Battery Hero: Health & Widgets

RedPi Apps

About this app

Track battery health, detailed screen time, drain rate and per-app battery usage with Battery Hero — the complete battery tracker and health monitor for Android.

Ever wonder which apps are eating your battery? Battery Hero shows you how much battery each app uses in the foreground, how fast it's draining, and how it's holding up over time.

🏠 HOME SCREEN BATTERY WIDGETS
Add a battery widget to your home screen in three styles — classic, minimal, and circular. It shows battery percentage, charging status, time to full, and time remaining at a glance — without opening the app.

📱 PER-APP BATTERY USAGE
See how much battery each app uses in the foreground. Per-app usage is estimated from current draw and app foreground time, helping you identify the biggest power-hungry apps.

⏱️ SCREEN TIME TRACKER
See your daily screen-on time across the past week. Tap any day to break it down hour by hour and see which apps kept your screen on the longest.

⚡ BATTERY DRAIN RATE
See how fast your battery is draining in real time. Measure your drain rate and view an estimate of how long it will last.

🪫 USAGE SINCE LAST CHARGE
See exactly how much battery you've used since you unplugged — power drained, screen-on time and screen-off time, plus the level you last charged to. Know whether apps or standby are draining your phone.

📊 REAL-TIME BATTERY MONITOR
Track battery voltage, temperature, current, and charge level in real time. See estimated time remaining and time to full when charging. Watch live stats update as you use your phone.

📈 BATTERY HISTORY CHARTS
View detailed charts for battery level, temperature, and charging patterns. Spot trends in your usage behavior over time.

🔌 CHARGE SESSION HISTORY
Track every charging session with start level, end level, duration, and charging type. See patterns in your charging habits over time.

🔋 BATTERY HEALTH SCORE
Know exactly how healthy your battery is. Battery Hero calculates a health score based on capacity degradation, charge cycles, and thermal history so you can see if it's aging normally.

⏳ BATTERY CYCLE TRACKER
Monitor charge cycles and see how they affect long-term battery health.

🌡️ THERMAL STATUS & OVERHEAT ALERTS
Get notified when your battery temperature crosses safe limits. Set custom sensitivity levels and stay informed.

🔔 CUSTOMIZABLE NOTIFICATIONS
Set custom alerts for battery level, overheating, and charging thresholds. Get weekly reports and track battery usage in real time.

📲 MULTI-DEVICE SYNC
Sign in with Google and monitor usage across multiple Android devices in one place.

💡 BATTERY TIPS
Get device-based tips — like adjusting brightness, enabling dark mode, and reducing screen timeout — along with guidance on charging temperature and screen-on time.

Battery Hero combines per-app battery usage tracking, drain rate measurement, battery health monitoring, temperature tracking, and home screen battery widgets in one simple dashboard.

Download Battery Hero — the complete battery usage tracker and battery health monitor for Android.

Ratings and reviews

I installed this app about 38 hours ago , adjusted my Samsung per your recommendations and the cellphone is performing smoothly. So far you have a happy person here. Thanks for keeping it free. Will upgrade my review next week if no problems occur.

I like the app, but why do you need 1+ month to measure battery health, Android is build upon Linux and Linux can detect this immediately? I run Linux Mint 21.3 Cinnamon in my Laptop and the Power app can immediately tell me the wear of the battery.

works great, and finally no annoying ads. Just with it gave you a transparent slider adjustment so I could match it to the rest of my home page. T this time it's the only thing that's not glass. then would get 5 stars all day! great app otherwise

What’s new

- Added battery temperature widget