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AC-DC power supply to Orion DC-DC charger
  • I am using an Orion DC-DC 12/12-18A to charge a leisure battery from the starter battery.
  • I would like to charge the leisure battery while parked up with AC power.
  • Can I use an AC-DC power supply to the Orion?
  • Will the Orion draw more than 18A and fry the PSU for any reason?
  • Is there already a product that does this? e.g. an AC/DC-DC charger

The reason I dont want to buy a battery charger is that ive already got one in the Orion. Using a generic PSU will allow me to power my entire DC circuit and charge the battery via the Orion at the same time.

Thank you

shortcircuit asked
shortcircuit answered ·

2 Answers

Orion-tr 48v to 24v charging

Hi all looking for some advice please

I am trying to charge a 24v AGM battery from my 48v AGM battery system

The only thing I've found that might be suitable is the Orion-TR 48V/24v

My concern is, they don't sell the 'smart' model in 48v , is the standard TR model suitable for charging AGM batteries?

Thank you


thesamman asked
JohnC answered ·

1 Answer

Orion DC-DC charging 414W but Cerbo GX shows Battery discharge -414W

My system until now had worked fine, has a Lynx Smart Shunt. All loads and MPPT's wired to Victron Distributer.

Any shore power charging, MPPT charging all shows on the Cerbo GX correctly.

I just wired in an Orion Smart 30A DC-DC non isolated. While it does charge the system, and the Cerbo GX battery icon correctly shows "414 Watt charging" the DC icon shows an exact opposite "-414 Watts"

Why the "-414W" this shows a drain exactly matching the charge value ?

The system in reality is charging correctly and the battery will fully charge correctly when DC-DC is charging.

If you look at the Cebro GX and saw charge = 414W and DC = -414W in theory this means zero charge, yet its charging ?

I have the + from the DC-DC Orion into the Victron Distributer and the common - of the DC-DC Orion also to the Victron Distributer, same as I have the MPPT chargers.

Any ideas why DC-DC charging shows as a negative DC draw on the Cerbo GX while at the same time it shows the exact same charge ?


Russell Brown asked
Russell Brown answered ·

4 Answers

Isolating Generator Battery - Orion?

I have an auto start SOC setup for my 5th wheel generator using my CerboGX. The problem is that when the generator kicks on it of course draws a lot of amperage, causing a significant power drop to things like my referigerator, computers, etc. What I want to do is isolate/dedicate a cheap AGM battery to the generator only.

Am I correct in my research that the Orion is going to be the best bet for this? Do you have any other recommendations?

b380 asked
kevgermany answered ·

1 Answer

Orion Isolated Wiring with Shunt

Hi all. I have a feeling I have purchased the wrong type of Orion (I bought Isolated instead of non-Isolated). However, I currently have no way to return the device.

I am installing it on a boat where I have a starter battery powered by an alternator, and then a house Lithium bank.

This is how I am thinking of wiring it, but I have a feeling I am creating a short by having the -ve combined as opposed to isolated.

Can you advise on the below? (Please excuse the shoddy diagram)

Many thanks.


lawrence-craig asked
JohnC answered ·

3 Answers

Bow Thruster Battery Charge - Fuse Question


I have a boat with 12V SLA house batteries. It has a Windlass at the bow fed by heavy cables from the House batteries and the +ve cable is protected by a thermal trip at the house battery end.

I've just purchased an Insulated Orion-TR Smart 12/12 18 Amp DC-DC charger, which I want to connect at the bow to the existing heavy feeder cables used for the Windlass, so I can charge my 120AH SLA Windlass battery, also situated at the bow.

My question is: Do I need to fuse the existing +ve feeder cable at the bow end, just in case the Orion can make its input go +ve and cause a problem if there is a short on the feeder cable, or does the Insulated version I have purchased make this fusing unnecessary?

Thanks - Dave.

wicked asked

0 Answers

Hot to charging a 24V Lead Battery from 60 Volts DC?

Hi there, my System has a large 60V LiIon battery bank but I want to convert this to 24, 12 and 5 Volts for meaningful use in the home. For that I install a 24V Lead Acid buffer battery (mandatory) and I want to charge it from the 60V bank without using 230V.

Using this voltages, Victron offers only DC Converters, no chargers. So can I use a MPPT Charger for that? Or will there be a 48 to 24V charger in the foreseeable future?

Other suggestions? Thank you!

Strohmtony asked
djsmiley edited ·

1 Answer

Orion-Tr smart 12/24-15 low power output?

Hi everyone, I have a Victron Orion tr smart, 12 to 24v dc to dc charger fitted in my camper van, since fitting it I’ve never seen it output the rated power. I have a 360w output model, but the most I have seen is 310w (when stone cold), usually sits at around 280w after a few minutes of use. ( 20-30% below it’s rating )

I’ve heard it should output 400w untill it reaches 25 degrees, once there it should sit at 360w ? And only reduce power output once it starts getting too warm ?

Currently in Norway where there is minimal solar input so I’m really wanting the most out the dc-dc charger, can anyone advise?

For reference I have a 24v 200AH lifePo4 battery bank, 770w of solar and a MPP solar all in on inverter / MPPT charge controller.

