A:AnswerMy MacBook Pro is older with a 15 inch screen and it works fine. Therefore, I believe that it would. However, I’m sure you can exchange it if doesn’t.
A:AnswerThis adapter specifically said that it would work for the 15 inch model. You may need something lower than 85 w. I would suggest to research on Best Buy online and read the information.
A:AnswerNo. This is a computer charger for older generation Macs. iPad Pro I believe uses the USB-C or the first one iPad Pro I believe is the lightning connection
A:AnswerYour Mac Pro is "fully charged and done," in your words, but as you use it and the battery runs down, you will need to keep charging the Mac Pro. It's a good investment at $80 because without it you can't use your computer.