Hello I've been having issues with my 7760, today I arrived at work and connected my laptop to my dock 

and suddenly the laptop started to get ultra mega slow, even on bios, I'm on bios 1.5, everything is up to date, including dock and peripherals.  What is weird is that if I disconnect the AC the laptop will turn off, that includes the dock and directly from AC brick, I tried multiple bricks and docks, the laptop wont turn on from battery alone neither.

 

I RTC the bios and nothing happened, after that I started the bios and did a self diagnosis and the battery was not being detected.  We open up the lid and remove the battery, pressed the power button for 30 seconds and after that the laptop turn back on again.

The issue is that whenever I swap from docks the problem starts over again, if the computer goes to sleep the problem pops up again.  Please Help.  At 0.18GHz even the sounds came out like a Wolf with Covid19.  Thanks