HQRP Cordless Phone Battery for Lenmar CBC909, BATT-909, ER-P512 / ERP512GRN Replacement plus Coaster HQRP&reg; Rechargeable Battery plus HQRP&reg; Coaster; Battery Voltage: 3.6V; Capacity: 800 mAh; Ni-Mh; Keep in touch with friends and family and never miss a conversation; 100% compatible with Original Battery; 200 Days warranty!