Brand New Li-ion Laptop Notebook Battery for ACER ASPIRE 5532 5732Z EMACHINE D525 D725 E525 E725 Gateway NV52 NV53 NV54 NV56 NV58 NV78 series, fits AS09A61 AS09A41 AS09A31 AS09A56 AS09A71 AS09A73 AS09A75 AS09A90 Capacity : 4400mAh, Voltage: 10.8 V, Color: Black Package Include: One Pc Laptop Battery for listed models 100% OEM compatible! Guaranteed to meet or exceed OEM specifications! Please make sure that the battery part numbers listed in the description matches the battery part number on your original battery before you purchase.