Replacement Ni-MH 700mAh Cordless Phone Battery for LUCENT E5972. This 3.6V battery (2.52Wh) measures 45.90 x 31.20 x 10.70mm and is compatible with models like AT&T/LUCENT 80-5848-00-00, E5981, E5982, and E6001. Ensure long-lasting talk time with this high-quality, rechargeable replacement power source.