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Victron 24V to 12V Orion-Tr Smart 24/12-20A Isolated DC-DC Charger

24V to 12V Isolated DC-DC Charger with Bluetooth | 20A Continuous, 25A Peak


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Top-down view of a blue Victron Orion-Tr Smart 24/12-20A isolated DC-DC charger

Victron 24V to 12V Orion-Tr Smart 24/12-20A Isolated DC-DC Charger

DESCRIPTION

Victron 24V to 12V Orion-Tr Smart Isolated DC-DC Charger: Intelligent Power Conversion for Dual-Battery Systems

Efficient 24V to 12V DC-DC Charging with Adaptive 3-Stage Algorithm and Bluetooth Control

The Victron Orion-Tr Smart Isolated DC-DC Charger delivers precise, regulated power conversion from a 24V alternator or battery bank to a 12V auxiliary system. Designed for vehicles, marine vessels, and off-grid installations, this charger solves the common challenge of safely stepping down voltage while maintaining battery health. Unlike basic converters that risk overcharging or undercharging, the Orion-Tr Smart uses an adaptive 3-stage charge algorithm (Bulk, Absorption, Float) to extend battery life and ensure reliable starts every time.

With 20A of continuous current and a peak output of 25A for short surges, it handles demanding loads such as fridge compressors, lighting, and communication equipment. The integrated Bluetooth Smart interface allows full configuration and monitoring via the VictronConnect app, eliminating the need for additional displays or complex wiring. This isolated design provides galvanic isolation up to 200V DC between input, output, and case, protecting sensitive electronics from ground loops and voltage spikes—a critical advantage in mixed-voltage systems.

Smart Alternator Compatibility and Programmable Charge Profiles

Modern vehicles with Euro 5/6 compliant smart alternators often output variable voltage, which can confuse standard DC-DC chargers. The Orion-Tr Smart features an engine detection mechanism that prevents unwanted discharge of the starter battery when the engine is off. You can program custom charge profiles to match your battery chemistry—whether AGM, Gel, Flooded, or Lithium—ensuring optimal charging without manual intervention. The adjustable output voltage range of 10-15V provides flexibility for sensitive loads or specific battery requirements.

Robust Design for Harsh Australian Conditions

Built to withstand the rigours of outback travel and coastal marine environments, the Orion-Tr Smart features an IP43 protection rating when installed with screw terminals facing downward. The extruded aluminium heatsink provides efficient passive cooling, allowing continuous operation at full rated power up to 40°C ambient temperature. Screw terminals accept cables up to 16 mm² (AWG6), ensuring low-resistance connections and minimal voltage drop over long cable runs. The compact footprint of 130 x 186 x 70 mm and weight of 1.3 kg simplifies installation in tight spaces such as under-bonnet, behind panels, or in battery compartments.

Key Features

  • Adaptive 3-stage charge algorithm with programmable battery presets for AGM, Gel, Flooded, and Lithium
  • Bluetooth Smart for wireless monitoring, configuration, and firmware updates via VictronConnect app
  • Galvanic isolation (200V DC) eliminates ground loop interference and protects against voltage transients
  • Engine detection prevents starter battery drain when the alternator is not running
  • Remote on/off terminal for integration with battery management systems or manual switches
  • Parallel operation supported for higher current requirements
  • Wide input voltage range of 16-35V accommodates voltage fluctuations in 24V systems
  • Short circuit, over-temperature, and reverse polarity protection

Applications

This charger is ideal for powering 12V house batteries in trucks, buses, motorhomes, and boats with 24V electrical systems. It also suits off-grid solar installations where a 24V battery bank needs to supply 12V loads, or in industrial equipment requiring stable 12V power from a 24V source. The isolated design makes it safe for use in systems with sensitive communication or navigation electronics.

Whether you're upgrading a dual-battery system in a 4WD, fitting out a marine electronics suite, or building a remote power system, the Victron Orion-Tr Smart provides the reliability and intelligence needed for critical power conversion. Order your Victron Orion-Tr Smart Isolated DC-DC Charger today and experience seamless 24V to 12V power management with full app control.

