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: 2500m 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 AA size battery in all the devices. Package Included:4 x 2500m Ah AA batteries Specification: Product Weight Approx:110g Product Size Approx:48 x 14 x 5.6