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Send an alarm to notification daemon if battery percentage become lower than a threshould
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Battery Notifier 🔋

This is a simple application to show current battery status (percentage and charging status). It can also watch the battery continuously and send periodic desktop notifications when the battery goes below a threshold percentage.

Options 👷

  • -v: show application version.

  • -t: battery percentage threshold, below which the battery will be condiered as low and the user will start getting desktop notifications about low battery.

  • -l: battery check interval during low (< threshold) battery.

  • -n: battery check interval during good/normal (> threshold) battery.

  • -w: continuously watch battery level at preset interval. The interval depends on values of '-n' and '-l'.

  • -h: get help message and default values of flags/options.

Creating a Systemd Service to keep watching battery even across reboots

  • Copy the executable to /usr/local/bin/

  • Create a systemd service unit file like below:

$ cat /lib/systemd/system/battery-notifier.service 
Description=System Battery Monitor and Notifier

User=<normal system username but not root>
ExecStart=/usr/local/bin/battery_notifier -w

  • Save the above file and perform the following to always start the battery-notifier service:
$ sudo systemctl daemon-reload
$ sudo systemctl start battery-notifier
$ sudo systemctl enable battery-notifier
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