Oh, dying batteries. You are the bane of my existence. But whereas many users will resort to better hardware (or even replacement batteries), my ...Read more
*** Over 7,000,000 Downloads! ***
JuiceDefender - Battery Saver is a powerful yet easy to use power manager app specifically designed to extend the battery life of your Android device. Packed with smart functions, it automatically and ...Read more
*** Over 7,000,000 Downloads! ***
JuiceDefender - Battery Saver is a powerful yet easy to use power manager app specifically designed to extend the battery life of your Android device. Packed with smart functions, it automatically and transparently manages the most battery draining components, like 3G/4G connectivity and WiFi.
The _preset modes_ are the perfect way to gain precious hours of battery life - literally as easy as one tap! JuiceDefender also allows _complete customization_ through a clean and intuitive user interface; and once configured it runs by itself, improving battery life in a fully automated manner. Finally, it _integrates seamlessly_ with power control widgets and shortcuts, without interfering with manual settings.
With JuiceDefender - Battery Saver you can easily manage Mobile Data, WiFi and CPU speed, you can keep power consumption under control (e.g. disabling connectivity when the battery runs low), schedule regular Synchronization events, enable or disable connectivity for specific apps, auto-toggle WiFi depending on your location, and much more.
When it comes to smartphones, battery life is never enough: run at full capacity when you need it, but save battery when you don’t, with JuiceDefender.
Over 7 million downloads show that it really works - try it for a few days and see for yourself, it’s free!
Features*: - 5 Preset Profiles (from default mode to full customization) - Easy and Intuitive User Interface - Home screen Battery Widgets - Mobile Data toggle automation - 2G/3G toggle automation** - WiFi toggle automation + Auto-Disabling option - Location-aware WiFi Control (e.g. enable WiFi only at home/work, disable it otherwise) - Battery Consumption Optimization (e.g. when screen off, battery under threshold, etc.) - Comprehensive Connectivity Scheduling (regular schedule, night time/peak time, week days/weekends) - Connectivity Control for Specific Apps with Interactive Training mode - CPU scaling when phone is idle** - Smart Brightness control - Bluetooth control with Automatic Reconnect - Full Activity Log - It’s FREE!
* Some features require upgrading to JuiceDefender Plus or Ultimate. ** Available if supported by your ROM
More information, reviews, and support: JuiceDefender.com Join the community: facebook.com/JuiceDefender
Do you have a question about this app?
UPDATED ON: Jan 15, 2012
SIZE Varies with device
INSTALLATIONS: 10,000,000 - 50,000,000
LATEST VERSION: Varies with device
ANDROID VERSIONVaries with device
automatically start at boot
Allows an application to have itself started as soon as the system has finished booting. This can make it take longer to start the phone and allow the application to slow down overall performance of the phone by constantly running.
change Wi-Fi state
Allows an application to connect to and disconnect from Wi-Fi access points, and to make changes to configured Wi-Fi networks.
prevent phone from sleeping
Allows an application to prevent the phone from going to sleep.
modify global system settings
Allows an application to modify the systemʼs settings data. Malicious applications can corrupt your systemʼs configuration.
change network connectivity
Allows an application to change the status of network connectivity.
write sync settings
Allows an application to modify the sync settings, such as whether sync is enabled for contacts.
read sync settings
Allows an application to read the sync settings, such as whether sync is enabled for contacts.
Allows an application to disable the keylock and any associated password security. A legitimate example of this is the phone disabling the keylock when receiving an incoming phone call, then re-enabling the keylock when the call is finished.
write access point name settings
Allows an application to modify the APN settings, such as Proxy and Port of any APN.
Allows an application to configure the local Bluetooth phone, and to discover and pair with remote devices.
display system-level alerts
Allows an application to show system alert windows. Malicious applications can take over the entire screen of the phone.
retrieve running applications
Allows application to retrieve information about currently and recently running tasks. May allow malicious applications to discover private information about other applications.
view Wi-Fi status
Allows an application to view the information about the state of Wi-Fi.
view network state
Allows an application to view the state of all networks.
full Internet access
Allows an application to create network sockets.
create Bluetooth connections
Allows an application to view configuration of the local Bluetooth phone, and to make and accept connections with paired devices.
precise (GPS) location
Access precise location sources such as the Global Positioning System on the phone, where available. Malicious applications can use this to determine where you are, and may consume additional battery power.
approximate (network-based) location
Access location sources such as the cellular network database to determine an approximate phone location, where available. Malicious applications can use this to determine approximately where you are.
modify/delete SD card contents
Allows an application to write to the SD card.
read phone state and identity
Allows the application to access the phone features of the device. An application with this permission can determine the phone number and serial number of this phone, whether a call is active, the number that call is connected to, ect.
modify phone status
Allows the application to control the phone features of the device. An application with this permission can switch networks, turn the phone radio on and off and the like without ever notifying you.
discover known accounts
Allows an application to get the list of accounts known by the phone.
Allows application to receive and process SMS messages. Malicious applications may monitor your messages or delete them without showing them to you.
Allows application to receive and process MMS messages. Malicious applications may monitor your messages or delete them without showing them to you.
receive WAP messages
Allows application to receive and process WAP messages. Malicious applications may monitor your messages or delete them without showing them to you.