BattWatch: Battery Health

Al-Mothafar Al-Hasan

About this app

BattWatch keeps an eye on your battery so you don't have to — accurate health, honest numbers, and alerts that actually help.

Formerly Simple Battery Notifier, rebuilt from the ground up: more accurate battery health, smarter charging insights, and no more false warnings.

★ Alerts that respect you
• Low and critical battery alerts at levels you choose
• Full-charge alarm so you can unplug and protect the battery
• Quiet hours — no alerts while you sleep
• Optional vibration, custom sounds, silent-mode override

★ Real battery health
• Estimated battery health % and wear grade
• Charge cycle count (uses the OS value on Android 14+)
• Measured capacity vs. rated (mAh) capacity
• Days-in-use tracking

★ Charging intelligence
• Live charging speed — tier and wattage (e.g. "Fast charging ~18 W")
• Estimated time to full
• Slow-charge warning for a frayed cable, dirty port, or dying charger

★ Live status
• Ongoing notification: %, charging state, temperature, charge/drain rate
• High-temperature safety alert
• Fast-drain alert when something drains your battery in the background

★ Simple and honest
• No ads, no tracking, no account
• Lightweight, no root required
• Open source
• English & Arabic

BattWatch reads only public battery information — it can't and won't access anything else.

What’s new

This one is about how the app looks — and about monitoring that stays on.

• Dark theme: match your phone, or pick Light or Dark yourself
• Tap the corner of the battery ring to switch theme on the spot
• Monitoring now comes back on its own after the app updates
• The app tells you when the system stops monitoring in the background
• Dialogs and menus redrawn in the app's own colors
• The ring no longer replays its intro every time you rotate

No ads. No tracking. Open source.