My Macbook Pro 15, 2017 loses full charge (from 100% to 0%) during a 9 hr SLEEP duration.

Running this:

pmset -g

Throws the following result:

System-wide power settings:
Currently in use:
 lidwake              1
 autopoweroff         1
 standbydelayhigh     86400
 autopoweroffdelay    259200
 standbydelaylow      10800
 standby              1
 proximitywake        1
 ttyskeepawake        1
 hibernatemode        3
 powernap             0
 gpuswitch            2
 hibernatefile        /var/vm/sleepimage
 highstandbythreshold 50
 displaysleep         15
 womp                 0
 networkoversleep     0
 sleep                1 (sleep prevented by apsd)
 tcpkeepalive         1
 halfdim              1
 acwake               0

So far I have tried the following:

  1. Reinstalled MacOS
  2. Replaced Battery + Top cover + Keyboard + Trackpad, as a part of the Apple quality program.

Nothing has worked. Using the laptop is a pain. I can't leave it in sleep mode overnight, always requires shutting down.


2021-07-07 10:47:36.690749+0530  localhost kernel[0]: (AppleACPIPlatform) AppleACPIPlatformPower Wake reason: EC.DarkPME (Maintenance)
2021-07-07 10:47:36.690752+0530  localhost kernel[0]: (AppleACPIPlatform) AppleACPIPlatformPower Wake reason: EC.DarkPME (Maintenance)
2021-07-07 10:47:41.098745+0530  localhost kernel[0]: (AppleTopCaseHIDEventDriver) [HID] [ATC] AppleDeviceManagementHIDEventService::processWakeReason Wake reason: Host (0x01)

Wake reason: EC.DarkPME runs all night, non-stop!

Appreciate any help/fixes.

  • Sleep still uses power to maintain the RAM contents. You need to use hibernation instead. To enable hybernation you need to use the pmset command to set hibernatemode to 25. Right now it's 3 - the RAM contents are saved to disk but the machine is still powered Jul 7, 2021 at 6:45
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    @PanagiotisKanavos It does not use 100% of a new battery in 9 hours just to maintain RAM contents, this is misinformation.
    – Ant
    Jul 7, 2021 at 6:49
  • @Ant is it? Are you at the poster's home or office, looking at their machine? With a thermometer (temperature affects batteries)? Macs have problems with their batteries, just like all laptops. I think if I google I'll even find a battery recall in the news. I've encountered far worse battery problems: In our dev shop, out of 50 Macbook Pro 2018 we had several instances where the battery got so swollen the lid couldn't close. We ended up keeping our Macs open which caused the next problem - failing butterfly keyboards due to dirt Jul 7, 2021 at 6:55
  • @Ant as for a Macbook eating up lots of battery during sleep, mine does. Definitely not 100%, but it's not trivial either. A "new" battery may have been sitting at some warehouse for years, especially if it's for an old model. Batteries degrade even when not used which is why they have expiration dates. We don't know the expiration date of the new battery Jul 7, 2021 at 6:59
  • 1
    @PanagiotisKanavos Thanks for your response. I have used this laptop in sleep mode for days without more than 1-2% drop in battery charge. 100% drain in sleep mode overnight is unheard of. The reason I got the battery replaced was complete drain, even after replacing it follows the same trend. Jul 7, 2021 at 7:00

1 Answer 1


I have the same problem. Apple engineers think it's the logic part that doesn't work properly.

There are some solutions editing plist file on the internet, but even if I turn off SIP, I didn't manage to make any change to the system plist file. Try taking it to Genius Bar and change the logic part.

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