Received this item New Replacement 9 Cells High Capacity Li-Ion Battery for IBM ThinkPad Compatible Models in a timely way, properly packaged. However, it failed to charge on or power my Lenovo-IBM ThinkPad T60 -- a laptop explicitly mentioned as compatible with this battery. The laptop's charging system did not detect the battery, and no amount of workarounds seemed to help. I do not know if the failure to detect the battery was due to the lack of an identifying chip in the battery, dead cells in the battery, or no cells at all in the battery.. In any case, returned it to Amazon (free return shipping) for a full refund. A+ to Amazon; -0- to this vendor (fulfilled by Amazon) and product. Purchased a different replacement battery from Amazon and that seems to be working just fine -- it was twice the price of the failed one. TANSTAAFL! (There Ain't No Such Thing As A Free Lunch!)