The battery drains when it is off on my 15" Macbook Pro with Retina display. What can I do? I have already sent it in for repair and the they replaced the battery, but it is still doing it.
MacBook Pro with Retina display, OS X El Capitan (10.11.3)
Are you sure it is off, and not just asleep? If you close the lid, that does not turn it off.
If you select shut down, make sure that hitting any key does not wake it up before closing the lid.
Yes, it is off. Last night I turned it off at 5pm battery was at 75%. This morning I turned it on at 7:30am and battery was down to 69%. I am not a techie, but I would appreciate any help.
There are actually two batteries or in some cases one battery, and one capacitor. One supplies obviously the power when you turn it on, and it is not connected to a plug in the wall. The other supplies certain system settings and affects the PRAM. The latter if not replaced after 4 years can give conniptions to everything else. So depending on how old your Mac is, you may be faced with its demise being replaced by the main battery as a source for those settings. That second battery or capacitor is called the PRAM battery, CMOS battery, or Clock battery. Check where you had your battery replaced if they looked at that one or not.
I Bought the computer in Dec. 2015. The battery was replaced by Apple.
http://www.apple.com/batteries/ explains how they work. A little loss of charge is not unusual. Now if it lost 90% of its charge after 20 or 30 hours of being off, then I'd worry. The meter on the computer is not exact. Knowing how young the PRAM battery is, that's the only logical explanation.
Take it back to Apple for diagnosis and repair.
Battery drains when off!
