Description
xOrion-Tr Smart 12/12-30A (360W) Isolated DC-DC Charger — ORI121236120
The Victron Orion-Tr Smart 12/12-30A is a galvanically isolated DC-DC battery-to-battery charger designed for 12V systems requiring up to 30A (360W) of charge current. It is built for vehicles, boats and off-grid installations where a starter battery and a service battery must be kept electrically separate. The unit is Bluetooth-enabled and integrates with the VictronConnect app for configuration and monitoring.
Key Features
- Galvanic isolation between input and output eliminates ground loop issues and protects sensitive electronics on both battery banks.
- 30A output current at 12V delivers up to 360W of continuous charge power to the service battery.
- Built-in Bluetooth allows full configuration and real-time monitoring via the VictronConnect app on iOS and Android, without additional hardware.
- Adaptive multi-stage charging algorithm (bulk, absorption, float) ensures correct charge profiles for lead-acid and lithium battery chemistries.
- Engine detection via input voltage threshold prevents discharging the starter battery when the alternator is not running.
- Wide input voltage range accommodates real-world alternator voltage fluctuations and varying battery states.
- Compact, sealed enclosure rated for installation in engine bays and other demanding environments.
Product Overview
The Orion-Tr Smart uses a high-frequency transformer to provide full galvanic isolation between the input (alternator/starter battery) and output (service/leisure battery). This is particularly important in marine and vehicle installations where shared grounds can cause corrosion, interference or safety issues. The isolation also means the unit can be used to charge a battery bank at a different voltage potential without risk of cross-circuit faults.
Unlike simple voltage-sensitive relays (VSRs) or DC-DC converters without charge management, the Orion-Tr Smart applies a proper multi-stage charge profile. This matters for lithium batteries in particular, where a flat absorption stage and accurate voltage thresholds are required to avoid undercharging or triggering battery management system shutdowns. The engine detection feature uses the input voltage level to determine whether the alternator is active, preventing the unit from drawing down the starter battery when the engine is off.
VictronConnect integration gives installers full control over charge voltages, absorption time, battery type presets and engine detection thresholds. All settings are adjustable over Bluetooth without opening the unit or accessing the installation location, which is a practical advantage in tight or awkward installations.
Technical Specifications
| Parameter | Value |
| SKU | ORI121236120 |
| Input Voltage (nominal) | 12V DC |
| Output Voltage (nominal) | 12V DC |
| Output Current (max) | 30A |
| Output Power (max) | 360W |
| Galvanic Isolation | Yes |
| Bluetooth | Built-in (VictronConnect) |
| Weight | 1.8 kg |
| GTIN | 8719076047698 |
Applications
- Charging a lithium leisure battery from a vehicle alternator while keeping the starter battery isolated.
- Marine dual-battery installations where galvanic isolation is required to prevent corrosion and ground loops.
- Motorhome and campervan builds with separate starter and habitation battery banks.
- Off-grid vehicles and expedition rigs where reliable service battery charging from the alternator is critical.
- Commercial vehicle auxiliary power systems requiring a managed, isolated charge source.
What Is Included
- 1x Victron Orion-Tr Smart 12/12-30A Isolated DC-DC Charger (ORI121236120)
Installation Notes
Installation should be carried out by a qualified electrician or experienced marine/vehicle electrician familiar with DC power systems. Ensure correct cable sizing and fusing on both the input and output sides in line with the 30A output rating. The unit must be mounted in a well-ventilated location to allow adequate heat dissipation. For lithium battery installations, verify that the battery management system (BMS) charge parameters are compatible with the configured charge profile before commissioning. Engine detection thresholds should be set via VictronConnect prior to first 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.