RemixIconEx.Device.battery_2

You're seeing just the function battery_2, go back to RemixIconEx.Device module for more information.
Link to this function

battery_2(icon_css_class \\ "icon")

iex> Elixir.RemixIconEx.Device.battery_2()
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" class="icon">
  <path d="M11 6H7v14h10V6h-4V4h-2v2zM9 4V3a1 1 0 0 1 1-1h4a1 1 0 0 1 1 1v1h3a1 1 0 0 1 1 1v16a1 1 0 0 1-1 1H6a1 1 0 0 1-1-1V5a1 1 0 0 1 1-1h3z" />
</svg>

example usage

svg.icon {
  width: 96;
  height: 96;
}