BATTERY-23A

This is a 23A 12V Alkaline Battery (also known as an MN21 or A23 battery). While it looks like a miniature version of a standard AA battery, it functions quite differently under the hood.
​Key Specifications
​Voltage: 12 Volts
​Chemistry: Alkaline
​Composition: Interestingly, a 23A battery is actually made of eight small 1.5V button cells stacked together inside the metal casing to achieve the high 12V output.
​Mercury-Free: The packaging indicates 0% Mercury, making it more environmentally friendly than