basically got a 'new' phone experience for free.


    • 1
      Ultimecia714 Mar 30, 2018 Link to comment

      i don't think so....my android phone is around 4 yrs with me now and still has good battery....sometimes it depends on the owner/user


    • WEO KXT 4
      WEO KXT Apr 5, 2018 Link to comment

      ----->


    • WEO KXT 4
      WEO KXT Apr 5, 2018 Link to comment

      Not sure how spending more money for the same thing makes you feel better about your phone or yourself. But if you can't spell battery, I suppose there's not much to argue with. I'll gladly spend 3/4 the price for the same hardware or better. With substantially better software. If my s8+ can last 1 week on power saving mode, and 2 days on maximum power, and it's big enough I can hit the on-screen keyboard buttons without being a 3 foot tall midget with microscopic hands, then I'll stick with what I have.

      BreezeStewart Daniels


      • Marko Džunja 2
        Marko Džunja Apr 5, 2018 Link to comment

        He actually had 0 inventions. He used things that other people invented and combined them. There is an extensive video on YT where hosts challenged people to name ONE invention that Apple had. Everything named already existed.

        Stewart Daniels


      • WEO KXT 4
        WEO KXT Apr 5, 2018 Link to comment

        Very good point! I still find it funny how Apple actually has customers and still exists. But the social brainwashing of potential customers through Apple product owners own manipulation still gets them business, and still gives their followers an argument against Android users. Same argument as organic foods though: I pay more so it must be better. They pay more so they think the product must be easier to use, or less vulnerable to a virus. What a weird world we live in. Generations ago these idiots couldn't survive without a logically thinking community to support them. Now there is no natural selection.

        SchiffsratteStewart Daniels


      • 1
        Ольга Струнова Oct 20, 2018 Link to comment

        They still have customers and earn bunch of money on overpriced crap simply thanks to humans' vanity and desire to be socially recognised. Because in talking monkeys' society bitten-off apple is a symbol of wealth and status, even if the good share of customers of this shit literally have to save the last peanut to buy it.


      • 2
        Religion Kills Nov 17, 2018 Link to comment

        100 % RIGHT YOU ARE!!!


      • 2
        Religion Kills Nov 17, 2018 Link to comment

        Evolution has failed, not anymore the survival of the fittest. Steve Jobs was a greedy asshole. Never gave a penny to the poor. When he came back to run the rotten Apple, he stopped all donation. FIH - fry in hell!


    • Stewart Daniels 3
      Stewart Daniels May 17, 2018 Link to comment

      "All android smartphones have the same problem with baterry's life and there is no solution at all. Just buy an iphone..."

      iPhones do the same until you start disabling features. if it hasn't happened yet, it will.

      The beauty of Android is you can fix any problems yourself. 0.1-0.3% drain per hour...on all my Android devices.

      Plus, I love a dedicated 'Back' button. I'm funny that way.


    • Shane Smith 3
      Shane Smith Sep 15, 2018 Link to comment

      I phones are way worse. They lose 20 percent capacity a year average Samsungs says they retain 98percent capacity In 2 years.


  • 1
    88BlueKeys4U Jul 28, 2017 Link to comment

    Most 'calibration' apps allow for enforcing a 100% mark at any given charge voltage. Which makes sense, if the phone does not reach 100% by itself, while the battery is hovering at a maximum voltage below the expected one (4.15V or so), e.g. when getting worn/older.
    But what to do if the percentage counter drops to 1% while the battery is still at a strong 3.74V level, far off the critical 3,5V vor Li batteries? How can I FORCE the system to stay up anyway?

    How can I adjust the VOLTAGE/PERCENTAGE relationship in Android? Apparently the system TRIES to be smart and shifts this relationship over time and after each charge cycle. But it makes HUGE errors and does not allow for a full usage of my 5000mAh battery this way.
    I know of a guy who owns the SAME device (Voyo Q101 4G) and saw his tablet's battery drop below 3V without shutting down. Mine does the opposite: it will not allow me to use it at ranges below 3.70V, no matter how much is left.