SPECIFICATIONS

Specifications

Model Orion-Tr Smart DC-DC Charger Isolated 24/12-20 (240W)
Input voltage range (1) 16-35V
Under voltage shut down 14V
Under voltage restart 15V
Nominal output voltage 12.2V
Output voltage adjust range 10-15V
Output voltage tolerance +/- 0,2V
Output noise 2mV rms
Cont. output current at nominal output voltage and 40°C 20A
Maximum output current (10 s) at nominal output voltage 25A
Short circuit output current 50A
Cont. output power at 25°C 300W
Cont. output power at 40°C 240W
Efficiency 88%
No load input current < 100mA
Standby current Less than 1mA
Galvanic isolation 200V dc between input, output and case
Operating temperature range -20 to +55°C (derate 3% per °C above 40°C)
Humidity Max. 95% non-condensing
DC connection Screw terminals
Maximum cable cross-section 16 mm² AWG6
Weight 1.3 kg (3 lb)
Dimensions hxwxd 130 x 186 x 70 mm (5.1 x 7.3 x 2.8 inch)
Standards: Safety Emission Immunity Automotive Directive EN 60950, EN 61000-6-3, EN 55014-1, EN 61000-6-2, EN 61000-6-1, EN 55014-2, ECE R10-5
  1. If set to nominal or lower than nominal, the output voltage will remain stable within the specified input voltage range (buck-boost function). If the output voltage is set higher than the nominal by a certain percentage, the minimum input voltage at which the output voltage remains stable (does not decrease) increases by the same percentage.

Note 1) The VictronConnect App will not display current in or current out.

Note 2) The Orion-Tr Smart Charger is not equipped with a VE.Direct port.


SKU: VIC-ORI241224120
Barcode: 8719076046080
Model #: ORI241224120
MPN: ORI241224120

WARRANTY

Victron Energy Limited Warranty Policy

Direct Customers

Victron Energy provides the following warranty to any direct customer (OEM, distributor or dealer) in relation to any products that Victron Energy has directly sold to the direct customer. This warranty is not an end-user warranty between Victron Energy and an end-user, and end-users shall not have any rights or remedies under this limited warranty towards Victron Energy directly. The direct customer shall, in turn, ensure that the end-user is provided with a warranty identical to this warranty, subject to applicable local mandatory law.

End-Users

Victron Energy may also provide a warranty directly to end-users, in which case the below warranty conditions equally apply to such warranty. In that case, end-users shall claim their warranty at their place of purchase or through the original direct customer of Victron, which can be found through the support section on Victron’s website https://www.victronenergy.com/support. Hence, the direct customer shall on behalf of Victron Energy deal with any warranty claims made under any warranty that Victron Energy may provide directly to end-users. This support section on Victron’s website https://www.victronenergy.com/support will provide further guidance on the procedure for end-users to make a claim under this limited warranty.

If the end-user is a consumer – a natural person who is acting for purposes which are outside that person's trade, business, craft or profession – the following applies. The rights and remedies granted to the consumer under this limited warranty are without prejudice to the consumer’s statutory rights. Furthermore, the consumer is entitled by law to remedies from the seller free of charge in the event of a lack of conformity of the goods (such as repair, replacement, price reduction or rescission), which remedies are not affected by this limited warranty.

Warranty

Victron Energy warrants its products to be free from defects in workmanship and materials for a period of 5 years from the date of purchase by the original end-user, with a maximum of 66 months from the Victron Energy invoice date. Exceptions on this are: lead-acid batteries: 2 years from date of purchase by the original end-user, with a maximum of 30 months from the Victron Energy invoice date, Lithium batteries: 3 years from date of purchase by the original end-user, with a maximum of 42 months from the Victron Energy invoice date. In addition to this, proof of correct battery usage is required when making a battery warranty claim.

For a 10% surcharge on the current net price for products that came with a 5-year warranty, an additional 5 years of warranty can be purchased by Victron’s direct customers, bringing the total warranty to 10 years. Warranty extensions need to be applied for ultimately one year before the expiration of the original term. Victron may ask proof that the product was still functional at the time of purchase of the extended warranty.

