Overview: Be Sure to charge before using for the first time. Avoide short circuiting the battery. Never immerse in water. Keep away from heat sources. Do not connect & use with ordinary dry cells.100% Brand New Rechargeable Battery Capacity: 1000 m Ah Voltage: 1.2 V Chemistry: Ni-MH (Nickel Metal Hydride) Rechargeable Times: Up to 1100 Times Memory effect: No Cadmium: Free Can be rapidly charged with any plug in charger.exact replacement for standard AAA size battery in all the devices. Package Included:4 x 1000m Ah AAA batteries Specification: Product Weight Approx:49g Product Size Approx:44 x 42 x 11