    Android revision changed so often over the years, yet they still have not learned to read battery voltage curves reliably???


    • WEO KXT 4
      WEO KXT Apr 5, 2018 Link to comment

      Well of course they "allow" for "enforcing a 100% mark" at any given charge since each manufacturer sets the 100% mark for their firmware and unless rooted, calibration software not only won't do anything that I'm aware of, but it can't since it won't have permissions to do so. (Other than draining the battery faster if that's what you're trying to do.) Not sure what the rest of your rant is about.

      Stewart Daniels


    • Tamer Mohamed 1
      Tamer Mohamed Sep 13, 2018 Link to comment

      i think using the battery down to 3v will affect its life time


  • Megan Whitmore 1
    Megan Whitmore Feb 14, 2017 Link to comment

    When I try to drain the battery on my Motorola G it eventually gets to the point where, whenever I turn it on, it shuts off immediately afterwards. The problem with this is that it never truly gets to 0%; when I move onto the next step--plug you phone in until it is at 100%--it starts off at 40% not 0%. I was wondering if anyone else was having a similar problem with their device, and if they had found a solution or if the solution in the above article works even when the battery never gets to 0%. I'm also having issues with the flashlight widget and was wondering if they were related, because they both started to occur on the same day. Every time I click the widget the light flashes for half a second and then turns off, while the widget still indicates it is on.


  • Jacob Jose 1
    Jacob Jose Feb 12, 2017 Link to comment

    You mean most of the time the phone will show 100% after starting.


  • Eugenios Alexander 2
    Eugenios Alexander Jan 25, 2017 Link to comment

    I did the method 2 on a new genuine Samsung battery for my Note II. I have the battery for 2 months and for the past three days, in the morning the battery went from 30% to 0% the first day, from 50% to 0% the second day (on which I did a complete factory reset), and from 75% to 0% the third day. When trying to discharge the battery it took about 2 more hours after reaching 3%. It was working for 2 hours on 3%. I found that kind of weird but I guess that is why it needed to be calibrated. If this method works I will tell you tomorrow.

    Update:
    The procedure worked! The battery does not drop to 0% anymore. I did however find that the Android OS was eating up 61% of my battery. It seems that the phone is working okay again. Will be checking the battery every morning. Thanks for the help!


  • 血と影 1
    血と影 Dec 17, 2016 Link to comment

    I tried doing this without root access method, but I don't know what to do since not matter how long I charge, it won't show the 100% charge sign and perpetually stays at 0%... I also tried leaving it charging completely turned off for 5 hours, and I turned it on but it still said 0% even after leaving it charged on for another 3 hours.


    • 1
      Matt Stoneham Oct 27, 2017 Link to comment

      You tried a different charger?

      As the article points out, re-calibration isn't going to help if the issue is a dead battery. Many handsets have easily replaceable batteries. I've just replaced one in my wife's Nexus 4, took 10 minutes and cost under a fiver.


  • Nithesh Aravind 1
    Nithesh Aravind Oct 7, 2016 Link to comment

    will calibration happens automatically if i factory reset the device or it stays with the same problem


  • N JK (Nik) 1
    N JK (Nik) Sep 12, 2016 Link to comment

    My Nexus 5 did that once....i swear to god it charged it self a bit all by itself. My dad says some gadgets will do that when u leave them alone. Only happened once tho... seems like magic..lol


  • Tracy Hannon 2
    Tracy Hannon Sep 8, 2016 Link to comment

    So I have an extra battery and charger. I use my phone until it turns off, then swap batteries with the fully charged one. Am I doing more harm than good this way? I like it because I'm never tethered to a cord, and I never have a dead phone!


    • Bjoern Buth 1
      Bjoern Buth Sep 2, 2017 Link to comment

      Hi Tracy, it's ok but if you want to be nice to your batteries it's better not discharge it completely. So I would recommend switching batteries when the battery level drops below 15 percent. Just don't discharge the batteries completely because that will descrease the overall battery life (I mean the overall life, not long it will keep your phone running with one charge).


