This app _tries_ to show battery level of the bluetooth devices. Bluetooth device MUST has Hands-Free profile (accept, reject phone calls) or GATT profile (usually 4.0+ Low Energy devices).
To recheck battery level just tap on the notification.
From version BatON 1.2.69:
Added some accessibility functions
Fixed show notification by battery level condition
All versions
September 21, 2019
September 11, 2019
August 18, 2019
July 24, 2019
July 23, 2019
July 22, 2019
July 12, 2019
July 12, 2019
July 11, 2019
May 24, 2018