Description
xVictron Orion-Tr Smart 24/12-30A (360W) Non-Isolated DC-DC Charger
The Victron Orion-Tr Smart 24/12-30A is a non-isolated DC-DC charger designed to charge a 12V service battery from a 24V vehicle or system supply. It is aimed at professional installers working on campervans, motorhomes, marine vessels and off-grid vehicles where two separate battery banks need to be managed independently. The unit delivers up to 30A (360W) of charge current and is controlled via Victron's VictronConnect app over Bluetooth.
Key Features
- 30A maximum output current at 12V, giving a continuous charge power of 360W from a 24V input supply.
- Non-isolated design: input and output share a common ground, which suits most vehicle and marine dual-battery installations where a shared chassis ground is already present.
- Bluetooth built-in: configure charge profiles, monitor status and update firmware directly from the VictronConnect app on iOS or Android, without additional hardware.
- Supports adaptive multi-stage charging (bulk, absorption, float) to suit lead-acid, AGM, gel and lithium (LiFePO4) battery chemistries.
- Engine detection feature: the charger can be configured to start only when the alternator is running, protecting the starter battery from being drained by the service bank.
- Two independent load outputs allow the unit to power additional 12V loads directly, not just charge a battery.
- Wide input voltage range accommodates fluctuating alternator voltages and varying system conditions without shutting down.
- Compatible with the VE.Direct port for integration with Victron GX devices and the Venus OS ecosystem.
Product Overview
The Orion-Tr Smart non-isolated range sits between basic voltage converters and fully isolated DC-DC chargers. Because the input and output share a common negative, the non-isolated version is only suitable where both battery banks share the same chassis or ground reference. In most 12V/24V vehicle and marine installations this is the case, and the non-isolated design allows for a more compact and cost-effective unit without compromising charge performance.
The multi-stage charge algorithm is the key practical advantage over a simple DC-DC converter. A plain converter holds a fixed output voltage, which is not sufficient to properly charge a battery. The Orion-Tr Smart applies a full bulk, absorption and float sequence, meaning the service battery receives a proper charge cycle every time the vehicle is running. Charge parameters are fully adjustable via VictronConnect, including absorption voltage, float voltage and absorption time, so the unit can be tuned precisely to the battery chemistry installed.
The engine detection function monitors input voltage to determine whether the alternator is active. When the input voltage drops below a configurable threshold (indicating the engine has stopped), the charger shuts down automatically. This prevents the service battery from back-feeding into the starter battery and leaving the vehicle unable to start. For lithium service batteries in particular, this behaviour is important because lithium banks can draw high currents that would rapidly deplete a lead-acid starter battery if left connected.
Technical Specifications
| Parameter | Value |
| SKU | ORI241236140 |
| Input Voltage | 24V |
| Output Voltage | 12V |
| Maximum Output Current | 30A |
| Maximum Output Power | 360W |
| Isolation | Non-isolated (common ground) |
| Connectivity | Bluetooth (VictronConnect), VE.Direct |
| Compatible Battery Chemistries | Lead-acid, AGM, Gel, LiFePO4 |
| Weight | 1.8 kg |
| GTIN | 8719076048978 |
Applications
- Charging a 12V leisure or service battery from a 24V vehicle electrical system in motorhomes and campervans.
- Marine dual-battery installations where the main bank is 24V and a 12V service bank powers lighting, pumps or electronics.
- Off-grid vehicles and expedition builds requiring reliable, programmable battery-to-battery charging.
- Truck and HGV auxiliary power systems where a 24V chassis supply needs to charge a separate 12V equipment battery.
- Integration into Victron GX-based monitoring systems via VE.Direct for centralised data logging and control.
What Is Included
- 1x Victron Orion-Tr Smart 24/12-30A (360W) Non-Isolated DC-DC Charger
Installation Notes
This unit is non-isolated and requires a common negative ground between the input (24V) and output (12V) battery banks. Do not use this model in installations where the two battery systems are electrically isolated from one another; use the isolated Orion-Tr Smart variant instead. Wiring must be correctly rated for the maximum current draw and protected with appropriately sized fuses on both the input and output sides. Installation should be carried out by a qualified auto-electrician or marine electrical engineer. For lithium battery installations, verify that the battery BMS is compatible with the charge profile configured in VictronConnect before commissioning.
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.