Cell phone charging port was getting loose. Couldn't depend on it staying connected charging.
I remembered I had another identical phone with damage. It was virtually brand new when taken out out service.
Opened up both phones, swapped the charger ports. Problem handled yay
https://youtu.be/uRwAhsEYkMM?si=aPsdZpYquJD09kzo
Similar to this procedure although I didn't go battery deep. I save that for when I need more stress in my life