bclm — Set a custom charge limit on MacBooks. More information: <https://github.com/zackelia/bclm#usage>.

Set the charge limit to about 80% (for Intel machines, the battery charge level may be slightly lower than the set value)

sudo bclm write {{77}}

Read the current charge limit

bclm read

Keep the charge limit after rebooting/smc reset

sudo bclm persist

Remove the persistent charge limit

sudo bclm unpersist