  • Jude Pasqual 1
    Jude Pasqual Sep 3, 2016 Link to comment

    When you say, 'let your phone discharge down to 0', does this mean using the phone to assist in the battery going down? Or do I just leave it until it goes down to 0 (if I leave it, that will be a long time, since the battery meter sometimes goes up even without charging)?


  • Mike Stump 1
    Mike Stump Aug 5, 2016 Link to comment

    You state in your myth section that deleting batterystats.bin doesn't magically calibrate your battery. However, guess what the app in your method 2 does?


    • Martin Obregon 1
      Martin Obregon Aug 18, 2016 Link to comment

      They said that they still believe that clearing the batterystats.bin doesn't help, but would include method 2 just to be fair. That's why they added method 2. Just in case someone was interested in clearing the batterystats.bin using the app.


  • Billy Osborne 1
    Billy Osborne Jul 24, 2016 Link to comment

    Hey kayshot Kshatriya. Be appreciative that you got an answer at least instead of acting like a douchebag.


  • 1
    Kai-M.Lüdeke Jul 24, 2016 Link to comment

    My tablet PC charges up 4.15V and shuts down at 3.6V. Is it possible to change the shutdown voltage ? I would like to reduce it to 3.5 or 3.4V.


    • Tamer Mohamed 1
      Tamer Mohamed Sep 13, 2018 Link to comment

      it might affect battery life


  • 1
    Kai-M.Lüdeke Jul 11, 2016 Link to comment

    I have applied method 1 to a Medion/Lenovo LIFETAB S10346 Tablet PC with a bad battery. The first discharge cycle (step 1) took about 80 minutes at the brightest display setting. The second discharge cycle (step 8) took about 60 minutes. So things actually got worse.


  • Kenneth_Mc 150 1
    Kenneth_Mc 150 Jun 20, 2016 Link to comment

    I have an LG G3 and i was browsing through my phone in the middle of the day, and my battery was around 55-60%, and the phone shut off and restarted and when it rebooted, the battery indicator displayed that i had 15% remaining on the battery.


    • 2
      Chen Ming Liang Jun 25, 2016 Link to comment

      My old moto defy and atrix 2 do the same but they don't reboot. Battery level can suddenly drop to 15% (low battery state). Guess I'll have to calibrate them soon. They've been this way for too long without being corrected.


  • Bram 1
    Bram Jun 8, 2016 Link to comment

    My oneplus one doesnt charge properly. It only charges when i'm not using it or when it's powered off. Sometimes when i want to check it while charging it stops charging. The indicator however always shows the phone is charging, but the battery is draining. I completely don't know what i have to do, i already tried recalibrating the battery but nothing changed. Help please?


    • 1
      Simon Chester Jun 17, 2016 Link to comment

      Sounds more like it's a problem with the charger - your phone isn't getting enough current from it to run the hardware and charge the battery at the same time. If you're using the supplied charger and cable, I'd contact OnePlus for support. If you're using a different charger or cable, well there's your problem.


  • 1
    Kristen Klein Jun 5, 2016 Link to comment

    My wife's Galaxy S4 is having power problems. We can put her battery in my son's S4 and it works relatively well so I don't believe it's the battery. In trying to do this calibration her phone will get to a state where it just continually reboots (I assume that the phone calculates that the battery is dead) and the only way for her to stop that is to remove the battery. How should we try to do this calibration?


    • Jakub Kaminski 1
      Jakub Kaminski Jun 27, 2016 Link to comment

      I had a similar problem with my s2. kept vibrating and shutting off. no charging, no loading, i thought it was a dead battery or a dead phone. did a bit of research and found some info about the power button getting stuck. didnt look stuck or anything, but i took the phone appart, forced the internal power button out with a pin (be gentil) and cleaned out the plastic button on the outer case. solved that problem. now i'm just battling with battery discharging. looks like some app or firmware problems. different topic though. good luck :D


    • Breeze 1
      Breeze Nov 5, 2019 Link to comment

      My Alcatel Fierce XL did the same thing after a software update. It kept restarting itself over & over. I finally read something about it being stuck in a "Boot Loop" (don't know if I spelled that correctly; prob not.). I read that the new update to the system plus all my apps were too much for the memory of the phone, or something to that effect. I ended up having to get a new phone.


