Li-ION Battery for Acer AS07A31 AS07A32 AS07A41 AS07A72 as07a42 as07a51 as07a52 as07a71 as07a75 as09a31 as09a41 as09a51 as09a61 as09a75 Capacity: 4400 mAh, Voltage: 11.1 V, Color: Black Package Include: One Pc Laptop Battery for listed models This Product Has 12 Months Replacement Warranty 100% Oem Compatible