BatteryFu battery saver

BatteryFu battery saver


BatteryFu (pronounced Battery-Foo, like in Kung-Fu) extends battery life (and lowers data usage) by changing always-on mobile/wifi data to periodic sync (meaning it disables your mobile data and/or Wifi, then checks your accounts every X minutes). This also provides a way to manage your data usage.

BatteryFu is also great for tablet use to keep accounts sync'd even when the tablet is in sleep/standby. Normally accounts won't sync due to WiFi going to sleep (see "WiFi sleep policy").

*NOTE*: BatteryFu requires root on Android 5+ to toggle mobile data.

BatteryFu is open source software.

Features:
* Lean and fast (see download size!)
* Work for all networks (CDMA/GSM) from Gingerbread up
* Notification icon: lets you switch modes even while inside another app.
* Data while screen is on, with screen off delay
* Data while charger is plugged in
* Pre-defined modes: Travel mode, Online mode, Offline mode, Night mode, etc.
* BatteryMinder shows battery stats, like usage during screen off, kernel wakelocks, etc.
* 3rd party app support (using intents) so that you can control BatteryFu from your own app.
* Open source

Tips for even better battery life:
* Select "2g networks only" in Android settings
* Turn off "Network notification" under Wifi settings
* Uninstall apps if your phone is running out of RAM (e.g. slow to get to homescreen or switch apps)
* If your battery life is out of control, reset phone to factory defaults, install BatteryFu and be amazed! Then slowly re-install some apps
* Do not put apps on SD card if they run in the background. SD card access drains battery.

See website for more information, if you have problems, or would like to donate. Email for support, I don't check comments.

Recent changes:
v1.47:
- fixed "disappearing icon" issue from previous release

v1.46:
- Support for Android 5/CM12 (thanks to https://github.com/andyboeh)
- Needs root on Android 5 to toggle mobile data
Add to list
Free
75
3.8
User ratings
1575
Installs
100,000+
Concerns
0
File size
190 kb
Screenshots
Screenshot of BatteryFu battery saver Screenshot of BatteryFu battery saver Screenshot of BatteryFu battery saver Screenshot of BatteryFu battery saver
About BatteryFu battery saver
BatteryFu (pronounced Battery-Foo, like in Kung-Fu) extends battery life (and lowers data usage) by changing always-on mobile/wifi data to periodic sync (meaning it disables your mobile data and/or Wifi, then checks your accounts every X minutes). This also provides a way to manage your data usage.

BatteryFu is also great for tablet use to keep accounts sync'd even when the tablet is in sleep/standby. Normally accounts won't sync due to WiFi going to sleep (see "WiFi sleep policy").

*NOTE*: BatteryFu requires root on Android 5+ to toggle mobile data.

BatteryFu is open source software.

Features:
* Lean and fast (see download size!)
* Work for all networks (CDMA/GSM) from Gingerbread up
* Notification icon: lets you switch modes even while inside another app.
* Data while screen is on, with screen off delay
* Data while charger is plugged in
* Pre-defined modes: Travel mode, Online mode, Offline mode, Night mode, etc.
* BatteryMinder shows battery stats, like usage during screen off, kernel wakelocks, etc.
* 3rd party app support (using intents) so that you can control BatteryFu from your own app.
* Open source

Tips for even better battery life:
* Select "2g networks only" in Android settings
* Turn off "Network notification" under Wifi settings
* Uninstall apps if your phone is running out of RAM (e.g. slow to get to homescreen or switch apps)
* If your battery life is out of control, reset phone to factory defaults, install BatteryFu and be amazed! Then slowly re-install some apps
* Do not put apps on SD card if they run in the background. SD card access drains battery.

See website for more information, if you have problems, or would like to donate. Email for support, I don't check comments.

Recent changes:
v1.47:
- fixed "disappearing icon" issue from previous release

v1.46:
- Support for Android 5/CM12 (thanks to https://github.com/andyboeh)
- Needs root on Android 5 to toggle mobile data

User reviews of BatteryFu battery saver
THE NEAR PERFECT APP! The others are all around a Meg in file size, yet Batteryfu us just over 70k at the moment! I have some other simple ideas if the developer would like to contact me? Free software doesn't have to be bloated to be the best! :-)
Jun 30, 2012
Does the same thing as JuiceDefender but with no restrictions, and more configuration compared to the cost. And all in such a tiny package!
May 24, 2012
Great app for battery saving on par with Juicedefender but more user-friendly, IMHO :D Next sync time on the notification bar is extremely useful. New icon looks so cool :D Now v1.34 is amazing. Loving a number of added features like travel mode, anytime night-mode, and so on. Thanks a lot Toby :D
Jun 18, 2011
do not add, completly took of my network. The only thing that got this back was a full factory reset...
Dec 3, 2010
Would be cool if it worked. Trigger doesn't seem to deactivate/activate anything on Nexus/Froyo.
Sep 24, 2010
Android Market Comments
A Google User
Jan 22, 2015
Unable to connect All the data settings r enabled,but every 30 mins, when batteryfu starts, i only see ' waiting for connection'. Data is not getting enabled and thus not syncing. Pls help. Sony Xperia C5302 running android 4.3
A Google User
Jan 18, 2015
Awsome Really awsome app. Helps me save battery pretty easily. Options are simple. Nothing confusing. Very helpful. And saves data usage. Everything about this app, **Save** period.
A Google User
Nov 19, 2014
Nice little app for saving battery Can you please add option to set shorter on-off duration? Say 5 min sleep time and 2 min connect time?
A Google User
Sep 27, 2014
Nine Like
A Google User
Jul 14, 2014
Rubbish Doesn't save the setting everytime i have to open the application and save the settings again again