Description
xOrion-Tr Smart 12/12-18A (220W) Isolated DC-DC Charger — ORI121222120
The Victron Orion-Tr Smart 12/12-18A is a galvanically isolated DC-DC battery-to-battery charger designed for 12V systems requiring up to 18A of charge current at 220W. It is built for vehicles, boats and off-grid installations where the starter battery and leisure or auxiliary battery must be kept electrically separate. Bluetooth connectivity allows configuration and monitoring without additional hardware.
Key Features
- Galvanic isolation between input and output prevents ground loops and protects sensitive electronics in dual-battery systems.
- 18A output current at 12V delivers up to 220W of charge power to the auxiliary battery.
- Built-in Bluetooth with the VictronConnect app allows full configuration, real-time monitoring and firmware updates from a smartphone or tablet.
- Adaptive 4-stage charging algorithm (bulk, absorption, float, storage) ensures correct charge management for lead-acid and lithium battery chemistries.
- Engine detection feature prevents discharging the starter battery by monitoring input voltage and only charging when the alternator is running.
- Wide input voltage range accommodates fluctuating alternator output and varying system voltages.
- Compact and lightweight at 1.3 kg, suitable for installation in confined spaces in vehicles and marine applications.
Product Overview
The Orion-Tr Smart range uses galvanic isolation to create a complete electrical barrier between the vehicle's starter circuit and the auxiliary battery bank. This is particularly important in modern vehicles with smart alternators, where a direct connection between batteries can cause charging faults or damage to the vehicle's battery management system. The Orion-Tr Smart handles the conversion independently, drawing from the alternator output and delivering a correctly profiled charge to the secondary battery.
Configuration is handled entirely through the VictronConnect app over Bluetooth. Charge voltage, absorption time, float voltage and battery type can all be set without physical switches or a laptop. The engine detection function uses input voltage thresholds to determine when the alternator is active, avoiding any drain on the starter battery when the engine is off. This makes the unit suitable for drop-in installation in campervans, motorhomes, narrowboats and similar dual-battery setups without requiring an additional battery-to-battery relay or voltage-sensing relay.
The isolated design also makes it appropriate for marine installations where galvanic corrosion from stray currents is a concern. The unit supports both lead-acid variants (AGM, gel, flooded) and lithium (LiFePO4) battery banks on the output side, with charge profiles configurable per chemistry.
Technical Specifications
| Parameter | Value |
| SKU | ORI121222120 |
| Input Voltage (nominal) | 12V DC |
| Output Voltage (nominal) | 12V DC |
| Output Current (max) | 18A |
| Power Output (max) | 220W |
| Isolation | Galvanic isolation |
| Connectivity | Bluetooth (VictronConnect) |
| Battery Compatibility | Lead-acid (AGM, gel, flooded), LiFePO4 |
| Weight | 1.3 kg |
| GTIN | 8719076046066 |
Applications
- Campervans and motorhomes with split charging requirements between starter and leisure batteries.
- Narrowboats and canal boats where galvanic isolation is required to prevent corrosion from stray currents.
- Marine vessels with separate engine start and house battery banks.
- Off-grid vehicles and expedition builds using lithium auxiliary batteries alongside a standard lead-acid starter battery.
- Trucks and commercial vehicles requiring isolated auxiliary charging from the main vehicle electrical system.
What Is Included
- 1x Victron Orion-Tr Smart 12/12-18A (220W) Isolated DC-DC Charger
Installation Notes
Installation should be carried out by a qualified electrician or experienced marine/vehicle electrician familiar with DC systems. Correct cable sizing and fusing on both input and output circuits is essential at 18A and 220W. For marine installations, follow NMEA or RYA wiring guidelines as applicable. The unit must be mounted in a ventilated location away from direct water ingress. Configure the battery chemistry and charge profile via VictronConnect before commissioning to ensure compatibility with the auxiliary battery type in use.
Return Policy
xWe offer a 14-day, no-quibble returns or replacement policy because we want you to be totally satisfied with your purchase.
If you are unhappy in any way with your purchase, you can return it for a refund or a replacement, as long as you return it in the same condition as it arrived (original/undamaged packaging and product) and within 30 days of receiving it. We will pay for your return postage on a faulty item as long as you send it using Royal Mail 2nd class recorded delivery (for EU or International Shipments, you have to use our UPS account, we will provide you with a return label)
Please keep in mind the following:
- Items returned within 14 days but not in their original and undamaged packaging will also incur a -15% charge per package.
- If you return an item that doesn't adhere to our returns procedure or doesn't include a returns form, you may be liable for a £10 administration fee
- Individual items from a bundle can't be returned, refunded or exchanged. If you want a refund/credit/exchange for a bundle, all items must be returned to us.
Before you return your item, please make sure that:
- You follow our returns process (outlined below)
- The goods and packaging are undamaged
IMPORTANT: We need to be able to identify an item with your order. We can only do this if you follow our returns process. Please do not send us items back that do not follow this process as they cannot be identified properly and will not be replaced or refunded.
What delivery method do I need to use when returning an item?
You must send the goods back to us via Royal Mail 2nd class recorded delivery. Refunds on faulty items returned are reimbursed within 5 working days.
Can I return just one item from multiple purchases?
Yes. Once you start the returns process you will go to a page that will allow you to choose which items you want to be replaced or refunded.
Returning faulty goods
If your item is faulty, you need to follow the returns policy, where you will be able to state that it’s faulty. The product will then arrive at our warehouse for testing.
If your purchase is not within 14 days
You can still exchange your item for a different product or for credit to use on the Voltacon Solar or Ledison-led-lights.co.uk websites (-15% from the credit amount).
Returns outside of the 14-day period do not qualify for the free returns policy.
Returning an item within the warranty
If you have a warranty and want to return a faulty item, you just need to follow our standard returns process. When we receive your item, we will then check that it’s within warranty and for any faults before arranging a replacement.