Just a simple skin for this mod:
BatteryIndicator by LetsPlayOrDy

All credit goes to LetsPlayOrDy for his mod.

To use this skin, please download and install his mod first, then replace these files / folders with mine:
- BatteryIndicator.xml
- battery_textures (folder)

Battery Indicator is located in top right corner (screenshots).
To show the battery indicator ingame, press B.