Battery Alarm: Full & Unplug

Full charge alarm, unplug & low battery alert, temperature and health monitor

Battery Alert is a full battery alarm and battery monitor that tells you the moment your phone is fully charged, running low, unplugged or getting too hot, even when your phone is on silent.

Stop overcharging and stop guessing. Set your charge alarm once and Battery Alert watches your battery in the background, even when the app is closed or your phone restarts.

⚡ FULL BATTERY ALARM

Get a loud full charge alarm when your battery reaches the level you choose, anywhere from 70% to 100%. Unplug at 80% or 90% to help reduce long-term battery wear, or wait for the 100% battery alarm. The battery full alarm re-arms on its own every time you plug in your charger.

CHARGER UNPLUG ALARM (ANTI-THEFT)

Charging in a café, office, airport or classroom? Turn on the charger unplug alarm and Battery Alert rings the second someone removes your charger. The alarm stops by itself when the cable is plugged back in. A simple charger removal alarm that helps keep your phone safe in public places.

LOW BATTERY ALARM

Never let your phone die again. Set a low battery alert anywhere up to 30% and get a reminder to charge before it's too late.

BATTERY TEMPERATURE & OVERHEAT ALERT

Phone getting hot while gaming, charging or in the sun? Set a battery temperature alert from 30°C to 50°C and get warned before your phone overheats.

Track live battery temperature on a graph for the last hour, 24 hours, 7 days or 30 days, with min, average, max and trend. Switch between Celsius and Fahrenheit anytime.

AN ALARM YOU WON'T MISS

• Rings even when your phone is on silent
• Vibrates in silent mode
• Full-screen alarm, even on the lock screen
• Slide to stop the alarm
• 11 built-in alarm sounds or your phone's default ringtone
• Keeps monitoring in the background and after a reboot

BATTERY HEALTH & BATTERY INFO

A complete battery monitor in one clean dashboard:

• Battery health status (Good, Overheat, Cold, Over Voltage)
• Charge cycles and capacity level (on supported devices)
• Battery capacity in mAh, remaining charge and energy
• Voltage, current, power in watts and battery technology
• Estimated time to full charge

⚡ CHARGING SPEED & CHARGING CURRENT

See your real-time charging current in mA with min, average and max. Check charging speed (Slow, Normal, Fast, Super Fast), power source (AC, USB or wireless) and voltage, and find out which charger and cable charges your phone fastest.

DEVICE INFO

Model, brand, Android version, hardware, display resolution, available RAM and available storage, all in one place.

28 LANGUAGES & DARK MODE

Choose a light, dark or system theme. Battery Alert speaks your language: English, Español, Português, Français, Deutsch, Italiano, Русский, Türkçe, اردو, العربية, हिंदी, Bahasa Indonesia, Bahasa Melayu, Tiếng Việt, ไทย, 日本語, 한국어, 中文 and more.

WHY USE A BATTERY CHARGE ALARM?

Lithium-ion batteries wear faster when they sit at 100% for hours or drain all the way to 0%. Keeping your charge roughly between 20% and 80% can help your battery last longer. Battery Alert's full battery alarm and low battery alarm make that habit effortless.

HOW IT WORKS

1. Open Battery Alert and tap Alarms & Notifications.
2. Turn on the alarms you need and set your percentage or temperature.
3. Pick your alarm sound in Settings.

That's it. Battery Alert takes care of the rest.

PERMISSIONS

• Notifications: to deliver your battery alarms
• Display over other apps: to show the full-screen alarm when it rings

Battery Alert does not ask for access to your contacts, photos, microphone or location.

Download Battery Alert, the battery charge alarm, charger unplug alarm, temperature alert and battery health monitor in one simple app.