Accu​Battery

Contains adsIn-app purchases
610K reviews
Content rating
PEGI 3
10M+
Downloads
Content rating
PEGI 3
Digital Purchases
Learn more
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About this app

Accu​Battery displays battery usage information, and measures battery capacity (mAh) based on science.
 
❤ BATTERY HEALTH
 
Batteries have a limited lifespan. Every time you charge your device, it wears out the battery, lowering its total capacity.

- Use our charge alarm to remind you to unplug your charger.
- Discover how much battery wear was endured during your charge session.
 
📊 BATTERY USE
 
Accu​Battery measures the actual battery usage using information from the battery charge controller. Battery usage per app is determined by combining these measurements with information on which app is in the foreground. Android calculates battery usage using pre-baked profiles that device manufacturers provide, like how much power the CPU uses. In practice however, these numbers tend to be highly inaccurate.
 
- Monitor how much battery your device is using
- Know how long you can use your device when it’s active or in standby mode
- Find out how much power each app uses.
- Check how often your device gets woken up from deep sleep.
 
🔌 CHARGE SPEED
 
Use Accu​Battery to find the fastest charger and USB cable for your device. Measure the charging current (in mA) to find out!
 
- Check how fast your device is charging when the screen is on or off.
- Know how long it takes to charge your phone and when it’s finished.
 
HIGHLIGHTS
 
- Measure real battery capacity (in mAh).
- See how much wear your battery sustains with each charge session.
- Look up the discharge speed and battery consumption per app.
- Remaining charge time - know how long it takes before your battery is charged.
- Remaining use time - know when you will run out of battery.
- Screen on or screen off estimations.
- Check the percentage of deep sleep, when the device is in standby mode.
- Ongoing notification for real time battery statistics at a glance.
 
🏆 PRO FEATURES
 
- Use Dark and AMOLED black themes to save energy.
- Access to historical sessions older than 1 day.
- Detailed battery statistics in notification.
- No ads
 
We're a small, independent app developer with a focus on quality and passion for battery statistics. AccuBattery doesn’t require access to privacy-sensitive information and doesn't make false claims. If you like the way we work, support us by upgrading to the Pro version.
 
Tutorial: https://accubattery.zendesk.com/hc/en-us
 
Need help? https://accubattery.zendesk.com/hc/en-us/requests/new
 
Website: http://www.accubatteryapp.com
 
Research: https://accubattery.zendesk.com/hc/en-us/articles/210224725-Charging-research-and-methodology
Accu​Battery monitors battery health performance via science
Updated on
Nov 6, 2025

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
    Location, App activity, and Device or other IDs
  • This app may collect these data types
    Location, Personal info and 3 others
  • Data is encrypted in transit
  • You can request that data be deleted

Ratings and reviews

588K reviews
Nathan E
February 15, 2022
My current Samsung is a few years old and the battery drain is starting to become the norm. I've used apps in the past that claimed to be 'power saving apps', however their meddling either caused more battery drain or made no difference. This app isn't like that. Instead you get a deep dive and insight into all the different elements of your phone battery, ranging from discharge rate, app usage, health etc. Knowledge is power, and this app gives you the former. Highly recommended!
176 people found this review helpful
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Max
November 16, 2023
Very useful app. I was testing my battery prior to replacement and it has all the stats I want. I think long-term it'll be a great bit of data to look back on. Only downside is after installing the new battery, I think the app has got a tiny bit confused (I assume it's expecting degradation, so the stats don't quite make sense). Perhaps needs an option for different profiles or a reset?
115 people found this review helpful
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Peter King
March 24, 2024
One of the most important apps on my devices. Aswell as all the battery info one of the main things is that it tells you how much power is going into the mobile when on charge. You get to know if the cable you use is any good. You can see the difference between plug sockets. Even on extension cables there can be a big difference on how much power is entering the phone on charge depending where in the extension you are plugged in. This app is crucial to have for this info and more.
102 people found this review helpful
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What’s new

• Fixed overlay rendering behind rounded screen corners.
• Charging page: show why a charge cycle is not included in battery health calculation.
• Health page: fixed display of "charged for _ mAh total".
• Charging / health: improved handling of long sessions with disabled charging (like Sony's 80% charge limit) - works now for calculating health.
• Updated and improved purchase handling.