Victron 12/12 30A DC-DC Charger (Isolated)

Victron 12/12 30A DC-DC Charger (Isolated)

Charge your leisure batteries while you drive with the Victron 12/12 30A Isolated DC-DC Charger. Compatible with traditional and smart alternators, the Victron 18A battery-to-battery charger is easy to install and provides reliable power to your leisure batteries.

  • Smart Alternator Compatibility
  • Suitable to 12V starter to 12V leisure battery
  • 30A charging current (360W)
  • Bluetooth connectivity



Victron Energy – Orion-Tr Smart 12/12-30A (360W) Isolated DC-DC charger – ORI121236120

If you are planning long road trips and want to keep your leisure batteries topped up, look no further than the Victron 12/12 18A DC-DC Charger. This smart battery-to-battery charger is compatible with traditional and smart alternators and will charge your leisure batteries as you drive.

The Orion-Tr Smart DC-DC charger is a professional DC to DC adaptive 3-stage charger with built-in Bluetooth.

Battery to battery chargers vs voltage sensing relays

We have a whole blog post that discusses the differences between battery-to-battery and voltage-sensing relays. Your van is probably fitted with a smart alternator if newer than 2015. If so, you must choose a battery-to-battery charger like the Victron 12/12 30A DC-DC Charger to charge your leisure batteries.

VSRs are also not compatible with lithium batteries. So if you plan on using a lithium setup, we recommend choosing the Victron 12/12 30A DC-DC Charger to charge your lithium leisure batteries.

You can charge 12V lead acid, AGM and lithium batteries with the Victron battery to battery Charger. You can connect multiple units in parallel to increase power output and the 18A model will deliver up to 360W of power.

Isolated or non-isolated charger?

We always recommend using an isolated charger in campervan or other builds. The isolation may not always be necessary, but it provides an extra layer of protection for both your van’s circuits and your appliances.

Bluetooth Connectivity

Pair your device with the VictronConnect App and monitor your charging history and settings. The app provides the added benefit of easily checking both your start battery and leisure battery voltages.

Are you looking for a larger charger or a complete system?

Smaller 18A model – Victron 12/12 18A DC-DC Charger 

Complete Victron DC-DC Charger system –  Victron 12/12 18A DC-DC Charger System, Victron 12/12 30A DC-DC Charger System

Additional information

Weight 1.8 kg
Dimensions 18.6 × 13 × 8 cm

Victron Energy

Input Voltage

10 – 17V

Output Voltage

10 – 15V

Continuous Output Current


Max Output Current





5 Years

Continuous Output Power

430W at 25°C

Related Products -