I'm not very familiar with Chinkpad, but I think they'll crap on you if you have a dead/defective battery.
Try to start it without the battery (if it's easily removable)
Removed the battery, which is actually the original battery, and looks in decent shape, started it on power, and it just did the same bullshit again. Lenovo screen, system reset.
So it isn't the battery.
Entered bios but I cant figure out which setting to fuck with. Thanks for your help tho. Let me know if you have any other ideas
Did you have automatic updates enabled?
Try what Bankster suggested (boot from a Live version of your OS from USB).
You can also press/hold SHIFT key down before powering it on (to boot into recovery mode).
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