Chosen Solution
Replaced the battery after the old one was seeming to expand. When I first turned on the computer after the battery intallation the battery showed 100%, then it instantly went down to 25% which it has been ever since. The mag-safe light is not turning on and “Battery not Charging” on battery info. I am uploading the coconut battery report if that helps. Thank you for your help!
Update (01/07/2022) Thank you very much for your reply, I was just going to update that I moved the charger to another plug and it started charging, but now has gone up to 39% and although at the time the menu stated that the battery was charging now again it is stuck at 39% stating that the battery is not charging… could it be a charger issue? I am attaching the new coconut Battery report.
Sadly your charging logic on the main logic board has a problem. Other than making sure the MagSafe port contacts and insulator area are clean so the power is getting in (the center one-wire comm connection is working here) there is little you can do here without fixing the issue which is likely a burnt comparator resistor or two. Here’s a good reference: How cheap eBay batteries DESTROY Macbook logic boards!
MacBook Pro 15" Retina Display Mid 2014 MagSafe DC-In Board Replacement
