Chosen Solution
I have a problem with waking up my MBP after leaving it for a few hours in sleep mode. It had its battery replaced 2 weeks ago and I already encountered this problem a few times. I use my MBP with or without charger, then I close the lid and put it to sleep. The battery is charged (for example 80%, 50% etc). I disconnect the charger and leave the laptop on the desk or put it to my backpack. After few hours of being in sleep mode, when I want to open it again, I get the black screen with the icon that the battery is drained and that I need to connect the charger. When I connect the charger it wakes up and the battery seems to has the same charge amount as when put to sleep. After waking up I can unplug the charger and work on battery without any further issues. It happened just a few times with my previous battery (during more than 5 years), but after a long time of use and only while I took the laptop outdoors and it was rather cold outside. Now it is happening indoors too and almost every time after leaving laptop for a few hours. Today I did the SMC reset but didn’t help.
The issue is the battery itself. I called ifixit and told them my issue; they told me the battery is probably defective and shipped me a new one. After installing the new one, the issue is gone. I advise anyone who is experiencing this and has already tried the SMC reset and deleting the files in ~/Library/Preferences to reach out to whoever you bought the battery from and ask for a replacement/refund. Hope this helps.
It worked for me, so i’ll post it again as an answer: Delete the “com.apple.PowerManagement.plist” file and all .plist files with “PowerManagement” and “AutoWake” in the name in the same folder. You find these files under -/Library/Preferences/
I tried all these fixes and reset the SMC. Same issue. I also replaced my battery recently.
I reset the SMC as well but nothing has changed. Is it related to my battery? I see a “service recommended” alert under the battery icon.
