Battery Drain on Standby

xb2003

macrumors 6502
Original poster
Jan 18, 2016
369
96
MO
Over the last couple of weeks my MacBook Pro has been draining the battery on standby. Today I unplugged it at about 9:00 AM and by 5:00 PM it was down 25%. Usually it's in my backpack all week as I really only use it for classes, and I charge it once or twice a week. Has anybody experienced something similar to this lately? Or maybe knows of a particular software that might be doing this?

2015 MacBook Pro 13 3.1/16/512
MacOS 10.14.3
Battery Cycles: 401

Thanks!
 

PROFESS0R

macrumors 6502
Jul 30, 2017
252
219
If you do not want it to discharge, turn it off. 25% is more than I would expect to see, but the fix is relatively easy; turn it off.

Joe
 

Howard2k

macrumors 68030
Mar 10, 2016
2,732
1,983
Use Activity Monitor to check if any apps are preventing sleep.

While the MacBook is unplugged from the power, run pmset -g from terminal and post the results.
 

BuCkDoG

macrumors 6502a
Jun 13, 2013
535
178
I've heard others complain about this too. I wonder if there is a known bug within the latest firmware causing the battery drain etc.
 

xb2003

macrumors 6502
Original poster
Jan 18, 2016
369
96
MO
I've heard others complain about this too. I wonder if there is a known bug within the latest firmware causing the battery drain etc.
Thanks what I was kind of wondering. But I actually thought of the SMC reset about 20 minutes after making this post, and that seems to have fixed it. It's only been 3 hours, but I'm still at 100%.

I don't know why I didn't think of SMC before. Thanks guys
 
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