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
Darrian Dohunye
All I can say is that this app is legit,it really determined how long my battery was gonna last,my phone often overheats when I play huge games,but when I checked how to save battery online,I ran into the 5 apps,this one was the best and I played a game for hours and my phone didn't overheat .5 Stars. ✌✌
A Google user
I wish the notification for charging threshold can use custom ingtone or custom a tone. I always missed to charge 80%. Overall this a great app. Good job!
Rizky Darmawan
I update this review, after long development this app already has all the core features plus some additional features all for free. After accubattery development seems to be stop, this app finally can replace that.
Gregor Diseth
Hello, will the app be updated in the future to accurately report capacity for split cell phones such as my OnePlus 7T? I have entered half the design capacity as a work around, but this really isn't a proper solution. Otherwise your app is well written and highly useful. Thank you!
Pratham Desai
Easy and beautiful UI , it's good that no feature is hidden behind subscription. Hope it stays like this. I don't mind the ads. Edit: the new UI sucks, it's not easy to access the information, everything is hidden behind clicks which makes it inconvenient
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.
Subhanshu Mohan Gupta
Deep sleep doesn't work sometimes. Please fix this. And also please add an online backup option for all our charging and discharging records so that we can't lose our records even after removing the app.
William Scott
Pro app no ads, the app is the Best battery manager I've used in all my time using Android. My only recommendation allow white list of a certain app or apps if you enabled data saver to not sleep those apps
stevan k
Tried many of these proved to be the best. An application that makes it worth unlocking the bootloader and routing your phone. Battery life has increased significantly.