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?
Agree that you should probably replace the battery when you can, but you said this is only sometimes happening?
You might want to make sure that the laptop isn’t waking up due to power nap or that there’s not a process keeping it awake if it does.
I don’t have a battery-powered mac sitting around right now, but google should probably end up giving you useful directions for both of those.
I didn’t think Power Nap activated unless you were connected to AC power?
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.