Hitech - Replacement KXT3702, KXT3805, KXT3875 Cordless Phone Battery for Many Panasonic Phones (Model #s KXTC155 through KXTC415) New version of battery is slightly smaller than original, but works exactly the same Capacity: 300mAh; Voltage: 3.6V Chemistry: Ni-Cd See description for list of compatible cordless telephones Replaces Panasonic P-301A/KX-A36A battery, GE BT11 battery