With a life span of up to 1000 charges, this 9V (PP3) size battery is a simple and reliable source of power for your everyday devices. Their long shelf life means they are always around when you need them with 80% energy retention after 1 year. The rechargeable hybrid technology (nickel-metal hydride) allows for less waste than with standard disposable alkaline batteries. Please note the charging device is sold separately. The battery contains 0% of harmful metals cadmium and mercury. The battery casing prevents leakage to protect your family's devices and is made up of anti-corrosion components. Package Includes: 1 x 9V (PP3) 250mAh Rechargeable Batteries