3.6V 800mAh 3*AAA Extended Capacity Cordless Phone Battery for Uniden: BT-909, TRU-9380, TRU-9380-2, TRU-9380-3, TRU-9380-4, TRU-9385, TRU-9385-2. Voltage: 3.6V; Capacity: 800mAh; Size:3*AAA. Free shipping. It comes with a 1 year warranty. Talk time: 4-5 hours & Standby time:10 hours on a single charge. NI-MH battery & No Memory effect & longer running time.