Coin button battery finder - photo

[Altair]

Coin button battery finder.




Previously:

Vintage PP3 9-volt batteries - photo
Slicing open a phone battery - GIF
Micro USB rechargeable battery - photo
Wiring a battery pack - GIF
Shredding batteries - GIF

[Bony]

I trust that this battery identification aid is made from a non conductive material to save draining the battery.

[Jon]

Nice. I need a magnifying glass to read the markings on some of the smaller watch batteries.

[Toolmaker51]

I believe M. Klotz pointed out numerical coding of button cell (coin) reveals the sizes in whole mm and divisions of, thickness first. Range is 5 to 25 millimeters in diameter and 1 to 6 millimeters in height.

https://digilent.com/blog/quick-coin-battery-guide/