Battery Temperature Alarm

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About this app

Charging should not be a guessing game. Battery Temperature Alarm shows the battery information Android reports and lets you start a focused Charging Guard session with the limits you choose.

Get an alert when the battery becomes hotter than your threshold, reaches 80%, 90%, or full charge, stays connected too long, or is unexpectedly unplugged.

WATCH A CHARGING SESSION
• See battery level, charging status, battery-reported temperature, voltage, and Android thermal status when available
• Follow a simple local temperature trend
• Keep a visible ongoing notification while Charging Guard is active
• Stop monitoring at any time

SET YOUR OWN ALERTS
• High battery temperature at 40°C, 42°C, or 45°C
• Charge level at 80%, 90%, or full charge
• Charger disconnected
• Charging duration at 2, 4, or 8 hours

REVIEW LOCAL HISTORY
Review recent charging samples with their battery level and reported temperature. This history stays on your device.

HONEST DEVICE HEALTH INFORMATION
The app separates battery-reported temperature from Android's overall thermal status. It does not label every warm reading as dangerous, and it does not claim to read sensors your phone does not expose.

IMPORTANT LIMITATIONS
Battery and thermal data vary by phone and manufacturer. Some properties may be unavailable, estimated, or updated at different intervals. Android and OEM battery management can stop background work. For reliable long-session alerts, you must start Charging Guard and keep its ongoing notification enabled.

The app cannot physically stop charging, cool the phone, repair a battery, diagnose battery health, or guarantee battery lifespan. If a device becomes unusually hot, swells, smells, smokes, or behaves abnormally, disconnect it safely and follow the manufacturer's support guidance.

Set a limit, start a session, and know when your charging conditions change.

What’s new

Initial release with battery heat alerts and charging safety guidance.