The Most Comprehensive
Battery Analytics
Battery Analytics
Battery Mentor provides valuable insights into battery behavior using anonymized data collected through Battery Guru. Discover how different devices perform during charging and discharging, and gain a deeper understanding of your battery's condition and usage patterns.
Real Usage. Real Insights.
Battery Mentor delivers advanced analytics based on data from over a million Battery Guru users, helping you understand how different devices use power, how long they typically last on a charge, how fast they recharge, and more.
Data-driven estimates
Detailed analytics
Avg. capacity retained across reports
0 → 80% in about 38 minutes
≈ 7h 20m of active screen time
Only ~0.8%/hr idle drain
87% - Healthy
Battery Health
31°C Overheating!
Battery Temperature
67% Charged in 19 Minutes
Charging history
Essential Battery Insights
Battery Guru helps you stay informed about battery temperature, offers customizable alerts for low charge, and lets you track your charging history and battery health over time.
Battery health check
Charging speed insights
Our Users Say
Nice Things About Us
Shaun
Actual, legit, full-fledged battery and power management app without requiring root (some ADB commands required). It's not like those 1 or 2-screen useless stuff. It's up there with Accubattery and even better because of integration with battery saver and doze management.
Keith Kramer
I really like this application. Over the years of using Android I have tried many battery monitoring tools. This one has a great UI, and provided the data I want in a easy to read format. Thank you
Toby Pollock
It includes everything I want. The battery status notification shows the discharge current and temperature, very useful for monitoring while using another app.
Alexandros Yintsis
Great app, keep up the good work mate! Feature suggestion: When you click battery usage Android shows you SOT since last full charge ,which isn't accurate if you only charge to 80%. It'd be nice if we had SOT since last time unplugged regardless the charge percentage.
Demon Boy
This app is great, recently I install custom rom and the battery percentage was showing inaccurate readings. I only have one problem that is the notification of this app doesn't show on top of any other notifications even after turning notification priority on, please fix this.
Shawn
Good app, you need to be rooted to use it to it's full potential. You should add a way to support the app with a one time purchase "pro" version instead of the subscription model.
João Pedro
Very complete interface, lots of monitoring to improve battery life. Just amazing. Also liked the way ads are served, in an on demand way for free users. This non intrusive way is much more comfortable for users, trading off revenue. But UX is extremely improved this way.
Joe B
Thorough reporting of battery stats. You can enable temperature and battery heat thresholds and be notified. One quirk, the app shows which apps are using the most power, but it doesn't show this all the time. I haven't discerned a pattern as to when this report is available.
Narendra Athnikar
Just does what it is meant to do. After the recent update, the charge limit alarm set does not ring. Instead only a vibration is felt. So if I am not close to the phone the battery will continue charging to 100 % . May be I have done the app settings wrong or is it the update?