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I've had this Mac on Catalina 10.15.5 for a few weeks now and suddenly noticed this battery drain overnight. It went from 60% to 3% two nights ago and happening last night too. After doing some digging I noticed that com.apple.alarm.user-visible-com.apple.remindd.time-alarm seems to be waking up the Mac every few secs. Googling it says that it's related to scheduled reminders which I have a few of but disabling those hasn't helped either. I've attached a snippet of the pmset log below. Basically these set of lines repeat all night, even when the lid is shut. Can someone please help?

2020-06-26 13:30:24 +0530 Sleep                 Entering Sleep state due to 'Maintenance Sleep':TCPKeepAlive=active Using Batt (Charge:100%) 76 secs   
2020-06-26 13:30:29 +0530 Wake Requests         [*process=mDNSResponder request=Maintenance deltaSecs=2562 wakeAt=2020-06-26 14:13:11] [process=powerd request=TCPKATurnOff deltaSecs=40962 wakeAt=2020-06-27 00:53:11] [process=powerd request=UserWake deltaSecs=19771 wakeAt=2020-06-26 19:00:00 info="com.apple.alarm.user-visible-com.apple.remindd.time-alarm,326"]           
2020-06-26 13:30:29 +0530 PM Client Acks        Delays to Sleep notifications: [com.apple.apsd is slow(1965 ms)] [mDNSResponder is slow(5016 ms)]           
2020-06-26 13:31:38 +0530 Kernel Client Acks    Delays to Sleep notifications: [powerd is slow(5020 ms)] [AppleUSBVHCIBCE driver is slow(msg: SetState to 1)(311 ms)] [AppleIntelFramebuffer driver is slow(msg: SetState to 0)(357 ms)] [ATY,Boa driver is slow(msg: SetState to 0)(353 ms)] [RP01 driver is slow(msg: SetState to 0)(1015 ms)]           
2020-06-26 13:31:40 +0530 Kernel Client Acks    Delays to Wake notifications: [RP17 driver is slow(msg: SetState to 2)(738 ms)] [UPSB driver is slow(msg: SetState to 2)(955 ms)] [UPSB driver is slow(msg: SetState to 2)(953 ms)] [PEG0 driver is slow(msg: SetState to 2)(498 ms)]

I also noticed that certain scheduled tasks are listed multiple times in the System Information > Power > Next Scheduled Events?

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Try to drop powernap first, sounds like a culprit to me. I mean try to cycle it off/on and rebooting if you really use it otherwise make sure it's off

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  • I don't use PowerNap and have it off for both battery and Power Adapter. Every log entry seems to reference this process com.apple.alarm.user-visible-com.apple.remindd.time-alarm which is apparently related to the reminders app.
    – radicalgel
    Jun 28 '20 at 11:28
  • I got it, try sudoing pmset to defaults and then disable powernap again
    – PJJ
    Jun 28 '20 at 11:32
  • What would the command be to restore to defaults? Wouldn't the restore defaults in Energy Saver do the same thing?
    – radicalgel
    Jun 28 '20 at 11:39
  • Try sudo pmset and take a look at man pmset
    – PJJ
    Jun 28 '20 at 11:41
  • Issue persists even with PowerNap disabled
    – radicalgel
    Jun 29 '20 at 8:31

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