Okay, I have had plenty of experience with this kind of stuff. Used to be an Apple tech. I did not have a problem replacing the battery, but after I did so and tried to charge the battery it hot very very hot. Now it won’t boot at all. No screen etc. Is there a possibility that the battery is defective or was charged with a reverse voltage to begin with? Yes the battery is installed correctly. Any hints are appreciated.

Grumpy4650