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zackelia / bclm

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

Display correct charge indicator LED on Magsafe charger #5

Closed godly-devotion closed 3 years ago

godly-devotion commented 3 years ago

On older MacBooks that use the MagSafe charger, the LED turns green if it has finished charging. Just changing the BCLM value does not influence the MagSafe LED color. There is a value in the SMC called BFCL (Battery Final Charge Level) that holds the value for when the LED color should change to green. By default, for the machines that have this value, the value is 5 less than the BCLM. So for example, if you were to set the BCLM to 65%, then you would set the BFCL to 60%. This follows what Apple does because its default value is 5f, or 95%. Please add this option for changing this value as well.

PS I've added this ability in https://github.com/godly-devotion/charge-limiter as well for reference.

zackelia commented 3 years ago

@godly-devotion Thanks for letting me know about this, I was wondering if this option existed! It is now default behavior in bclm v0.0.3 to set the BFCL value accordingly.