The orion is fitted in a well ventilated cupboard with additional fans to help with air flow, the wire runs to and from the unit are under 1m so no issues with voltage drop etc…

The vehicle has a large alternator (180-220amp)

all help appreciated, thanks in advance

kristiantrainor asked

0 Answers

Correct trickle charging method for starter

Hi all - I am very confused about the above topic and was hoping for some input. I have a Citroen Relay 17 reg (which has a smart alternator) which I'm converting to a campervan. I don't use it everyday, and I've been suprised how quickly the starter battery runs down (the immobiliser in particular is apparently a thirsty one). I'm planning out my electrics, but keep reading conflicting info about the best way to keep the starter battery topped up. My starter battery is not a Victron, but the original battery and for economy sake I don't want to change it yet as it's fine.

One method is to not even link the starter battery to the rest of the camper at all, and just use an external trickle charger when needed, however to me this seems like a nuisance. Some people also seem to just disconnect the battery for longer spells and keep the van turned over otherwise, but this is apparently not the best for the battery (not sure how true this is - can only find anecdotal info).

If I design my system to trickle charge the leisure battery then I'm confused between whether I should do this fromthe victron dc-dc charger as I have been told it causes problems when using an MMPT solar charger and a multiplus (which i have already purchased - i have 2 solar panels). Others have said I can just use a cyrix while others a cyrix and a dc-dc charger.

Keeping the starter battery topped up is my priority - having the alternator charge the leisure batteries is just a bonus as I've probably overshot on my leisure battery capacity and my solar panels, and I will be mostly on site where i have shore power, so should never (in theory) need to rely on my alternator to give me a boost. But I want to eliminate the risk of my starter going flat, and reduce the maintenance needed when not inuse.

I'm really starting to tear my hair out on this one - really would appreciate some advice or links! Thanks all

Dylan Tucker asked
kevgermany commented ·

2 Answers

Appairage BatteryProtect HQ2132JXTXE et Orion Smart HQ2137XNUMZ par Bluetooth


Mon installateur m'a installé BatteryProtect HQ2132JXTXE et Orion Smart HQ2137XNUMZ.

Sous son contrôle, j'ai installé l'appli Victron Connect. Lors de la première utilisation dans son garage mon téléphone Galaxy A20 ne s'est pas appairé par le Bluetooth avec les 2 appareils.

Arrivé chez moi, j'ai reussi à appairé mon téléphone avec les 2 modules et j'ai pu changer les 2 mots de passe et voir les informations.

Depuis, j'ai renouveler l'accès plusieurs fois sans succès...

Merci pour toute information.

pri asked
Thiemo van Engelen (Victron Energy staff) commented ·

0 Answers

Orion product development for GX integration

Hi All,

Let me start by saying that I work for an official Victron installer, and I love everything Victron related, and will use nothing else. This question is not a rant by any means, and more a question as to future development.

My question is regarding the Orion series of DC-DC chargers and the integration to GX devices, in the scenario of Motorhome using an Orion as a charging source from the truck alternator.

In a fully integrated system we are able to show on the Touch50 screen all the functions of the battery, MultiPlus, MPPT, and all AC input/output. However, the Orion chargers do not connect to the GX device, and thus show nothing on the Touch50. There is a "DC power" option on the display, which works to see if the Orion is working in terms of Watts, however, we aren't able to see the charger status etc.

We also have requirements to disable the Orion based off Low-Temperature cut outs, which is currently not possible (without a complicated workaround). An integration to the GX device and the existing temperature sensors connected to the GX device could possibly disable the Orion in future.

Thank you.

Matthew asked

0 Answers

Orion TR Dual Ignition Input

I have an Orion TR Non-Isolated DC-DC 30 amp charger installed in my twin engine boat. I'd like to connect both 12v ignition lines to the H pin so that the charger operates when either engine is running. Does anyone know if this would cause any issues when both engines are running and providing 12v to the H pin at the same time? Thank you.

reheat asked
reheat edited ·

1 Answer

48V to 12V isolated charger?

Hello, for a boat, I'm searching for a way to use a 48V system (used for propulsion) to charge 12V batteries used for house loads.

  • The charging device needs to have isolation between the 48V and 12V legs
  • The charging device needs to have programmable charging parameters for the 12V batteries (battleborn LFP)

The Orion-Tr series of converters are not smart and just output a steady voltage, since they are converters only, so they won't work for this use case

The Orion Smart charger/converters only support 12V/24V and not 48V.

I could use a MPPT solar charge controller but I'm not sure that they are actually isolated.
I do see the "SmartSolar MPPT RS 450|100 & 450|200 - Isolated" but I think it is overkill, and too big for the space available for the device.

Any ideas of a victron product that would work? Are the usual victron solar charge controllers isolated?


ev-gavia asked
ev-gavia answered ·

2 Answers

schema aansluiting Orion- Tr Smart , Smart solar MPPT 75/15 , Small BMS Smart battery Protect65

Ik zoek het schema voor de aansluiting van een Orion- Tr Smart , Smart solar MPPT 75/15 , Small BMS en Smart Battery Protect 65.

Grt Apcruiser

apcruiser asked

0 Answers

Synchronized charging between MPPT / Multiplus-II / Orion


I have two MPPT chargers that are networked with a smart shunt, they charge in sync just fine.

How does a Multiplus and / or Orion factor in if AC / alternator is available?

Will they not attempt to charge if solar is available? Can solar be forced to be priority?

Thank you.

System (Mobile RV):

Multiplus-II 3KVA 2x 120v

MPPT 150-85

MPPT 150-60

Cerbo GX / Touch 50

Smart Shunt

Orion-Tr Smart DC/DC Charger for alternator charging

400AH Discover Battery LFP

m-richards asked
snoobler answered ·

1 Answer

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