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Victron
Victron 12V to 12V Orion-Tr Smart 12/12-30A Isolated DC-DC Charger

Victron 12V to 12V Orion-Tr Smart 12/12-30A Isolated DC-DC Charger

4.9(8 ratings)

Best price now

$193.80at Renewable OutdoorsChecked 1 h ago

15% under what the other stores charge

Compared across 15 stores. Prices are checked against each store and labelled with when.

Visit Renewable Outdoors

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Price facts

  • Lowest price today: $193.80 at Renewable Outdoors (checked Nov 12, 2026).
  • Checked at 15 stores.

Our take on the Victron 12V to 12V Orion-Tr Smart 12/12-30A Isolated DC-DC Charger

The Victron Orion-Tr Smart 12/12-30A is an isolated DC-DC charger that takes 12V from an alternator or starter battery and charges a 12V auxiliary battery with a regulated, adaptive 3-stage profile. It delivers 30A continuous with 40A peaks, and its galvanic isolation up to 200V DC between input, output and case protects sensitive electronics from ground loops. Bluetooth and the VictronConnect app handle setup and monitoring, so no separate display is needed. It suits campervans, boats and off-grid builds with smart alternators; rivals like the Renogy and CTEK units are cheaper but usually offer less configurability and no isolation.

Best forCampervan and motorhome dual-battery chargingBoats with mixed or isolated battery banksVehicles with smart (Euro 5/6) alternatorsOff-grid 12V auxiliary battery systems
Pros
  • 30A continuous, 40A peak output
  • Galvanic isolation up to 200V DC
  • Adaptive 3-stage charging with programmable profiles
  • Bluetooth setup and monitoring via VictronConnect
  • Handles smart alternators with variable voltage
Cons
  • Needs correct wiring and fusing; not a plug-and-play unit
  • Bluetooth setup assumes a phone and app familiarity
  • Isolated design costs more than non-isolated converters
  • Runs warm under sustained 30A load

Victron 12V to 12V Orion-Tr Smart 12/12-30A Isolated DC-DC Charger prices at every store

  • Renewable OutdoorsNew

    In stockReturn policy

    $193.80Checked 1 h ago
    Visit Renewable Outdoors
  • Nomadic Supply CompanyNew

    In stock

    $203.95Free shippingChecked 1 h ago
    Visit Nomadic Supply Company
  • Blue MarineNew

    In stock

    $219.30Free shippingChecked 1 h ago
    Visit Blue Marine
  • WalmartNew

    In stockSold by KFN Tech

    $219.30Free shippingChecked 1 h ago
    Visit Walmart
  • The Harbour ChandlerNew

    In stockShips from Canada · duties may applyReturn policy

    $228.72Checked 1 h ago
    Visit The Harbour Chandler
  • Solar 4 RVsNew

    In stockShips from Australia · priced in AUD (A$335.95) · duties may applyReturn policy

    $229.15Checked 1 h ago
    Visit Solar 4 RVs
  • West MarineNew

    In stock

    $219.30+ $9.95 shippingChecked 1 h ago
    Visit West Marine
  • NAZ Solar ElectricNew

    In stock

    $219.30+ $11.70 shippingChecked 1 h ago
    Visit NAZ Solar Electric
  • Expion360New

    In stockReturn policy

    $243.95Checked 1 h ago
    Visit Expion360
  • DigiKeyNew

    In stock

    $243.95Free shippingChecked 1 h ago
    Visit DigiKey
  • Solar-Go.comNew

    In stockPriced in EUR (€234.00)Return policy

    $259.29Checked 1 h ago
    Visit Solar-Go.com
  • VoltaconSolarNew

    In stockReturn policy

    $261.00Checked 1 h ago
    Visit VoltaconSolar
  • solarflexion.comNew

    In stock

    $243.95+ $38.30 shippingChecked 1 h ago
    Visit solarflexion.com
  • Sportsman's WarehouseNew

    In stock

    $287.00Free shippingChecked 1 h ago
    Visit Sportsman's Warehouse
  • CM MarineNew

    In stockShips from New Zealand · duties may applyReturn policy

    $292.00Checked 1 h ago
    Visit CM Marine

Victron 12V to 12V Orion-Tr Smart 12/12-30A Isolated DC-DC Charger price history

Lowest price we've seen: $203.95 on Nov 13 at Nomadic Supply Company. Tracked across 8 stores since Nov 13.

