L.L. White BT-446 Nickel Metal Hydride Rechargeable Cordless Phone Battery, DC 3.6V 800mAh (3 pack) 3.6V (Compatible with 3.7V). Capacity: 800mAh. High-Quality Replacement battery; Designed to meet or exceed performance of original battery. Type: Replacement Battery. Chemistry: Ni-MH Reachargeable: Yes. Color: white Included in package: Three batteries