Orion DC-DC Converters not smart Image

Orion DC-DC Converters not smart

Victron DC to DC converter as boat house battery charger

I have a small outboard boat with 2 batteries one for starting and a house battery for electronbics. in the dc dc converter it says its not for charging. 90% of the time ill be charging my house battery in the garage. a small part of the time, im thinking the DC DC converter can recharge the house battery when the boat is running. I guess i would need to pick a single voltage for AGM house batteries.

any issues with doing this?

david-ostrowski asked
anieuwstadt answered ·

1 Answer

Orion TR Smart and Euro 6 Engines

Hi the collective hive of information.

I am in the middle of commissioning an Orion TR Smart 12/12-30A on a VW T6 Camper van. The system doesn't seem to be triggering that often, and even after a couple of hours driving the Lithium batteries are not full.

All default settings have been used, but the start battery is regularly at 12.3-12.5v.

Are the default settings too aggressive, do they need to be dropped. If so any recomendations. I have done various searches and running second battery charging with Euro 6 engines seems to be a dark art with little information about what a good set of settings should be.

My instincts as opposed to science or knowledge is to:

Drop Input Voltage Lockout to be 12.1v / 12.3v. After starting the engine and idling the starter battery is regularly at 12.2v, so restarting shouldn't be an issue at 12.1v.

Setting Start Voltage to 13.2v

Setting Delayed start to 12.8v

Setting shutdown voltage to 12.7v

Any guidance, are these values too low?

Many Thanks



bathnm asked
bathnm answered ·

2 Answers

At what altitude m.a.s.l. may an Orion TR 48V-24V be installed

At what altitude m.a.s.l. may an Orion TR 48V-24V be installed. Our customer wants to install it at 4000m altitude. Is this possible?

Roland Reutimann asked
wkirby answered ·

1 Answer

Has the hardware changed in the Orio-Tr? Wont charge!

Made some more DCDC 24-12-24V Lithium boxes to a customer. The products are as usual, but now the newly purchased Orion-Tr 24/12-9 won't charge the 20ah Superpack...

Has the hardware or whatever changed? It works if a put a generic load on the output terminals of the Orion-Tr but if its connected to a battery (With or Without a load) its doing absolutely nothing.

philipr asked

0 Answers

remote on/off on Orion-TR from Cerbo GX relay?

Hey, I have a 48v Lifepo4 bank with a Multiplus 2 inv/charger. I also have a 12v lead acid bank, charged from the 48v bank with an Orion TR isolated 48/12 DC-DC. What I need help with is how to use the Cerbo GX relay to be able to turn the Orion on/off through the Cerbo GX remote console. How do I wire those together to get that function? cheers,

sherulesthewaves asked
trevor-bird commented ·

1 Answer

Orion-Tr Smart DC/DC control and grounding clarification


I am building a 24V setup very similar to the victron van install (https://community.victronenergy.com/articles/15035/victron-vw-van-electrics-install-schematic-drawing.html) on a old Mercedes Benz truck (no smart alternator).

Instead of the Buck Boost, I will use the new Orion-Tr Smart 24/24-17A (400W) Isolated DC-DC charger behind a Battery Protect.

My negative bus bar and the enclosure of the MultiPlus are grounded to the chassis using 4mm2 wire.

The manual of the Orion-Tr Smart (https://www.victronenergy.com/upload/documents/Manual-Orion-Tr-Smart-Charger-Isolated-EN-NL-FR-DE-ES-SE-IT.pdf) states on page 4:

"Remote on-off
Use the remote function to enable and disable the converter remotely with the remote on/off connector or using the
VictronConnect app. Typical use cases include a user operated
hard wired switch and automatic control by for example a Battery
Management System. If the minus of the service battery is not at
the same potential as the minus of the alternator or starter battery
an isolated remote on/off cable between the BMS and the on/off
port is required, see chapter 4.4 for details.

This should not be the case in a vehicle, but the on page 10, Figure 4:


there is an isolated remote on/off cable shown.

So here are my questions:

  • Is it correct to ground the negative bus bar and the enclosure of the MultiPlus to the vehicle?
  • Is it necessary to also ground the enclosures of the MPPT, the Orion etc. in such a setup?
  • Basically, I want to use the automatic "engine running" detection mechanism of the Orion-Tr to enable it. In case the VE.Bus BMS triggers the charge disconnect, the BatteryProtect on the charge side disconnects the Orion-Tr to protect the batteries. The question now is, if I also need to deactivate the Orion-Tr to protect it from beeing damaged, like with a MPPT? How would I do this? I have a "Non inverting remote on-off cable, ASS030550200" in my hands. It does not look like the one used in the diagram, it only has three cables (red, black, yellow).


kiko asked
Rod answered ·

1 Answer

Orion-Tr DC-DC Converter Isolated, wire terminal colour

Some are blue and some black around terminals, how do i know which i’ll receive Is the colour based on voltage or amperage?

