4-Pack BT-1008 , BT1008 / BT-1016 , BT1016 High-Capacity Cordless Phone Replacement Batteries for Uniden DECT and Radio Shack Replaces Uniden DECT and Radio Shack cordless phone batteries Designed to meet or exceed OEM specifications Chemistry Ni-MH, Capacity 750 mAh, Voltage 2.4 Constructed from premium nickel-metal hydride cells for quality and performance Guaranteed Quality - 3 Year Manufacturer's Warranty