Your device isn't working anymore and do you want to know if your battery is exhausted? Or do you have some loose button cells and you want to know if they are still working? This battery checker will help you easily. Place your 1.5V or 3V coin cell in this battery checker. This button cell checker will show you the status in 3 different zones.
3 ZONES:
Red: the battery is exhausted.
Yellow: the battery is still working, but not full.
Green: the battery is full.
This battery checker measures 1.5V and 3V batteries.
April 7, 2025
