I built Watti because my super old mac’s battery is in terrible shape. I need to know often how many watts I am getting from a certain charger. My battery will puke even on the best chargers, but I want to know still what my current input is.
I found a cool api surfaced by Apple that allows you to get the familyCode of a charger, so we can name chargers.
For other old mac users, you will likely appreciate the TTL concept, ie, if unplugged now, how long your computer will last before blacking out.
I thought I would share with others who might be having the same issue as I am. But the expectation is that no one will find or use this. I may resort to just installing this on my friend’s machines. ;)
Ping me with questions —
Happy hacking,
Menu bar app that shows power/wattage details on macOS.
Sponsored by The Good Project — contact reif@thegoodproject.net.
- Download
Watti.dmg(recommended):
https://github.com/reif-is-a-foofie/Watti/releases/latest/download/Watti.dmg - Double‑click it to open, then drag
Watti.apponto Applications. - Open Watti from Applications.
- If macOS blocks it, open System Settings → Privacy & Security, then click Open Anyway and try again.
- Quick link (may not be clickable in GitHub; copy/paste into Safari):
x-apple.systempreferences:com.apple.preference.security?Privacy - Or run in Terminal:
open "x-apple.systempreferences:com.apple.preference.security?Privacy"
- Quick link (may not be clickable in GitHub; copy/paste into Safari):
Archives are also attached to each release: Watti-macos.zip and Watti-macos.tar.gz.
A .zip of the same app is also attached to each release if you prefer that format.
./scripts/make_icon.sh
./build.sh
open build/Watti.appPush a tag like v1.0.0 and GitHub Actions will attach Watti.dmg, Watti-macos.tar.gz, and Watti-macos.zip to the release.