The best open source alternative to AccuBattery is BatteryBot. If that doesn't suit you, our users have ranked more than 25 alternatives to AccuBattery and 11 is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to AccuBattery are Wattz, AirBattery, BetterBatteryStats and Battarang.
Shows your battery charge level (percent) as an icon in your status bar, with temperature, health, voltage, and time since plugged / unplugged in the notification area. It also has user-configurable alarms, logs, and widgets.
wattz is a simple battery power indicator for your Android device's status bar, showing the number of watts coming out of, or going into, the battery. Opening the app also shows additional detailed battery metrics.
AirBattery can automatically collect the battery usage of all your devices without installing any client app on them.
PowerPlanSwitcher is a simple app that allows you to quickly switch between power plan schemas from application tray. In addition to a manual schemas switching it also supports an automatic switch when AC adapter gets connected/disconnected.
PlusPlusBattery is a lightweight battery info and health estimation tool specifically tailored for OnePlus/Oppo/Realme devices (with universal device support).
See your battery percentage, health, status, and other details in the Windows system tray. Be notified when battery becomes critical, low, high, and full.
Advanced battery monitor with detailed per-app drain analysis, session tracking, and root/Shizuku-powered deep system statistics.
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BatteryBot lets me set battery charge levels to send notifications at so I can plug/unplug