Battery Alarm is a full battery alarm and low battery alert app that notifies you the moment your phone reaches the charge level you choose. Stop overcharging, extend battery life, and never wake up to a dead phone again. Set a charging alarm at 80%, 90% or 100%, or a low battery alarm at 20% — Battery Alarm rings, vibrates, speaks or notifies you so you can unplug on time.

🔋 FULL BATTERY ALARM (CHARGING ALARM)
• Alarm when charging reaches any level you pick (e.g. 80% for battery health, 100% for full charge)
• Overcharge protection: unplug on time and keep your battery healthy for longer
• Works with wired, wireless and PC/USB charging

🪫 LOW BATTERY ALARM
• Get warned before your phone dies — set a low battery alert at 10%, 15%, 20% or any level
• Separate alarms for charging and discharging
• Perfect for gaming, travel, navigation and long work days

⏰ MULTIPLE ALARMS, FULLY CUSTOMIZABLE
• Create unlimited battery alarms with different levels and conditions
• Alert type: full-screen alarm, notification, ringtone or spoken battery level (text-to-speech)
• Pick any system tone or your own audio file
• Custom vibration patterns and repeat vibration
• Set how long the alarm rings (seconds or minutes)
• Enable, disable or delete alarms with one tap
• List or grid view for your alarm dashboard

📊 BATTERY STATUS & BATTERY HEALTH MONITOR
• Live battery level, temperature, voltage, current (mA) and power (W)
• Battery health, battery type and technology
• Battery capacity (mAh) — design and estimated real capacity
• Charging time and discharging time estimates
• Min/max values so you can spot heat and drain problems
• Clear "good for battery" / "may harm battery" indicators
• Celsius or Fahrenheit temperature unit

🎨 THEMES, DARK MODE & LANGUAGES
• Dark mode, light mode or follow system
• Multiple color themes
• Custom notification icon and notification style
• Available in 60+ languages

⚡ RELIABLE & LIGHTWEIGHT
• Autorun after boot so alarms keep working after a restart
• Small app size, minimal battery usage
• No account, no sign-up, no personal data collected
• Optional one-time Premium purchase to remove ads forever

WHY USE A BATTERY ALARM?
Keeping your phone plugged in at 100% for hours stresses the lithium-ion battery and reduces its lifespan. Charging to 80–90% and unplugging on time helps your battery stay healthy longer. Battery Alarm makes this effortless: plug in, walk away, and get a full charge alarm exactly when you want it. On the other side, a low battery reminder gives you time to find a charger before your phone shuts down.

WHO IS IT FOR?
• Anyone who charges overnight and wants a battery full alert
• Gamers and streamers who need a charge alarm while playing
• Travelers and commuters who rely on a low battery warning
• Users who want to monitor battery temperature, voltage and battery health
• People who want to extend battery lifespan and avoid overcharge

PERMISSIONS
Battery Alarm needs notification permission to ring alarms, and on some devices background/autostart permission so alarms fire when the screen is off. No location, contacts or internet-based data collection.

Download Battery Alarm — the smart charging alarm and battery monitor that protects your battery and keeps you charged.