Over time a battery will become sulfated and they will not recharge fully, have the charging system tested completely just make sure the alternator and computer controls are functioning properly and the battery can accept the input. It really sounds like you have a battery that is on its way out. Note, do not disconnect the battery without hooking up a saver tool or it could cost you at least a hundred bucks to get the system re-flashed due to main power loss.
My 2017 gave me a fright yesterday. It wouldn't charge with either the 120 V charger which came with the car, nor with the 220V one I installed in my garage. I went to the mall and plugged the car into a charger there and it worked fine. When I came home, I plugged it into the 220 charger and it works fine, so far? The problem is that I am at 36k miles, so am worried about it not being covered anymore.
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