Specifications: Voltage: 15.6V Capacity: 4000mAh Battery type: Ni-MH Weight: 759g per battery Replacement for: Panasonic EY9230B, EY9231, EY9231B National EZ9230 Compatible with: Panasonic EY3530, EY3530FQMKW, EY3530NQKW, EY3530NQMKW, EY3531, EY3531NQWKW, EY3793, EY3793B, EY3795B, 431NQKW, EY6432, EY6432FQKW, EY6432GQKW, EY6432NQKW, EY6535GQW EY6535NQKW, EY6930FQKW, EY6931NQKW, EY6932GQKW National EZ3530 ,EZ3530XM, EZ6230, EZ6230N22K, EZ6230X, EZ6631, EZ6631N22K, EZ6631X, EZ6930,EZ6931, EZ6931N22K, EZ6931X Package includes: 1x 15.6V 4000mAh Ni-Mh Battery for PANASONIC EY9230B EY9231 EY9231B EZ9230 EY6432.