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Hi, experts! I really hope to solve this problem as it has been drilling me for weeks now. When I shut down my Mac, the Mac shut down correctly and I closed the lid. Left it in my desk until morning. In the morning, I felt that the Mac was warm to the touch and when I turn on, it boots up with Apple logo (like a normal startup, so it wasn’t sleeping) and it asks for my password before I could use Touch ID (so it wasn’t sleeping). BUT the battery had drained from 100% (when I shut it down) to 5%, if not completely 0 mAh left in the battery (literally 0% and won’t boot unless plugged in) when I turn it on. I find this behaviour rather frustrating and it definitely consumes my charge cycle. When I shut it down and left it for some good 2-3 hours, it also drains around 20-30%. Yes, I have once removed the Logic Board for cleaning (after some minor liquid damage around the iBridge Bus, which caused camera, Touch Bar, and ambient sensor to no longer work). But I made sure everything was dry and cleaned all the corrosion with 95% ethanol before putting everything back together. Couldn’t be I missed something that causes this weird problem right? Things I have tried: Resetting the SMC and NVRAM (and even T2 chip) multiple times.Reinstalling macOS (I used 10.15.2 and tried downgrading + fresh install 10.14.6 to no avail).Shutting the Mac down and not even touching the lid. So, left the Mac open after shut down for hours, and yet it drained too.Turning off Wi-Fi before shutting the Mac down. all to no avail. Weirdly enough, if I just sleep the Mac, the drain was normal (just 1% drain overnight). Shut down, which was not supposed to drain any battery, was actually draining A LOT (even if need power for startup or shut down, those maybe drain around 1-5%, not 20%). Please advise me on what to do. Thank you so much :)) Here is a coconutBattery screenshot:
Not good ;-{ Your logic board is damaged! Sadly, USB-C is not that locked down! Your system will now be the sixth system I have seen which has been damaged by a 3rd party charger. Apples rush has put a lot of peoples systems at risk. Do you have AppleCare + if you do I would visit an Apple Store to get your logic board replaced otherwise you’ll need to find someone who has the skills to fix your logic board or just replace it your self.
Click Go > Utilities and open the Activity Monitor app.Now click on the Energy Tab and Energy Impact header to view the apps and processes taking up the most power on your Mac.Hope this helps.
It is find my Mac that drains all your battery overnight =)
Hi Tim, it can be as simple as it is scheduled to startup in the morning, let’s say at 6am every day. I was wondering about this too and then found that it has been set this way. Click on the - battery/ open energy saver preferences/ schedule (very bottom right corner)/ start up or wake - it must be unticked.
Hello folks. I took my macbook to repair store and they’ve found several little coffee drops on logic board. My mac is second hand, bought September 2019. I’ve never drop anything on it so it had to be done by previous owner. Problems occured after 8 months of using. I upload pohotos to show you how it looked. It had to be cleaned. During this some elements just fall out and needed to be replaced. After whole process everything works fine, mac stopped battery darining. It cost 1000 PLN (polish currency) which is about $250. PROBLEM SOLVED!
In my case, it said the TuneIn app was causing coreaudiod to prevent sleep. Check that it is off. “pmset -g” can tell a lot! Also, add the “PreventingSleep” column to Activity Monitor.
