1.Volt:11.1V Capacity 4400 mAh 2.Repace orgnial laptop battery 3.low price 4. accept OEM Compatible P/Na1022,a1079, ... ,m9183j 12.1 We provide replacement laptop battery for IBM/Lenovo, DELL, HP/Compaq, Acer, ASUS, Toshiba, Apple, Packard Bell, Gateway, Fujitsu, NEC ...