Thank you frame_of_mind, I've just made your suggested changes. Both my wife and I have iPhones with Bluetooth on all the time, and Mac Minis with BT keyboards and mice, so from the desk to the car to the home-office it is always near another BT device.
I've been going crazy with this because most days I'll sleep my computer before leaving work and won't need it until I get back the next morning, only to discover I have a dead battery and can't work for 10 minutes while it charges enough to boot.
As a side note, I did the pmset -a standbydelay 600000 and pmset -b standbydelay 600000, but today while driving to work it was doing the 'wake every minute' crap again. I turned on my computer to discover it had still drained from 100% to 5% battery. So for me the standbydelay fix doesn't even take care of it as a temporary fix.
Here's the last little test I did before going to work.
Mar 14 06:31:02 localhost kernel[0] <Debug>: Wake reason: EC.ACAttach (Maintenance)
Mar 14 06:42:14 localhost kernel[0] <Debug>: Wake reason: EC.ACDetach (Maintenance)
Mar 14 07:02:45 localhost kernel[0] <Debug>: Wake reason: EC.SleepTimer (SleepTimer)
Mar 14 07:03:30 localhost kernel[0] <Debug>: Wake reason: ?
There are dozens of ? reasons before and after these changes. While it was on AC power for about 10 minutes it did not have a problem with the every minute wake. Then after AC power was removed for about 10 minutes the problem started again. Both AC power and battery power pmset configs have 600000 for the standbydelay attribute, so I'm not sure why it is having the dark wake problem on battery but not on AC power.
$ pmset -g custom
Battery Power:
lidwake 1
autopoweroff 1
autopoweroffdelay 14400
standbydelay 600000
standby 1
ttyskeepawake 1
hibernatemode 3
darkwakes 0
hibernatefile /var/vm/sleepimage
displaysleep 2
sleep 1
acwake 0
halfdim 1
lessbright 1
disksleep 10
AC Power:
lidwake 1
autopoweroff 1
autopoweroffdelay 14400
standbydelay 600000
standby 1
ttyskeepawake 1
hibernatemode 3
darkwakes 1
hibernatefile /var/vm/sleepimage
womp 1
displaysleep 10
networkoversleep 0
sleep 1
acwake 0
halfdim 1
disksleep 10
Edit: BTW, I'm running a late 2013 13" rMBP. Dropbox and Google drive were both disabled during this testing. Parallels Desktop 9 was completely shutdown as well.
Message was edited by: falterego - computer specs