ABCENT Cordless Phone Battery for 400mAh 3.6V Vtech BT-17333, BT-27333, CS2111, 01839, CS51212 CS5121Sanyo : CLT3500, GESPCH06, Radio Shack: CS90174 12280731 23-956 23-9069 43-3215, Novacell: 3MR600 2/3AA 3MR6002/3AA 400mAh/3.6V High Quality Replacement battery Battery shrink wrap casing made of 100% post consumer recycled product