Rechargeable NiMH AA batteries are excellent for power intensive devices like digital cameras, radios, boom boxes and remote control cars, or they can be used in low drain devices to replace alkalines. They can be recharged up to 400 times, while their low discharge properties mean they don't need recharging as often. Rechargeable NiMH AA batteries can be used as exact replacements for standard AA batteries and NiCD AA rechargeable batteries in most all equipment.