Designed for long-lasting power in everyday devices, the Energizer Power Plus D HR20 is a an affordable battery that promises optimum performance even after hundreds of recharges. Using a NiMH (Nickel Metal Hydride) chemistry, they pack a capacity of 2500 mAh each with a voltage of 1. 2, making them perfect for items that have a high drain ration such as torches, flashlights and remote controllable items. A fully charged Power Plus D HR20 can provide power for twice as long as a regular alkaline battery and they are extremely friendly to the environment as they can last for years before disposal becomes necessary. There is also no need to fully drain them before recharging and they do not suffer from any memory drain. Sold in packs of two, they are additionally green as Energizer .