Synergy Digital Cordless Phone Battery, Works with Vtech SN6307 Cordless Phone, (Ni-MH, 2.4V, 750 mAh) Ultra Hi-Capacity, Compatible with AT&T BT166342, BT266342, BT183342, BT283342 Battery;

SDCP-H334 - Ni-MH 2.4 Volt, 750 mAh, Ultra Hi-Capacity Battery - Replacement Battery for American Telecom, At&t & Vtech Cordless Phone Batteries.