... -U80, Asus A33-U50, Asus LOA2011, Asus 90-NVA1B2000YCompatible with Laptop Models:Asus U20, Asus U20A, Asus U20F, Asus U20FT, Asus ... , Asus U80V, Asus U81, Asus U81A, Asus U89, Asus U89V Laptop Battery with 6cell 5200mAh Capacity Replacement Battery for U20 U30 U50 U50F