This replacement 3.6V 650mAh Cordless phone battery pack with a universal plug offering a longer talk time fitting a wide variety of phones. Nickel Metal Hydride Ni-MH. Voltage 3.6V. Capacity 650mAh. This 650mAh version replaces prevoious 300mAh, 350mAh and 400mAh versions. Please note stocks of the Uniross brand are currently unavailable, however we are able to supply a top quality and exact equivalent in another brand. It replaces the Uniross BC101692 04H 04C PT4 and the GP T107, GP T107A, GP T157, GP T279.