3C Battery Manager

Contains adsIn-app purchases
3.9
21.6K reviews
Content rating
Everyone
5M+
Downloads
Content rating
Everyone
Learn more
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About this app

The most complete tool to monitor your battery: Shows historical data (%, mA, mW, mV and temperature), calculates estimated run-times and battery aging, helps calibrate battery, and improves your battery run-time by showing your top consuming apps (requires searching your device for all installed apps).

Top consuming apps are achieved by searching all installed apps on your device, this data is not collected and for your eyes only. Privacy Policy

★ Display historical data using customized graphics, fully scrolling and zooming.

★ Show battery information in status bar/notification

★ Display battery data on your home screen using widgets

★ Trigger alarm based on battery information

★ Calculate remaining time while unplugged or charging (AC/USB/Wireless)

★ Calculate actual battery capacity

★ Support multiple removable batteries

★ List top apps used (requires searching your device for all installed apps)

★ Online help accessible from app

★ Lowest battery consumption on the market


★ Special support for Asus Transformer, Padfone, Inno D6000 and HP dual battery devices.

★ Special edge support for Samsung devices

★ Special root only: Limit battery charging on supported devices (highly experimental, disable+reboot in case of charging issue)


In-app purchase can be made to remove ads and unlock the following features:

★ Show historical data on your home screen using graphical widgets of various sizes (from 2x1 up-to 5x2)
★ Add history markers automatically on boot, plug/ROM/kernel/battery changes
★ Add unlimited number of information in status bar/notifications
★ Update battery capacity or reference based on measured data
★ Show unlimited number of line indicators on top of everything
★ Keep information of unlimited number of batteries
★ Show more battery data using wide (2x1) widgets
★ Add unlimited number of alarms
Updated on
Mar 28, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
Device or other IDs
No data collected
Learn more about how developers declare collection
Data is encrypted in transit

Ratings and reviews

4.0
20.1K reviews
Deezee Dizzy
January 29, 2026
I love this app. I've used it across multiple generations of phones, mostly for the widgets... I love the fact that I can set a battery temperature alarm. But I would like to set a battery temperature alarm for low temperatures, not just overheating, but also under cooling... All this would require is changing the equal or higher sign to equal or lower. But unfortunately I cannot change that symbol. It allows setting very low temperatures, but then the alarm is always on.
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Phil Bennett
February 27, 2026
Despite testing all the different current monitoring options, the figures this app displays were always hopelessly wrong - I used an actual power monitor in-line with the USB cable to measure the power being supplied, and they were not even close.
1 person found this review helpful
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Timothée Sartore
January 24, 2025
Great app! I have been using it for year across generations of android (since android 7 at least). And it worked really well, until I got a Pixel 8 and now I see multiple missing data message of 15 to 50 minutes each day. I have allowed notifications and unrestricted battery usage, but it still keeps happening. Edit : thanks for the reply 3c. I had a look at the link and fixed the problem by adding the "Battery Information popup". I can buy the full app without worry now :)
3 people found this review helpful
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3c
January 23, 2025
You will need to follow this guide to fix this: https://3c71.com/optim, possibly following the link for Android 10. This will get rid of missing data ;) Thanks for using my app.

What’s new

Adds low battery temperature alert to device watcher