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
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.
Gourav Bhriegu
Thanks for the app. I am using this app along with your speed indicator and after the latest update both of there notification icon are fighting for the priority please help as it is a bit annoying to watch both icons continuously "shifting".
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.
A Google user
I love it. Please add an option in which the app can automatically turn off the wifi when it's disconnected from a known network, also another good idea you should take into consideration would be to give the option to make the phone call you instead of normal notifications.
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.
Rishabh Narayan
Excellent app for whatever you need to know about your device's battery, charger, charging speed and all. Useful features available for battery protection like level alarm, temp alarm etc. Have been using it since 2.5 years in every phone I own. Definitely recommended whether you are a basic or advanced user.
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 ❤️
Michael Clark
Great App! I have a smaller phone with minimal battery life so being aware of all the aspects of my battery are key in maintaining optimal battery health. This App has everything and the ads are discreet and don't interfere with the App operation or function. Excellent!
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