HQRP Cordless Phone Battery compatible with AT&T/Lucent 3300, SKU 90556 18392 HS-CO240M Replacement plus Coaster HQRP&reg; Rechargeable Battery plus HQRP&reg; Coaster; Battery Voltage: 3.6V; Capacity: 1200 mAh; Ni-Mh; AA Cells; Keep in touch with friends and family and never miss a conversation; Compatible with Original Battery; 200 Days warranty!