
Victron Orion-Tr Smart Isolated DC-DC Charger
The Victron Orion-Tr Smart Isolated is a proper DC-DC battery charger with Bluetooth. Use it to charge a second (house) battery from your vehicle's alternator, or from one battery bank to another, with the right multi-stage charge for AGM, gel or lithium. Unlike a simple isolator or VSR, it boosts and regulates the charge, so your auxiliary battery reaches a full charge even with long cable runs or smart alternators. The input and output are galvanically isolated, which suits vehicles and boats with separate negatives or where ground loops must be avoided. Choosing a model Pick your input voltage (start battery / alternator), output voltage (house battery), then the charge current. 12V to 12V 30A is the most common choice for caravans, campers and 4WDs. Key features Adaptive 3-stage charging with lithium (LiFePO4) and lead-acid presets. Smart alternator compatible: engine-running detection switches charging on and off automatically, with no ignition wire needed. Bluetooth and VictronConnect for setup, live readings and firmware updates. Galvanic isolation between input and output. Also works as a regulated power supply (charger mode can be switched off). Remote on/off for a switch or lithium BMS control. Parallel connection for more charge current. Not sure if you need isolated? See the Orion-Tr Smart Non-isolated (common negative, lower cost) or the high-current Orion XS.
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