HQRP TWO Cordless Phone Batteries for VTech BT-18443 / BT18443 Replacement plus Coaster HQRP&reg; TWO Rechargeable Batteries plus HQRP&reg; Coaster; Battery Voltage: 2.4V; Capacity: 500 mAh; Ni-Mh; Keep in touch with friends and family and never miss a conversation; Compatible with Original Battery; 200 Days warranty!