I was messing with my lemonbar + i3status config (with sway), when I decided to ditch i3status entirely and generate a status line using pure Awk. Battery is calculated from /sys/class/power_supply/BAT0, got workspaces (Material Design Icons) working, have a nice dated, and all colors match Solarized Dark from Vim. Have underlines, highlights etc. setup.
It's so beautiful :)