During the warranty period, Victron Energy will, at its discretion, repair, replace or (partly) credit the defective product free of charge. The warranty does not include performing or reimbursing de‐installation, transportation, and re‐installation.

This warranty will be considered void if the unit has suffered any physical damage or alteration, either internally or externally, and does not cover damages arising from improper use like:

  • Reversed battery polarity.
  • Inadequate connection.
  • Mechanical shock or deformation.
  • Contact with liquid or oxidation by condensation.
  • Use in an inappropriate environment (dust, corrosive vapour, humidity, high temperature, biological infestation, etc.).
  • Breakage or damage due to lightning.
  • Connection terminals and screws destroyed or other damages, like overheating, due to insufficient tightening.
  • For any electronic breakage except due to lightning (reverse polarity, over‐voltage due to external cause), the state of the internal control diode and/or the input/output X and Y capacitors determine the warranty.

This warranty will not apply where the product has been misused, neglected, improperly installed, or repaired by anyone other than Victron Energy or one of its authorized Repair Centres. In order to qualify for the warranty, the product must not be disassembled or modified.

This warranty and our warranty obligations thereunder (repair, replacement or credit) are the direct customer’s and, if applicable, the end-user’s sole rights and remedies and our sole obligations with respect to any defective and/or non-conforming product or breach of warranty and is subject to and without prejudice to the limitations of liability in this warranty.

Victron Energy shall not be liable for damages, whether direct, incidental, special, or consequential, even caused by negligence or fault.

As a product requires service, it must be brought back to the place of purchase. In case no contact can be made with the merchant, or if he is either unable or not allowed to provide service, direct contact should be made with Victron Energy through the support section on Victron’s website.

In case Victron Energy replaces a product, it will own the replaced product. Victron Energy owns all parts removed from repaired products. Victron Energy uses new or reconditioned parts made by various manufacturers when performing warranty repairs or building replacement products.

If Victron Energy repairs or replaces a part of a product, its warranty term is not extended: the warranty will apply for the remaining term of the original warranty term. For example, if Victron Energy replaces a product with a 5-year warranty after 3 years, the warranty of this product will apply for another 2 years, with a minimum of 6 months.

All remedies and the measure for damages are limited to the above. Victron Energy shall in no event be liable for consequential, incidental, contingent or special damages, even if having been advised of the probability of such damages.

The foregoing limited warranty provided by Victron Energy is in lieu of any other warranties, express or implied arising by law, course of dealing, course of performance, usage of trade or otherwise, of any kind whatsoever including, without limitation, warranties of merchantability or fitness for a particular purpose, with respect to any product. The above is without prejudice to the arrangement for consumers detailed above.

Life Support Policy

As a general policy, Victron Energy does not recommend the use of any of its products in life support applications where failure or malfunction of Victron Energy's product can be reasonably expected to cause the failure of the life support device or to significantly affect its safety or effectiveness. Victron Energy does not recommend the use of any of its products in direct patient care. Victron Energy will not knowingly sell its products for use in such applications unless it receives in writing assurances satisfactory to Victron Energy that the risks of injury or damage have been minimized, the customer assumes all such risks, and the liability of Victron Energy is adequately protected under the circumstances.

Warranty on repairs for products outside their warranty period

The warranty period on products that are outside their warranty period and have been repaired by Victron Energy or one of the Victron Energy Repair centres is six (6) months from delivery. The same applies to spare parts and circuit boards that have been supplied or repaired by Victron Energy.

Transport

It is the responsibility of the sender to sufficiently package these products. The transport must be organized in a way to avoid any damage, especially when a single unit or heavy unit is sent.

Severability

If a part of the terms and conditions of this warranty is held invalid, void or unenforceable due to any particular national or international legislation, it shall not affect other parts of the terms and conditions of this warranty.

Applicable law

This warranty is exclusively governed by the laws of the Netherlands, to the exclusion of the UN Convention on Contracts for the International Sale of Goods.

Contact details

Victron Energy B.V. | De Paal 35, 1351 JG Almere, The Netherlands | https://www.victronenergy.com/support

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