3.6V 800mAh Ni-MH Effective Office Cordless Phone Battery for Uniden: BT-909, DCT7383, DCT738-3T, DCT7383T, DCT738-4, DCT7384, DCT750, DCT756 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.