... laptop battery for Dell 1745 17 1745 1747 1749 312-0186 N855P U164P Replaceable battery numbers:Y067P, W080P, U164P, U150P, N856P ... , N855P, M909P, M905P, A3582355, A3582354, 312-0196, 312-0186, 0W077P Applicable laptop Models:Dell Studio 1749 SeriesDell Studio 1747 ...