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The Orion-Tr Smart DC-DC charger is a professional DC to DC adaptive 3-stage charger with built-in Bluetooth. Suitable for high temperatures up to 55°C with a full rated output up to 40°C. For use in dual battery systems in vehicles or on boats where the (smart) alternator and the start battery are used to charge the service battery. The unit can be monitored and programmed via Bluetooth and can be remotely controlled via a remote on/off switch and has an engine running detection mechanism. The Orion Tr-Smart charger can be used in 12V or 24V systems and is suitable for both lead-acid and lithium batteries. Models are available up to 400W and unlimited multiple units can be connected in parallel to increase output power.


Victron DC-DC Chargers: Non-Isolated vs Isolated:

The main difference with an isolated DC-DC charger is the connection to each battery as there is only one negative connection to the battery. Plus, there is no internal connection between the negatives in the battery. Some systems require an isolated DC to DC charger, this can be some of the reasons:


  • Typically, marine application with limited corrosion
  • Decrease noise from one battery system that will affect another battery system


Either unit can be used for systems that don’t require isolation, but the non-isolated requires one less wire to be installed. 

One example of a non-isolated system is an automotive system, such as both batteries are negative and connected to the chassis of a vehicle. The system is non-isolated but either unit will suit. 
No Solar Regulator in the DC-DC Charger:
Victron have chosen to separate the charger and the solar regulators, these are the advantages:


  • You can choose the correct solar regulator to match your panels with the best efficiency for the solar charging
  • The solar can be charging into the battery system simultaneously with the onboard vehicle charging
  • Without a solar regulator, the DC-DC charger will stay cheaper



Output Current Rating (Amps)30.0 Amps
Standby CurrentLess than 1 mA
Operating Temperature Range-20 to +55°C (derate 3% per °C above 40°C)
HumidityMax. 95% non-condensing
Dimensions (LxWxH) mm12V input and/or 12V output models: 130 x 186 x 80 mm (5.1 x 7.3 x 3.2 inch) Other models: 130 x 186 x 70 mm (5.1 x 7.3 x 2.8 inch)
Net Weight (kg)12.0 Kg
Under Voltage Alarm14V
Input Voltage20-35V
Manufacturers Warranty5 Years

Victron Orion-Tr Smart 12/12-30A (360W) DC-DC charger

SKU: ORI121236120 1
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