Victron Battery indicator panel:
The battery indicator panel shows the state of charge of the battery. It is an accessory for the Blue Smart IP65 Chargers. Suitable for 12V lead acid batteries (flooded, GEL, AGM).
Manual:
https://www.victronenergy.com.au/upload/documents/Manual-Battery-indicator-panel-&-Indicator-Eyelet-EN-NL-FR-DE-IT-ES-SE-TR.pdf
