Need a battery for Lenovo-IBM Laptops/ Notebooks with the following model numbers: X60 Tablet, X61? BTI has you covered with their premium 8 cell Li-Ion battery. This product has been engineered to meet or exceed the original manufacturers specifications. All BTI batteries are manufactured & tested under our stringent quality standards. BTI... True to the original. Features Technology: Lithium Ion Cells: 8 Cell Capacity 4800m Ah Replaces the original Lenovo-IBM part numbers U3-130, 28-390, BQC-PGM10X//1, L129, LA300, LCA3113, LCA3119, LMP-M130, LT50LP, LT51LP, U3-130, VLT-X30LP, VLT-XD20LP.