Need a battery for ASUS Laptops/Notebooks with the following model numbers: UL30, UL30A, UL30VT, UL50, UL50AG, UL50VG, UL80, UL80A, UL80AG, UL80JT, UL80V, UL80VS, UL80VT ? BTI has you covered with our premium 8 cell LiIon battery. This product has been engineered to meet or exceed the original manufacturer's specifications and replaces the original ASUS part numbers A42-UL50, 07G016BW1875, 07G016C11875, 70-NWU1B3000Z, 70-NWU1B4000, 70-NX81B3000Z, 90R-NWU1B3100Y, 0-NWT3B3000Y. All BTI batteries are manufactured and tested under our stringent quality standards and come with an industry leading 18 month manufacturer's warranty. BTI... True to the original.