T400 does not then start on battery

Title really sums it up. 3-year-old T400 starts fine while on the current, but on the power of the battery, no lights come on or anything when I press the power button. Initially, I thought it was the battery, but the new battery 9-cell, I ordered has not changed anything.

When I open the power manager, it is said that the battery 6 cells of origin has 0.0 amps and 11 V. said the same thing about the battery 9 cells. I'm willing to bet against Lenovo me sending a flat battery, but everything is possible. I tried to uninstall the power manager and resettlement; same thing. I tried to reset the battery CMOS/backup. The only thing I have not tried is a restoration of the BIOS. Currently, using the version 3.22.

System Specs:

T400 w / T9400 processor and switchable graphics

Win7 x 64 Pro

Any suggestions would be very helpful. I would call Lenovo support, but most of what I found on CIHI points for them not being is not useful unless you are under warranty (which I am not).

Thank you.

If cleaning does not work, then your laptop motherboard is most likely the culprit.

Tags: ThinkPad Notebooks

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