Affected battery packs can be identified through their part number, starting with the fourth digit on a white sticker below the bar code. The identifiable numbers are 42T4695, 42T4711, 42T4798, 42T4804, 42T4812, 42T4822, 42T4828, 42T4834, 42T4840 and 42T4890.
Alternatively, you can also head over to this web page to know if your battery is being recalled. Just call the phone numbers provided on the web page to order replacements, which the company claims will ship in three business days.
As of now, no human injury has been reported, but the company did receive a couple of reports of the battery packs overheating, resulting in damages to the laptops and to property. Until a replacement battery arrives, the company is advising users to turn off the system, remove the battery, and only power their ThinkPad by plugging in the AC adapter and power cord.