  • 1
    Joe Jun 4, 2016 Link to comment

    Hi,

    My tablet charges okay and runs a reasonable time on battery.

    However recently, the battery indicator always shows 100%. When it runs out of charge, it just abrumptly turns off, no warnings, no graceful shutdown.

    Anyone seen this before? I try the manual recal, but it doesn't help, perhaps due to the lack of graceful shutdown (it doesn't realize the moment when it's reached minimum charge).


  • 1
    Michael Greenbag Apr 19, 2016 Link to comment

    I just went through this by accident. I have a Samsung GS3, where the battery was replaced less than a year ago. The last few weeks, the battery won't last more than 4 hours.. on standby. I've checked that there was no bulge like the last battery, and it didn't spin on a flat surface. It drained on it's own one day, then I charged it while it was powered off. A few hours later, the green light suggests it's fully charged. Turn the phone on, but it's less than 50% charged. Recharge again with the phone on, then powered off and connected the charger once again.. only about 80% charge. I once again let it charge with the phone powered off. After this last charge.. it's fully charged. All in all it took close to 12 hours, but now the indicator slowly decreases.. not 20% in only a few minutes. I just hope it stays like this.. I don't want to buy a new phone just because I need a new battery. Unfortunately, there's no GS3 batteries to be found anymore.


    • Hasnain Khattak 1
      Hasnain Khattak Apr 26, 2016 Link to comment

      You can get Samsung Galaxy S3 OEM Battery from Ebay


    • WEO KXT 4
      WEO KXT Apr 5, 2018 Link to comment

      They're like $5 on eBay, what are you talking about?


  • Salman Khan 1
    Salman Khan Apr 9, 2016 Link to comment

    I have a Motorola DROID2 global .one day i have remove its battery and connect battery to 9volt ac adapter to charge it afterwards put the battery into phone now battery bar have a question mark.
    My question is what file i remove to fix this or any other method you suggest me.
    Thanks please.


    • 1
      Momom May 27, 2016 Link to comment

      You simply damaged your battery control pcb! Never apply more than 5.5 volt


  • 2
    Ramsha khalil Apr 1, 2016 Link to comment

    My tab never dies n it keeps operating on 1% n also it charges n discharges in 1hr
    N another thing is that it charges even when its not plugged in like in the night if i leave it with 10% then in the morning it will be 34%

    Diptangshu M.


    • Evan Bergan 1
      Evan Bergan Apr 4, 2016 Link to comment

      My Note tablet does the same thing after it seems to discharge all the way I turn it off for a few minutes and when it's back on again it suddenly has like 90% battery


    • Diptangshu M. 15
      Diptangshu M. Apr 9, 2016 Link to comment

      Same thing happens to me.


    • Kenneth_Mc 150 1
      Kenneth_Mc 150 Jun 20, 2016 Link to comment

      its possessed, lol no it just needs to be calibrated.


  • Diptangshu M. 15
    Diptangshu M. Mar 28, 2016 Link to comment

    I think I need this. Sometimes my phone shows that it's charging even when I'm outdoors.


    • 1
      Momom May 27, 2016 Link to comment

      Think you have bigger problems... a healthy device never behaves this way


  • Jignesh Shah 1
    Jignesh Shah Mar 11, 2016 Link to comment

    I TRIED BATTERY CALIBRATION APP BUT IT SAYS "YOUR DEICE IS NOT ROOTED"
    HOW CAN I FIX THE PROBLEM>


    • 1
      Walter Chan Mar 21, 2016 Link to comment

      Root your phone... Noobs


  • 1
    Sandro Keller Mar 9, 2016 Link to comment

    I don't think that calibrating really works... A google manager refused that.
    But what I do is to log my charge cycles to see how my battery is doing.
    I really take care of my phone's battery because I can't replace it easily.
    First I logged my charge cycles by hand in a CSV sheet.
    But now I've found an app that does the same for me: "Charge Cycle Battery Stats".


