Hello guys,
I have a brand new battery sealed for my UMBP 15", what do you guys think I should do first?
1. Calibrate it first
2. Charge it until it reaches 100% then use it normally.
Just start using it while it charges. You don't need to wait until it's fully charged to start using it. You only need to calibrate about once a month. Besides, you can't calibrate it properly until it's been fully charged at least once.
Just so you get a better reading, calibrating first would a good idea. You don't have to do it right away but it just helps you out a bit if you run into any trouble.
Your New Notebook Be sure to fully charge your portable when you plug it in for the first time, and then run Software Update to ensure you have the latest software. Apple periodically releases updates that may improve battery performance.