HQRP Phone Battery for V-Tech/VTech gz2439 / 2439, gz2456 / 2456, gz2457 / 2457, gz2459 / 2459, gz5838 / 5838, ia5824 / 5824 Cordless Telephone + Coaster HQRP&reg; Rechargeable Battery plus HQRP&reg; Coaster; Battery Voltage: 3.6V; Capacity: 350 mAh; Ni-Cd; Keep in touch with friends and family and never miss a conversation; Compatible with Original Battery; 200 Days warranty!