    • Afel Nemes 1
      Afel Nemes Jun 12, 2016 Link to comment

      So if a "google manager" says you can fly, you jump of a skyscrapper?


  • 1
    umar memon Feb 25, 2016 Link to comment

    second method works for me.


  • 1
    Ziad Mohamed Feb 18, 2016 Link to comment

    i calibrated my battery many times and it's still go off when the battery become 60% or more what should i do to fix it :/


    • 1
      Momom May 27, 2016 Link to comment

      Change battery?


  • 2
    Bryn Feb 3, 2016 Link to comment

    "The same goes for the myth that deleting the batterystats.bin file will magically recalibrate your battery."

    Seems odd that you would recommend people run the app "Battery Calibration" in Method 2 - Take a look at the description for that app in Play Store and you will see that is exactly what it does!

    Carlos Inniss


    • Gonza Rohrer 1
      Gonza Rohrer Mar 20, 2016 Link to comment

      It is pretty clear here "Even though I'm not convinced that clearing the batterystats.bin file has any meaningful effect [...] there are those who swear by this method."
      That's why they "recommend" (they don't actually, they are telling you it doesn't change anything) installing Battery Calibration.


  • 모가지 1
    모가지 Jan 29, 2016 Link to comment

    I have a question.
    In method 2, 11, switch off means turn off my phone or turn off the screen?


    • 4
      Scott Johnson Feb 5, 2016 Link to comment

      I take it to mean complete shutdown.


  • 1
    Adekunle Afolabi Jan 28, 2016 Link to comment

    samething happen to me starting to 2 days ago my INFINIX hot note. slow in charging. for good 8 hours it will not charge more than 20percent. and I use deferent USB cord and 3th party charger still the same thing. .. till today am getting it difficult to charge above 10 percent. . please what is the solution?


  • 1
    Imran Abbas Jan 27, 2016 Link to comment

    Hi friends I have problem little bit different to it. I am from Pakistan I bought a local phone. QMobile z10 very popular in Pakistan... It has 3gb ram with octa core processor... And its camera features are also very nice that I didn't see in other mobiles ... But it has some issue with battery... It drains battery very early even on stand by 10% per hour everythings off... But when it reach on 1% it can run for more then 2 or 3 hours continuously . so guide me how I can fix it plz???


  • Akuma 豪鬼 1
    Akuma 豪鬼 Jan 24, 2016 Link to comment

    Hi guys. I try to root my phone ( S. Galaxy s5, it's unrooted) multiply time, and my battery is quickly consumed. What to do? To follow first step? Thanks. :)


  • 1
    Yevgenyi Gorbachev Dec 26, 2015 Link to comment

    i want to shut my phone OFF when the battery reaches a certain level (say 15%), to prevent damage to the battery.

    is there an app for that?


    • 1
      Jowjow How Jan 21, 2016 Link to comment

      It's a bit useless because Android does it automatically, but you can still use Tasker (paid/with root privileges) or perhaps Macrodroid (free) will do the trick. So give it a try.


  • 1
    Satsu Jin Dec 22, 2015 Link to comment

    Recently my cellphone started doing weird stuff like showing the battery percentage to be at 40% and suddenly in a space of seconds it goes to 10%. It also happens that I'm using my phone normally, the battery showing a percentage above 50% and then when I tunr it off and turn it on right after, when the phone starts again it starts at low percentage 15% or less and automatically shows the message saying the battery is dying and telling me to recharge, and if I don't the battery left goes down really fast droping 1% in 5-10secknds

    Could that be a problem in the calibrage? Should I try doing the calibration in this case or not?


    • 1
      Jowjow How Jan 21, 2016 Link to comment

      Give it a try, I also have the same problem. I'll notify if it has helped.


