MBP needs charger to wake up from sleep mode (new battery, charged)
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.
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I have the exact same problem, with the same machine. Replaced the battery 3 weeks ago and my mac wont wake up if the charger isnt plugged in even if the battery is charged. Did you find a solution yet?
- de _ mouseman
@_ mouseman Unfortunately not. I'm going to do a clean install soon and see if anything is going to change. A few ongoing projects hold me back but hope I'll be able to finally do it this month.
Also noticed that if I leave my mac in sleep mode unplugged and after a few hours I plug the charger back without waking it up, then it wakes up normally.
- de Martin
@msz I just tried deleting the "com.apple.PowerManagement.plist" File I had two weird files with cryptic names +com.apple.PowerManagement.plist in the folder too and deleted them. There seems to be an AutoWake.plist for some users that can be deleted as well. I will put my Mac to sleep now and see if that helped. You can find the files on Macintosh HD/Library/Preferences
- de _ mouseman
I'm having the same problem after installing a new iFixit battery, whenever the laptop is asleep for more than a few hours. I tried an SMC reset and also deleting the plist files, and no joy. The battery is clearly fine and healthy but for some reason it needs wall power to jump it back to life from sleep. Did a clean install fix the problem?
- de Amelia
Hi @ameliapond. Unfortunately not, clean install didn't fix anything. One thing that I've noticed over time is that the time after the MBP needs charger to jump start is longer. For example at the beginning leaving it unplugged overnight would be 100% unable to start in the morning. Now it would usually wake up unless I'm not leaving it for few more extra hours. Still looking for an answer.
- de Martin
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