Hitech - 4 AA Ni-MH 2500mAh Rechargeable Batteries for Video Game Controllers, Toys, 2-Way Radios, Digital Cameras, and Anything That Uses AA Batteries Package contains 4 AA Hitech rechargeable batteries Works in any device that uses AA batteries, best for high-drain situations Chemistry: Ni-MH; Capacity: 2500mAh; Voltage: 1.2V each Ni-Mh batteries has no memory effect compared to Ni-Cd batteries Charger sold seperately. May we recommend ASIN: B003O57F4C and B0047QRD6W