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
Nickson Torres Delos Reyes
UPDATE- thanks for fixing the notif bug and %icon. It would be great if you also add CPU temperature on notification bar. Because I also monitor my cpu temp to avoid damage. A format like "c41° b37°" to differentiate cpu/batt temp or on-top of each other just like inside your app "show percentage and temp". Thanks :)
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?
Joon Keat
Currently the best battery app that combines all the useful features from other battery monitoring/dozing apps. I'm obsessed with monitoring my batt and this is the only app I needed and have uninstalled a bunch of other apps.
Prashant kulkarni
It really helping to save battery for Android 11 when few apps prevent Android to into deep sleep. The Lite doze options is very difficult to understand, please provide option to disable all lite doze settings as most people want deep sleep after screen off.
IBF Ahmed
1. It closes itself and i have to run again and again. If android closes it, then run it again by asking another permission from us while installing your app. 2. Why you read Android Device Configuration Service? You steal all our private data! 3. Your answer was not customer friendly.
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. ✌✌
MD Tahsin Hossain
5+ stars for sure. It shows phone charging information accurately. Also the battery health is 99% accurate. Also it shows charging speed (in Watts) is a charm. Keep it going developers.
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!
Sium Ahmad
Clearly this is the best app. Legit stats and even support for dual battery too. The BS features and all of the features are useful and updates keep coming with more optimisations. Loved it and satisfied with this. Highly Recommended! And thanks Dev, keep up the good work ❤️