Replacement battery for LUCENT E3813 cordless phones. This premium Ni-MH battery provides 3.6V and 700mAh / 2.52Wh power, ensuring long-lasting performance. Dimensions: 45.90 x 31.20 x 10.70mm. Also compatible with models like E2813, E2901, E2913, and E5602. Restore your phone's talk time with this high-quality power source.