zackelia/bclm
macOS command-line utility to limit max battery charge observed · 2026-08-28
Health v2 · maintenance only
46/100
- Activity 51
- Release rhythm 8
- Longevity 100
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-03. Adoption (stars, forks) is never an input.
- gap_med: n/a
- age_days: 2264
- days_rel: n/a
- days_push: 299
- n_releases_24m: 0
Adoption not part of the score
2187 stars · 101 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded
BCLM is a Swift command-line utility that reads and writes battery charge level max (BCLM/CHWA) values to the SMC on Intel and Apple silicon Macs. It helps prolong battery health by capping maximum charge, following the 40-80 rule for lithium-ion batteries.
Use cases
- limit macbook max battery charge to 80%
- prolong mac battery health when plugged in all day
- read current battery charge limit from smc
- persist battery charge limit across reboots
- cap charging on apple silicon mac via command line
When to choose
- you want a lightweight CLI to cap battery charge on a Mac
- you leave your Mac plugged in constantly and want to preserve battery health
- you're on macOS 14 or earlier with Intel or Apple silicon hardware
When to avoid
- you're on macOS 15.0 or later, where the tool no longer works due to kernel entitlement enforcement
- you prefer a GUI battery management app
- you need scheduled or dynamic charging control rather than a static limit
Facets
cli-tool · maturity maintenance
developer-tools cli operating-systems hardware developer-tools cli battery-health smc apple-silicon charge-limiting macos
1 source
- readme: https://github.com/zackelia/bclm · fetched 2026-08-28 · 3e9443241530
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| zackelia/bclm | main | 46 |
For agents
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem