This is a 4 cell Brand New Original Battery for IBM. New Original Battery is designed for use with Lenovo ThinkPad X40 and X41 notebooks. Compatible ThinkPad Models: Lenovo ThinkPad X : X40, X41. Replaces IBM part #s: 92P0999, 92P1000, 92P1001, 92P1002, 92P1003, 92P1005, 92P1009, 92P1080, 92P1119, 92P1146, 92P1148, 92P0998, 92P1143, 92P1145, 92P1147, 92P1149, 92P1078, Product Specifications...