Power-On Hardware Issue

Hello all, hoping to get a little assistance on a hardware issue I'm having. I've got an older framework laptop (Batch 5, ~Nov. 2021), and recently it's been having issues powering on. Regardless of the laptop's charge, it will not power on unless it's plugged in. As soon as I past the POST, I can unplug it and it will continue on battery, but in order to get it to actually power on it needs to be plugged in.

Not sure what could be causing this, maybe just a weak battery? Battery health is at 84%. Looking forward to ya'lls thoughts. Thanks!