The Victron Orion-Tr Smart DC-DC Battery Charger Non-Isolated range is designed for charging an auxiliary or house battery from a vehicle alternator or another DC source where a common negative between input and output is acceptable.
Non-isolated DC-DC chargers are commonly suited to simpler vehicle, caravan and RV systems where the installation uses a shared negative/ground arrangement. Select the model by matching the source battery voltage, target battery voltage and required charging current.
Important: DC-DC charger selection should be matched to the battery chemistry, alternator output, cable sizing, fuse protection and the overall electrical design.