ATC Home Phone Battery fits Uniden BT-1011 BT1011 GE 5-2734 Voltage: 2.4V; Capacity: 800mAh; Chemistry: Ni-MH. It comes with a 1 year warranty. Free shipping. Replacement battery for Uniden BT-1011 BT1011 BT-101 BT1018 and other models. Designed to meet or exceed performance of original battery. High quality, high capacity battery for longer running time;convenient to use.