HQRP Phone Battery for AT&T/Lucent E5918B, E5921, E5922B, E5923B, E5924B, E5926 Cordless Telephone plus Coaster HQRP&reg; Rechargeable Battery plus HQRP&reg; Coaster; Battery Voltage: 3.6V; Capacity: 700 mAh; Ni-Mh; Keep in touch with friends and family and never miss a conversation; Compatible with Original Battery; 200 Days warranty!