BatteryGuard Health Monitor

See what your Android battery is doing with live readings and clear local trends.

BatteryGuard Health Monitor reads values ​​exposed by Android and organizes them into a focused battery dashboard. Check charge level, charging state, current, calculated power, temperature, voltage, system health, session changes, foreground app time, and an optional capacity-based health estimate.

LIVE BATTERY OVERVIEW
View charge percentage, charging or discharging state, power source, electric current, calculated wattage, temperature, voltage, technology, and the health status reported by Android.

CHARGE AND DRAIN MONITOR
BatteryGuard records lightweight samples while the app is open. Follow level and temperature trends, see the current session's start level and elapsed time, and review completed charge or discharge sessions when the power state changes.

OPTIONAL APP USAGE
If you choose to grant Android's special Usage Access, BatteryGuard can show a 24-hour foreground-time breakdown. The bars describe time spent in the foreground; they do not claim to measure each app's electrical energy use. Every other feature works without this access.

TRANSPARENT HEALTH ESTIMATE
Enter the rated battery capacity from your device specifications. When Android exposes a usable remaining-charge counter, BatteryGuard estimates full capacity and compares it with the rated value. The result is clearly labeled as an approximation, not a laboratory measurement.

IN-APP THRESHOLDS
Choose a low-level percentage and high-temperature threshold. BatteryGuard checks these settings while the app is open. Preview the alert vibration before relying on it.

LOCAL BY DESIGN
Battery samples, sessions, capacity, and thresholds stay on your device. Clear the local history whenever you want.

Hardware support varies. Some phones do not expose current, charge-counter, voltage, temperature, or health fields consistently. BatteryGuard reports unavailable data honestly and does not claim to repair the battery, accelerate charging, or extend battery life.