  • Kenny Sigat 7
    Kenny Sigat Dec 14, 2015 Link to comment

    Just to know.. cant the battery calibration work for non root device?


    • 1
      Mohhammad baqir Dec 16, 2015 Link to comment

      No dear. It needs root permission


    • 1
      Jowjow How Jan 21, 2016 Link to comment

      You can calibrate without root but manually.


      • paul stamant 1
        paul stamant Feb 9, 2016 Link to comment

        How do you do this manually? Please help! Thx


  • 1
    Rocky Blāze Dec 13, 2015 Link to comment

    my phone not charging anymore when it's switched on nor the PC\Laptop charging it or showing the storage on laptop from 2 weeks after i calibrated my smartphone with this" battery calibration " app ....please help me tell me what should i do now...i factory reset the phone 3 times and tried to charge with different cables and chargers but still the problem exists...please help!!!


    • 1
      Mohhammad baqir Dec 16, 2015 Link to comment

      Reboot into reovery.....powwr+volume up+home buttons......and clear cashe partition and delvik cache.
      or power off cellphone keep on charger connected...charging mode...for some hours
      or see if ur battery is dead....check through spinning test.....spin your battery on a smooth surface if it spins quick then it needs replacement. Hope one of these work for u better luck


      • 1
        Rocky Blāze Dec 18, 2015 Link to comment

        i already cleared cache partition manytimes but there is no option of delvik cache in my phone's recovery mode....and my battery is fine the problem is not with the battery i know that....


  • 2
    ‫محمد أ‬‎ Nov 21, 2015 Link to comment

    wiping my catch fixed the issue
    thanks

    Sandro Keller


  • 1
    john Oct 7, 2015 Link to comment

    I have a questions by point 11.
    11. Fully charge the battery one more time without interruption and you should have reset the Android system's battery percentage.

    Phone must be powered on or off, when it charge ?
    And the reset Android system's battery percentage - will be automatic or how ?


    • Scott Adam Gordon 31
      Scott Adam Gordon Dec 4, 2015 Link to comment

      It should be switched off ideally. And yes the battery percentage is automatically calibrated. It's the reason that manufacturers want you to fully charge your device the first time you use it. I'll make this clearer in the article :)


    • 1
      Mohhammad baqir Dec 16, 2015 Link to comment

      preferably screen off
      android system's battery percentage is automatically reset thru this method


  • Junaid Q. 17
    Junaid Q. Aug 26, 2015 Link to comment

    This trick really help this helped me to recalibrate my s4
    After trying new roms and upgrading to 5.0.1 and downgrading to 4.4.2 my battery didnt last long much than after I got expose module which prevent force shutdown after battery low and I notice that my device work more than 30 min in 0% battery, than I used this trick to recalibrate it back

    Thanks kris carlon u saved my few bucks of new battery


  • 4
    Bill Brown Aug 26, 2015 Link to comment

    There are battery calibration apps that don't require full discharge, do you not recommend using those?


  • Zion B 1
    Zion B Aug 23, 2015 Link to comment

    This is very useful information. But the problem that I'm having with my S3 besides the battery drainage after the 4.3 update is that, my phone is not charging to 100%. What it does is charges between 95-98%. And if I leave it to charge longer,the percentage starts dropping. Any idea on what I can do to solve this problem would be greatly appreciated


    • 1
      Fisnik Ahmeti Nov 21, 2015 Link to comment

      I am having the same problem with my S3 it keeps charging but never gets to 100% and if I leave it longer it will simply just stop charging tried all sorts of methods but didn't get any results, now my phone has turned of completely and wont even let me charge it I got a new battery (spent quite a few bucks ) but still didn't work,I tried changing my charger still didn't work I cleaned the port and guess what! still did't work the only option I have now is sending it to an expert but thought I get the opinion of people suffering with the same problem as me.


      • 1
        John Schonewille Nov 26, 2015 Link to comment

        Hi Frank, have you tried any battery status apps? I have the same issue and the apps I've tried show "discharging on AC" when plugged in with 1.0 a wall charger but only after the charge has reached +/_ 80%.
        I have tried two batteries and several charge and data/charge cables. Anything from the experts yet?


