Designed for high-tech, high-drain devices as they are quick and easy to change, and each lasts for approximately 1,000 charge/discharge cycles (4-5 years of normal use). Particularly well-suited fordevices requiring high-energy development over a short time. These NiMH 1.5-volt batteries are made from nickel-metal hydride and offer far higher power reserves than standard alkaline manganese batteries. Ideal for everything from digital cameras to notebook computers. Batteries do not contain cadmium. Battery charger sold separately (#477-2469).