Duracell 21/23 12V Alkaline Battery.

 Duracell 21/23 12V Alkaline Battery.

This constant can be used to represent the voltage of a Duracell 21/23 12V Alkaline Battery. It can be used in calculations to determine the amount of power that the battery can provide, or to compare the voltage of the battery to other batteries..........This code will calculate the battery life of a device that is powered by a Duracell 21/23 12V Alkaline Battery. The battery life is calculated to be 24 hours.                              buy on amazon