Didn't they have some issues when you tried charging from the left side ports? Eg overheating and throttling etc.
There are some models of MacBook Pro where one side has more 'thermal headroom' than the other side. I have one of those models, and I can't remember which side it is.
There are some models of MacBook Pro where one side has more 'thermal headroom' than the other side. I have one of those models, and I can't remember which side it is.