Mensagem original de: Nick Malerba ,
03/18/2021: I solved my issue by doing the following: # UNPLUG THE MACBOOK AND '''LEAVE IT UNPLUGGED UNTIL STEP 9''' # Use it until until it dies # Hold shift+control+option+power for 10 seconds (resets the SMC) # Turn on the MacBook # Repeat steps 2 through 4 until it stays dead (I had to do this 5 times before it was officially dead) # Hold shift+control+option+power for 10 seconds (resets the SMC) # LEAVE THE MACBOOK ALONE FOR A MINIMUM OF 5 HOURS!!! # Attempt to turn on the MacBook, IF IT DOES NOT TURN ON PROCEED TO STEP 9 # Plug in the MacBook and let it fully charge to 100% , disable anything that prevents this from happening # Use an app like Coconut Battery to see if things match. If not, try this one more time. I knew steps 2 through 5 worked because my MacBook would shut off at 62% BUT after the third reset it finally jumped to 6% and I was able to run it unplugged for a ridiculously time. This worked for my 2017 MacBook Pro 13” (two thunderbolt ports) that only had 152 charges on the battery. I used to leave it plugged in pretty much all of its life.