What reviewers say

Owners rate the Orion-Tr Smart highly for reliable charging of auxiliary banks and for the depth of control through VictronConnect. Complaints center on the setup effort and on heat under continuous load.

What people mention
  • Charging performancePraisedOwners say it holds a steady charge and keeps auxiliary batteries topped up on long drives.
  • SetupMixedConfiguration through the app is flexible, but first-time wiring and settings take care.
  • HeatCriticisedSeveral owners note the unit runs warm when pushed at full current.
  • IsolationPraisedThe isolated output is credited with removing ground-loop noise in mixed-voltage installs.
  • Smart alternatorsPraisedUsers report it copes well with variable alternator voltage on modern vehicles.

About the Victron 12V to 12V Orion-Tr Smart 12/12-30A Isolated DC-DC Charger

The Victron Orion-Tr Smart 12/12-30A is an isolated DC-DC charger that converts power from a 12V alternator or battery bank to charge a 12V auxiliary battery. It is used in vehicles, boats and off-grid installations. It charges in three stages: Bulk, Absorption and Float.

It delivers 30A of continuous current, with a peak output of 40A for short surges. Galvanic isolation up to 200V DC between input, output and case protects against ground loops and voltage spikes. Built-in Bluetooth lets you configure and monitor the charger and update its firmware through the VictronConnect app.

Charge profiles can be programmed for AGM, Gel, Flooded and Lithium batteries. Engine detection prevents the starter battery from being drained when the engine is off, and the charger works with Euro 5/6 smart alternators. A remote on/off terminal connects to a battery management system or a manual switch, and units can be run in parallel for higher current. Protection is provided against short circuit, over-temperature and reverse polarity.

Input voltage
10-17V
Output voltage
Adjustable, 10-15V
Output current
30A continuous, 40A peak
Isolation
Galvanic, up to 200V DC between input, output and case
Charge algorithm
Adaptive 3-stage (Bulk, Absorption, Float)
Battery types
AGM, Gel, Flooded, Lithium
Connectivity
Bluetooth Smart, VictronConnect app
Protection
Short circuit, over-temperature, reverse polarity
Ingress rating
IP43 with screw terminals facing downward
Cooling
Passive, extruded aluminum heatsink

Questions and answers

Does it work with a smart alternator?
Yes. It is designed for variable-voltage smart alternators and lets you set the input thresholds so charging starts and stops correctly.
Can I charge a lithium battery with it?
Yes. Charge profiles are programmable in VictronConnect, including voltages suited to lithium (LiFePO4) banks.
What is the difference from the non-isolated Orion-Tr?
The isolated version separates input, output and case up to 200V DC, which prevents ground loops and protects electronics. The non-isolated version is simpler and cheaper but lacks that protection.
Do I need a separate display?
No. Bluetooth and the VictronConnect app cover configuration and monitoring; a display is optional.
What comes in the box?
The charger unit itself. Wiring, fuses and mounting hardware are not included and must be sourced for your install.
Where is the Victron 12V to 12V Orion-Tr Smart 12/12-30A Isolated DC-DC Charger cheapest?
At Renewable Outdoors, for $193.80, 15% under what the other stores charge, as of our latest check.
What do buyers say about the Victron 12V to 12V Orion-Tr Smart 12/12-30A Isolated DC-DC Charger?
Rated 4.9 out of 5 from 8 ratings.
Where can I buy the Victron 12V to 12V Orion-Tr Smart 12/12-30A Isolated DC-DC Charger?
15 stores we checked sell it, including Solar 4 RVs, Renewable Outdoors, Expion360, Solar-Go.com, CM Marine.

Stores we've priced the Victron 12V to 12V Orion-Tr Smart 12/12-30A Isolated DC-DC Charger at

  • Walmart deals and prices

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Operating temp.
Full rated power up to 40°C ambient
Terminals
Screw terminals, cables up to 16 mm² (AWG 6)
Remote control
Remote on/off terminal
Parallel use
Supported
Dimensions
130 x 186 x 80 mm (5.1 x 7.3 x 3.2 in)
Weight
1.8 kg (3 lb)
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