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Macbook Pro battery draining overnight
(i.imgur.com)
I've got a 2.9 GHz 6-Core Intel Core i9 Macbook Pro (yes, the one with the touchbar and the keyboard nobody likes)...
Anyway, it's been working great, aside from this issue which seems to happen on occasion, when I don't keep it plugged in overnight. It will just drain real fast sometimes.
What causes batteries to just drain over the course of an hour or so?
I could be entirely thinking of some other Nap or something; I do know that even on battery it's not impossible for a Mac to wake up and get stuck awake because of a misbehaving app, though I'm probably wrong about which specific feature was responsible.