Amazon.com: Synergy Digital Cordless Phone Battery, Works with GP GP80AAAH3BXZ Cordless Phone, (Ni-MH, 3.6V, 800 mAh) Ultra Hi-Capacity, Compatible with Clarity C4220/4230 Battery : Electronics
Amazon.com: Synergy Digital Cordless Phone Battery, Works with GE 5-2459 Cordless Phone, (NI-CD, 3.6V, 600 mAh) Ultra Hi-Capacity Battery : Electronics
Tadiran TL-5903/S Battery 3.6v High Energy Lithium AA | OSI Batteries