Thinkpads Forum

Any one ever had a issue with there laptop suddenly shutting down even when the battery still has a charge? The T500 battery was at 35% and it shut down with no warning.

yes this can happen when the battery has faulty cells.

You may want to reset the battery using the battery maintenance software.

http://leadorg.wordpress.com/technology ... -with-tpm/

I have seen that behavior a lot of times with aftermarket batteries, but only a few times with "real" ones.