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  • Victron Battery to Battery Charger 18A - 12/12 Orion-Tr Smart – Isolated DC-DC Charger
  • Victron Battery to Battery Charger app

Battery to Battery Charger Kit – Includes Victron Orion DC-DC charger

(8 customer reviews)

From £213.46

This battery to battery charger kit includes everything you’ll need to wire in the Victron Orion DC-DC charger as part of your campervan electrical system. It includes:

  • Victron Orion-Tr Smart battery to battery charger (available in isolated and non-isolated, 18A and 30A models)
  • 2x MIDI fuses (40A for 18A model, 60A for 30A models)
  • 2x MIDI fuse holders
  • 16mm2 red & black cable (available in 3m, 6m and 9m lengths)
  • Cable lugs to connect to the starter battery & positive busbar

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From £213.46

In stock - 1-2 day dispatch

£2.13 of this purchase goes to planting trees and advancing access to solar energy 🌱
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    Battery to Battery Charger kit – includes Victron Orion DC-DC charger & all required components

    This battery to battery charger kit includes everything you’ll need to wire in the Victron Orion DC-DC charger as part of your campervan electrical system. It includes:

    • Victron Orion-Tr Smart battery to battery charger (available in isolated and non-isolated, 18A and 30A models)
    • 2x MIDI fuses (40A for 18A model, 60A for 30A models)
    • 2x MIDI fuse holders
    • 16mm2 red & black cable (available in 3m, 6m and 9m lengths)
    • Cable lugs to connect to the starter battery & positive busbar

    Which battery to battery charger should you pick?

    Not sure if you need the 18A or 30A model, or an isolated or non-isolated charger? Read our article about how to choose the right battery to battery charger.

    Which cable length should you pick?

    The cable length refers to the distance between your starter battery and your electrical system. Make sure you factor in vertical distance as well as horizontal. If in doubt, pick the next size up.

    Victron Orion battery to battery chargers

    The Victron Orion-Tr Smart battery to battery charger (sometimes referred to as a B2B or DC-DC charger) intelligently and safely charges your leisure batteries from your vehicle’s starter battery whilst driving. As modern vehicles use smart alternators, the option of using a basic VSR is not viable in any vehicle with a Euro 5 or Euro 6 engine. The Orion-Tr Smart B2B is simple to install and simply requires access to the vehicle’s starter battery. The 18A model charges the leisure battery at a rate of 18A/hr, and the 30A model charges at a rate of 30A/hr.

    Isolated vs non-isolated battery to battery chargers

    Isolated battery to battery chargers are suitable for systems where batteries don’t share a common ground, such as in a motorhome with a composite body. Non-isolated chargers can be used in systems where the batteries share a common ground. If you aren’t confident which model you need, we’d recommend opting for the isolated model as this will work in all systems.

    Smart functionality

    Victron battery to battery chargers have built-in Bluetooth, allowing you to connect wirelessly to the VictronConnect App, which can be downloaded from the app store on Android or iOS devices. 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.

    Battery to battery charger – use cases

    It is not possible to use a basic VSR in any vehicle which has a smart alternator (Euro 5 and above) or a system with a lithium leisure battery. Battery to battery chargers are therefore required in these instances. B2B chargers are also recommended as they can safely charge your leisure battery to 100% by entering the ‘absorption’ phase, which VSRs aren’t able to do.

    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 Orion Tr-Smart charger can be used 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.

    Looking for a stand alone Victron Energy battery to battery charger not in a kit?

    View the full range of Victron Orion B2B chargers

    Products that give back

    We are members of 1% for the Planet. This means that for every product purchased from Nohma, 1% of the total cost will be given to The Honnold Foundation, to provide solar power to underprivileged communities. If you want your electrical system to have more of a positive impact, purchasing your components from us at Nohma will mean you can give back as well as powering your off-grid system.


    Weight 2.6 kg
    Dimensions 8.6 × 16.5 × 26 cm
    Brand

    Victron Energy

    Manufacturer Part Number

    ORI121222120

    Nominal Output Voltage

    12.2

    Input Voltage Range

    8-17V

    Output Voltage Adjust Range

    10-15V

    Continuous Output Power at 25°C

    280W

    DC Connection

    Screw Terminals

    Dimensions

    H130 x W186 x D70mm

    Warranty

    5 Years

    Battery to Battery Charger

    18A Isolated, 30A Isolated, 30A Non-Isolated

    Charger type

    B2B

    Product or kit

    Kit


    8 Reviews 5.00


    1. Dan

      Excellent addition to our van only annoyed that I didn’t have one sooner

    2. Russell Masters

    3. Jordan Syme

      Excellent service and easy to install

    4. Peter

      Incredibly happy with the after sales supported offered by the Climbingvan team. They go beyond expectations.

    5. Paul m.

      Kit included everything needed and the Victron dc -dc charger is working flawlessly. Will be using climbingvan again.

    6. Christopher Bairstow

      Performs as advertised. Bluetooth setup excellent

    7. Keith Lowe

      Realy top shelf item,the wiring kit was ample to connect up my Son’s Sprinter complete with 2 x busbars and a kill switch, we only needed to purchase extra knock on lugs with shrink tube. All in all excellent service and technical help from Paul Husband, top guy. Kind regards Keith and Gary Lowe 😀

    8. Steven S.

      Everything I needed to fit my dc-dc charger. Delivered quickly, fitted in an hour and working perfectly.

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