Description
xVictron Orion-Tr Smart 48/48-8A (380W) Isolated DC-DC Charger
The Orion-Tr Smart 48/48-8A is a galvanically isolated DC-DC charger designed to charge a 48V service battery from a 48V supply, such as a vehicle alternator or another battery bank. It is aimed at professional installers working on commercial vehicles, marine vessels, and off-grid systems where electrical isolation between battery circuits is a technical or safety requirement.
Key Features
- Galvanic isolation between input and output, preventing ground loops and protecting sensitive electronics from voltage spikes or faults on the source circuit.
- 48V input to 48V output at up to 8A continuous, delivering up to 380W of charging power.
- Built-in Bluetooth via the VictronConnect app, allowing configuration, monitoring and firmware updates without additional hardware.
- Adaptive charging algorithm with configurable charge profiles to suit different battery chemistries including lithium and lead-acid variants.
- Engine detection input to prevent excessive discharge of the starter battery by only operating when the alternator is active.
- Remote on/off control via a dedicated terminal, enabling integration with vehicle management systems or external switches.
- Compact, fully enclosed aluminium housing rated for demanding installation environments.
Product Overview
The Orion-Tr Smart range uses a high-frequency transformer to provide true galvanic isolation between the input and output circuits. In a 48V-to-48V application, this matters because the two battery banks may share a chassis ground or be connected to equipment with different earthing references. Without isolation, a direct DC-DC converter would create a common path between the two circuits, which can cause corrosion, interference and fault propagation. The transformer breaks that path entirely.
Configuration is handled through the VictronConnect app over Bluetooth. Installers can set the absorption voltage, float voltage, bulk current limit and tail current threshold to match the target battery chemistry. This makes the unit suitable for charging lithium iron phosphate batteries alongside conventional AGM or gel banks, provided the correct profile is applied. The engine detection input monitors the input voltage to determine whether the alternator is running, and the unit will not draw from the source battery below a configurable threshold, protecting the starter circuit.
At 380W continuous output, the 48/48-8A is suited to applications where moderate charge current is needed between a primary 48V bank and a secondary 48V service or auxiliary bank. It is not a bulk charger for large battery systems but works well as a secondary charging source in dual-bank setups or as the primary DC charging path in smaller off-grid or mobile installations.
Technical Specifications
| Parameter | Value |
| SKU | ORI484838120 |
| Input Voltage | 48V DC |
| Output Voltage | 48V DC |
| Maximum Output Current | 8A |
| Maximum Output Power | 380W |
| Isolation | Galvanic (transformer-based) |
| Connectivity | Bluetooth (VictronConnect) |
| Weight | 1.8 kg |
| GTIN | 8719076065609 |
Applications
- Charging a 48V auxiliary or service battery from a 48V starter or house bank in commercial vehicles and coaches.
- Marine dual-bank systems where galvanic isolation is required to prevent corrosion between isolated battery circuits.
- Off-grid cabins or mobile installations using a 48V primary bank to charge a separate 48V secondary bank.
- Telecom and industrial equipment requiring an isolated 48V supply from an existing 48V bus.
- Retrofit installations where two 48V systems must be electrically separated for safety or regulatory reasons.
What Is Included
- Orion-Tr Smart 48/48-8A isolated DC-DC charger unit
Installation Notes
Installation should be carried out by a qualified electrician or experienced system integrator familiar with 48V DC systems. Ensure correct fusing on both the input and output cables in accordance with the cable cross-section and installation standards. The engine detection and remote on/off terminals must be wired correctly before commissioning to avoid unintended battery drain. Configure the charge profile via VictronConnect before connecting the output to the target battery. For marine installations, follow applicable ABYC or ISO wiring standards for DC systems.
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:
- Non-faulty items returned after 14 days and/or not in their original, undamaged packaging can only be exchanged for store credit - 15% off the items returned.
- 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.