Victron Energy

Orion-TR Smart DC DC Charger with Bluetooth

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Size 12V/12V-30A

Style Isolated

SKU ORI121236120


The Victron DC DC charger (Orion-TR Smart) models are professional DC to DC adaptive 3-stage chargers with built-in Bluetooth and are suitable for lithium battery charging from a lead acid battery and alternator.

The Orion-Tr Smart DC-DC Charger can be used as a power supply or as a battery charger. In charger mode the three-state charge algorithm will increase battery life by properly charging the battery. Especially in the case of vehicles with a smart alternator, or voltage drop caused by long cable runs, controlled charging is indispensable. Controlled charging will also protect the alternator in lithium systems where direct charging can overload the alternator due to the low impedance of the lithium battery. In fixed output mode the output voltage will remain stable independent of the applied load or varying input voltage (within the specified range).

The Orion-Tr Smart DC-DC Charger can be set up to only provide power when the engine is running. This is possible thanks to the built-in engine shutdown detection. This also prevents the onboard voltage of the vehicle from becoming too low. It is not necessary to intervene in the system of the vehicle, to install a separate motor run sensor or to intervene in the CAN-bus system. Apart from this detection, the Orion-Tr Smart DC-DC Charger Isolated can also be activated by a forced allowed to chargefeature, e.g. connected to the ignition switch.

For use in dual battery systems in vehicles or on boats where the (smart) alternator and the start battery are used to charge the service battery. The unit can be monitored and programmed via Bluetooth and can be remotely controlled via a remote on/off switch and has an engine running detection mechanism. The Orion-Tr Smart charger can be used in 12V or 24V systems and is suitable for both lead acid and lithium batteries. Models are available up to 400W and unlimited multiple units can be connected in parallel to increase output power.

Suitable for high temperatures up to 55°C with a full rated output up to 40°C.


Isolated vs Non-Isolated

Isolated models have negative connections for both the input and output. Non-isolated models have a single negative connection.

Model Names

Models are named with input voltage, output voltage, and total amperage.  For example, model 12V/24V-15A is a 12 volt nominal input, 24 volt nominal output, and 15 amp continuous output current at 40C.

Bluetooth Built-in

Any Bluetooth enabled smart phone, tablet or other device can be used to monitor, to change settings and to update the charger when new software features become available.

Fully Programable

  • Battery charge algorithm (configurable) or fixed output.
  • Smart alternator compatibility: engine running detection mechanism.


Adaptive 3-stage charge algorithm: bulk - absorption - float

  • For lead acid batteries it is important that during shallow discharges the absorption time is kept short in order to prevent overcharging of the battery. After a deep discharge the absorption time is automatically increased to make sure that the battery is completely recharged.
  • For lithium batteries absorption time is fixed, default 2 hours.
  • Alternatively, a fixed output voltage can be chosen.


Suitable for use in vehicles with a smart alternator (Euro 5 and Euro 6 engines)

The built-in engine shutdown detection will stop the converter when the engine is not running. This prevents unwanted discharge of the starter battery (see manual for details).

Remote On/Off

A remote on/off switch or relay contact can be connected to a two-pole connector.  This is particularly useful in systems where multiple Orion-TR Smart chargers are used in parallel as it allows control of the total load placed on the alternator.

Alternatively, the H terminal (right) of the two-pole connector can be switched to battery plus, or the L terminal (left) of the two pole connector can be switched to battery minus (or the chassis of a vehicle, for example).

All models are short circuit proof and can be paralleled to increase output current

An unlimited number of units can be connected in parallel.

High temperature protected

The output current will reduce at high ambient temperature.

IP43 Protection

When installed with the screw terminals oriented downwards.

Screw Terminals

No special tools needed for installation.





User Manuals

Orion-TR Smart DC DC Charger Isolated User Manual

Orion-TR Smart DC DC Charger Non-Isolated User Manual

White Papers

 Engine-On Detection Setup with Orion-TR Smart DC DC Chargers


 Orion-TR Smart DC DC Charger Isolated Datasheet

Orion-TR Smart DC DC Charger Non-Isolated Datasheet



    Models (Input voltage/Output voltage/Continuous output current in amps)





    Input voltage range (1)

    12/12-30: 10-17 V

    12/24-15: 10-17 V

    24/12-30: 20-35 V

    Under voltage shut down

    12/12-30: 7 V

    12/24-15: 7 V

    24/12-30: 14 V

    Nominal output voltage

    12/12-30: 12.2 V

    12/24-15: 24.2 V

    24/12-30: 12.2 V

    Output voltage adjust range

    12/12-30: 10-15 V

    12/24-15: 20-30 V

    24/12-30: 10-15 V

    Cont. output current at nominal output voltage and 40 °C

    12/12-30: 30 A

    12/24-15: 15 A

    24/12-30: 30 A

    Maximum output current (10 s) at nominal output voltage minus 20 %

    12/12-30: 40 A

    12/24-15: 25 A

    24/12-30: 45 A


    12/12-30: 87%

    12/24-15: 88%

    24/12-30: 88%

    No load input current

    12/12-30: <80 mA

    12/24-15: <100 mA

    24/12-30:  <100 mA

    Standby current Less than 1 mA
    Galvanic isolation (Isolated Models Only) 200 VDC between input, output and case
    Operating temperature -20 to +55°C (derate 3 % per °C above 40 °C)
    Humidity Max. 95%, non-condensing


    Power Terminals 16 mm² / AWG6
    Protection category IP43 (electronic components), IP22 (connection area)
    Weight (kg)

    12 V input and/or 12 V output models: 1,8 kg (3 lb) Other models: 1,6 kg (3.5 lb)

    Dimensions (H x W x D) mm

    12 V input and/or 12 V output models: 130 x 186 x 80 mm (5.1 x 7.3 x 3.2 inch)

    Other models: 130 x 186 x 70 mm (5.1 x 7.3 x 2.8 inch)


    Safety 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 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 is not equipped with a VE.Direct port.



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