Johannes takes a MultiPlus apart and explains how the inverter charger works. He also discusses some power saving tips. For technical questions see our support page: https://www.victronenergy.com/support or contact your Victron dealer, distributor or installer. You can also have a look at our Victron Community page to see if your question has already been answered there. Or join in the conversation to help others: https://community.victronenergy.com