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T420s Power issue

Posted: Tue Oct 18, 2011 1:55 pm
by jgrjr
I have a T420s and whenever it is unpluged and turned off it seems to lose charge. If I have a full charge and turn off the machine with no power attached it drops by as much as 15% within a few hours. If unused over a few days it will run down to 50%. I have tried different power settings and cannot find anything to solve the problem. Is this normal. The fingerprint sensor shows a green LED when the machine is off. This is a wake funtion I cannot seem to disable.

Any ideas?

Re: T420s Power issue

Posted: Wed Oct 19, 2011 11:48 am
by Colonel O'Neill
Sounds like the fingerprint reader.

You should be able to disable it either in the Lenovo Fingerprint software, or in BIOS.