The battery packs can overheat, posing a fire hazard.

Incidents/Injuries

Lenovo has received four reports of incidents of battery packs overheating and damaging the computers, battery packs and surrounding property. One incident included a consumer's skin being reddened and burn marks on the consumer's clothing.

Remedy

Consumers should immediately turn off their ThinkPad notebook computer, remove the battery pack and contact Lenovo for a free replacement battery pack.  Consumers can continue to use their ThinkPad notebook without the battery pack by plugging in the AC adapter and power cord.