Lenovo Has Exploding Battery Problem, Announces Recall | Gear Digest:
If you are using any R60, R60e, T60, T60p, Z60m, Z61e, Z61m and Z61p series notebooks and using the 9-cell battery packs with the part number FRU P/N 92P1131, your notebook battery may explode.
While you wait for your replacement battery you switch off your machine, remove the battery and only operate it on AC power, and customers shouldn’t use any battery packs not provided by Lenovo or one of their resellers
For USA Users – A battery recall site
International users: find their support number here