Brand: Dual
Dual CR 40 is a type of battery that has a voltage output of 6 volts (3 volts per cell) and a total capacity of 4000 milliampere-hours (mAh) when two 2000 mAh CR 2032 cells are connected in series. This type of battery is commonly used in low-power applications such as electronic devices with long-term memory, like digital SLR camera settings or remote controls. Despite its relatively high capacity, the Dual CR 40 has a limited discharge current, typically around 150 mA, to extend its life and prevent over-discharge.