Chosen Solution
Why does the charge of the battery get down from 100 to 96 while the Mac is shutdown?
Because your system is not fully off, its just in standby. So you’ll find the battery will slowly drain over a week. To be sure and get a better view of things, install this gem of an app! CoconutBattery take a snapshot of the apps main window and post it here for us to see Adding images to an existing question
