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Not sure if this is related, but I had a similar problem with my MacBook Pro battery draining like crazy overnight or in sleep mode. The problem turned out to be Apple enabling a ping type mode in a update at somepoint so that you can locate your Mac when it’s in sleep mode. As soon as I disabled that (through terminal) the battery went back to draining ~1-2% a night.
Hi, how did you do that? did you just set pmset hibernatemode to 25?

Thanks
 
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