Helps you keep all your integrated batteries healthy by keeping them between set charge thresholds (Default: 0.2 & 0.8) by giving you a notification when they're not every time it's run. Auto-suspends (default: at 0.05) using systemctl suspend.
(The way I use it)
Build & copy to the bin folder
go build charge-notifier.go
cp charge-notifier $HOME/.local/bin/
Deploy as a systemd user service
cp charge-notifier.service $HOME/.config/systemd/user/
systemctl --user enable --now charge-notifier
This tool was made to scratch a personal itch to keep my laptop's battery health (because it makes liberal use of the safety margins & after more elaborate attempts failed) and to learn a bit about Go and Git.
Full charging generally puts higher strain on Lithium-Ion batteries. This is why it is recommended to be avoided for electric vehicles and many car manufacturers include tools to prevent it. Notebook manufacturers also do this on their more expensive lines. I have found out that many charge controllers from Texas Instruments include a feature to rewrite the maximum charge voltage via SMBus, however while trying around noticed that my chip probably doesn't - and I am not willing to risk much on a chinese-made laptop without a meaningful warranty.