Overview: Rechargeable Battery Capacity: 700m Ah Voltage: 4.8 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 700 m Ah rechargeable batteries Specification: Weight Approx:31.3g Size Approx:10.5 x 4.3 x 1