This is a Brand New 9 cell Li-Ion Battery for IBMLithium Ion System Battery is a battery that supports the ThinkPad Notebooks. Compatible ThinkPad Models: ThinkPad Z60m: Z60m Type: 2531, 2532, 2530. ThinkPad Z61m: Z61m Type: 0674, 0675, 9450, 9451, 9452, 9453. ThinkPad Z61e: Z61e Type: 0673, 9452. ThinkPad R60: R60 Type: 9445, 9446, 9447, 9455, 9456, 9457, 9458, 9459, 9460, 9461, 9462, 9463, 9464...