Hitech - Replacement 8050710000, DAA800X3, CPB400D, 3SNAA80SJ1 Cordless Phone Battery for Many AT&T Phones Capacity: 700mAh Voltage: 3.6V Chemistry: Ni-Cd Equivalent to AT&T 3300, 3301, 8050710000; Sanik 3SN-AA60-S-J1, 3SNAA80SJ1; 5-2459 See product description for list of compatible telephones