L.L. White Rechargeable Cordless Phone Telephone Battery for Uniden BT-1021, BT1021, 1008 (two pack) Package Content: 2 x 2.4V 650mAh Ni-MH Cordless Phone Batteries Color: White Voltage: 2.4V Capacity: 650mAh Chemistry: Ni-MH Over-voltage, over-current, over-charge, and short-circuit protection