      • 1
        Fisnik Ahmeti Jan 3, 2016 Link to comment

        Yes I have finally resolved the issue, I had to change some parts of my phone it wasn't as expensive as I had thought it would be so that's great.
        I also did a factory data reset since I was suspicious of some sort of application/virus running on the background.
        But hey what you gonna do at least I have my phone on working order again.


  • 1
    g454572 Mar 27, 2015 Link to comment

    Americans have serious problems with SI units...
    The use of "milliamps" should be sanctioned. mA is a current! it has absolutely nothing to do with capacity! mAh is a charge, in this case it denotes the maximum charge that the battery can hold aka capacity. Integrating a current of x mA over one hour gives you the charge in mAh.


    • 2
      Theron Smith May 28, 2015 Link to comment

      Or it could be he simply forgot to write "hours" after milliamps. mAH is just milliamp hours, the amount of charge moved with a milliamp of current in an hour.

      John Schonewille


    • 1
      cool nezz Jun 8, 2015 Link to comment

      She's Canadian!


  • 1
    Odeta D Mar 14, 2015 Link to comment

    üyuuyhgf


  • 1
    TiHo Dec 29, 2014 Link to comment

    Well my phone will say its charging.. It'll say 20%then it'll say 3%...I need help!


  • 1
    Vinnie Nov 27, 2014 Link to comment

    There is some useful information in this article.
    However I have to say that Method 2 under "How to calibrate Android device battery without root access" doesn't make any sense... The app tells you what's the instantaneous current in mA and not what's the current capacity of the battery (mAH). There is no way to understand how charged is your battery (other than a percentage based on the batterystats file) by using the app...

    Also the video posted for Method 1 under "How to calibrate Android device battery with root access" is private...


  • 1
    Lloyd Abando Nov 8, 2014 Link to comment

    When do I knew when my battery is calibrated?


  • 2
    Ted Nov 5, 2014 Link to comment

    Your instructions are clear as mud and the CurrentWiget is not working on my S3.


    • 1
      ofbarea Dec 23, 2014 Link to comment

      Works fine with my S3 running CyanogenMod 11 M12. Try rooting your phone, it should work.


  • 1
    Zack Samaco Oct 19, 2014 Link to comment

    Hi what do you mean when you say "do not load until the smartphone turns itself off after reaching a 0% battery level." does it mean that you have to wait until it goes to 0% without doing anystuff with your phone or is it ok to use your phone while waiting for it to go down to 0%?


    • Scott Adam Gordon 31
      Scott Adam Gordon Oct 31, 2014 Link to comment

      Ahhh yeah that could be a little clearer. But yes, it is okay to use your phone in this time. If you want the battery to run down even faster, turn your screen brightness to 100% while your are using it.


  • 3
    David Apr 17, 2014 Link to comment

    hi guys love all the help ur giving. question ....ive heard from so many people telling me that leaving ur fone charged all day and nite is bad. Also that its better to let the fone drain a bit ..? thoughts?


    • 2
      Kat Hervera Sep 25, 2014 Link to comment

      to old batteries it applies. but on your smartphone battery it doesn't. just apply the 40/80 rule when charging your gadgets. also remember to keep it cool. ave. batt life span is 3-5yrs. an ave heat of 32deg farenheit decrease batt life up to 6% of max capacity per year.

      Amat Mulisha


      • Mat N. 2
        Mat N. Jul 9, 2015 Link to comment

        Umm...... Just curious, what the hell is the "40/80 rule?"

        Breeze


      • 2
        Kurama Eclair Aug 14, 2015 Link to comment

        To keep your battery charging level in between 40-80%. Hence, not filling it up to 100% every time. it increases the battery life

        Breeze


  • 14
    Amat Mulisha Apr 16, 2014 Link to comment

    does one of this method are harmful to my phone if my battery not having any problem?

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