T420s Power issue

[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?

[Colonel O'Neill]

Sounds like the fingerprint reader.

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