Overview: Rechargeable Battery Capacity: 2800m 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 2800 m Ah rechargeable batteries Specification: Weight Approx:40g Size Approx:5 x 5.7 x 1.4