HQRP Phone Battery compatible with AT&T LUCENT CL82400, CL82450, CL82500, CL82550, CL82600, EL52100 Cordless Telephone plus Coaster HQRP&reg; Rechargeable Battery plus HQRP&reg; Coaster; Battery Voltage: 2.4V; Capacity: 800 mAh; Ni-Mh; Keep in touch with friends and family and never miss a conversation; ompatible with Original Battery; 200 Days warranty!