MattF42
MattF42
/ battery_limit.zsh
Created
May 10, 2025 07:45
— forked from NightMachinery/battery_limit.zsh
A guide on limiting macOS battery charging to at most 80%.
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| # Apple Silicon laptops with firmware > 13.0 have a native charge threshold that does not required any userspace daemon running. | |
| # This native limit works even when the laptop is sleeping or powered off therefore it is preferable to the userspace daemon. | |
| # Nonetheless, it only works with fixed thresholds (80% as upper limit and 70% as lower limit). | |
| # CHWA key is the one used to enable/disable the native limit. 01 = 80% limit, 00 = no limit | |
| ## | |
| typeset -g smc_command="/usr/local/bin/smc" | |
| typeset -g smc_charge_limit_key="CHWA" | |
| typeset -g smc_charge_limit_status_on="01" | |
| typeset -g smc_charge_limit_status_off="00" |