If you own a Lenovo ThinkPad, check your computers model number now. The US Consumer Product Safety Commission issued a recall today for a small number of the Chinese notebook makers battery packs, saying they can overheat and pose a fire hazard. Some 34,500 battery packs in the US are affected, including those sold in the Edge 11, 13 and 14, T410, T420, T510, W510, X100e, X120e, X200, X201 and X201s notebooks.