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zackelia / bclm

macOS command-line utility to limit max battery charge
MIT License
1.79k stars 87 forks source link

Charging threshold ignored when Mac turned off #54

Closed kroeve closed 6 days ago

kroeve commented 3 weeks ago

Hi there,

I have no idea if this is really an issue or if that's just how it is, but once I turn off my Mac the charging threshold is ignored and it will charge to 100%. I installed bclm with brew, set the value to 80 and made it persistent. Charging optimization is also turned off. When it was turned off and once the battery dropped below 80% and I plugged in the charger it worked well, staying at 77% for the whole time, but over night when it was turned off it charged to full. Is there any way to make the threshold work on a turned off Mac? Just coming from Windows, this is the only feature I am really missing on my new machine.

Any help appreciated, even if it is some workaround in any kind of way. Sure, removing the charger over night would be also an option if that's the only workaround!

MacBook Air M3 macOS Sonoma 14.6.1 bclm version 0.1.0

Cheers, Evelin

Agenlone1y2016 commented 1 week ago

So the "turn off" mean Shutdown or let the Mac asleep? If you mean shutdown, maybe you can try do not shutdown your Mac just let it sleep is ok.

dalavitang commented 6 days ago

I think for Apple Silicon Macs, the smc automatically resets when the system power cycles, which will erase the charge limit you set in bclm. So leaving your Mac in sleep mode instead of shutting it down will be the workaround, just as Agenlon1y suggested.

kroeve commented 6 days ago

Thanks everyone!