This is a simple package for generating an SVG battery indicator for us in the mode-line or tab-bar. It’s not on MELPA or Gnu Elpa, so you’ll have to install it manually, or using a GitHub helper like straight. See the top right of the screen-shot below:
This package requires Emacs to be built with SVG support. You can test
this by running (image-type-available-p 'svg). If you get t, you
have SVG support.
The indicator takes advantage of display-battery-mode (and the
battery.el library generally). Add
svg-battery-indicator-set-mode-string to battery-update-functions,
and then use battery-display-mode as normal. You might have
something like this in your init.el:
(add-to-list 'battery-update-functions
'svg-battery-indicator-set-mode-string)
(display-battery-mode)
;; To display in the mode-line
(add-to-list 'mode-line-format
'battery-mode-line-string)
;; To display in the tab-bar
(add-to-list 'tab-bar-format
'battery-mode-line-string)The variable svg-battery-indicator-length sets the length of the
indicator. Otherwise all customization is through battery.el. The
indicator uses the threshholds set in battery-load-low and
battery-load-critical, and represents them with the foreground
colours from the faces battery-load-low and battery-load-critical.