ultralast cordless phone battery ni-mh, 2.4 volt, 750 mah - ultra hi-capacity - replacement for v-tech 89-1330-01, 8300, att 3101, 3111, uniden bt1011 rechargeable batteryUL133 - Ni-MH, 2.4 Volt, 750 mAh, Ultra Hi-Capacity Battery - Replacement Battery for V-Tech 89-1330-01, 8300, ATT 3101, 3111, Uniden BT1011 Cordless Phone Battery.