Severe OCD my terminals must be black to match solar controller.

nivek asked
klim8skeptic commented ·

1 Answer

Welche Ausgangsspannung dc-dc Wandler einstellen

Ich habe mir einen Orion -TR DC-DC 12v-12V 30 A gekauft ohne Smart. Unten ist eine Schraube womit ich die ausgangs Spannung verstellen kann. Mein Frage wäre . Welche Ausgang Spannung muss ich am Wandler einstellen wenn die Lichtmaschine Strom erzeugt über die Fahrzeugbatterie . Dann auf meine Lifepo 4 . Sehe keine Abschaltung . Die Aufbaubatterie darf ja nur 14,2 V bekommen als Ladeschlußspannung . Es geht sich nur um die Spannung damit er auch abschaltet wenn ich wärend der Fahrt die Batterien voll habe . Danke für eure hilfe . Lg

mike-riemenschneider asked
steffen-graap answered ·

1 Answer

How to measure two DC Inputs On CCGX

I am looking to install a Victron system on my RV that will be using a third-party DC-DC charger to charge 48v house batteries from the vehicle's 12v alternator. If I were to connect this charger through a dedicated BMV battery monitor (with a second one for the system's DC loads), is there any way to have one show up as an "alternator" input on the CCGX display screen?

I know I could connect it through the BMV-700 and presumably just have the CCGX show it as power flowing from the "DC loads" box to the battery. My primary concern is ease-of-use for the end user, so I would greatly appreciate any way to configure thte CCGX for this display.

chase-martin asked
leedyson1 commented ·

4 Answers

What type of connector is used for the remove on a Victron Orion DC-DC Charger?

I need a replacement remote bridge for my Orion. Does anyone know what type of connector it uses or where can I source one?


antswift asked
juan-pablo-dosantos commented ·

1 Answer

Orion Non-Isolated + MPPT Question

Hi all, Q.s re 24v electric motor + 12v domestic setup on my boat.

Have 2 banks of solar 780w and 160w both charging my 24v batteries via separate MPPTs.

After a few rethinks, I'm thinking of fitting a 24/12 10a Orion non-isolated converter to power 12v appliances, and placing a LA buffer battery in parallel on the outputs. As far as I understand running converter at full load is more efficient. And the buffer battery would ‘step in’ and handle occasional loads above converter output. Want to be 100% this is correct?

To recharge the buffer battery, I was thinking I could fit a 2 pole 1-2 changeover switch to MPPT outputs of my 160w solar https://www.bimblesolar.com/changeoverswitch

If I were to changeover MPPT outputs between 24v and 12v battery systems, would the MPPT parameters automatically adjust to the new voltage?

Would I need to disconnect the 24/12 Orion from buffer battery when using an MPPT to charge it? Orion low power converters output voltage about ~12.7v. Would MPPT think this is the buffer battery voltage and go straight into float mode?


tara-dee asked
kevgermany answered ·

1 Answer

DC/DC converter on MPPT load output. not possible ?

Hello !

I have an orion 24/12 20 Amps DC/DC Conveter on the load output of an mppt 75/15 (victron) on a 24V system. Both devices are well functionning separetely but not together. Is that a normal thing ?

In the above mentionned setting i get an output voltage varying between 3 to 4 volts instead of 12.3V if i plug the Orion straight on the batteries.



raven asked
wbuchan commented ·

3 Answers

Parallel dc sources

Can the output of a mppt be put in parallel with the output of a dc~dc converter charger.. why? Because you need power added to lithium bank while plugged into shore power. Let’s say you sleep late and the solar starts pumping power. Who’s going to win. Will they fight each other?

cdstaley asked
shaneyake commented ·

1 Answer

Victron Orion 24/12 25a Max Output Current + Fuse Sizing

Hi All,

I'm looking to order a Victron Orion 24/12 25a Converter to power 12v domestic boat electrics from 24v battery system. Few quick questions:

1. Do we know for how long the max 35a output current rating is recommended? There's a small chance my 12v draw may jump above 25a for approx. 5 mins when my 12v diesel heater startup glow plug is on (it draws 10a!)

2. Assuming it is advisable to work to a 35a max output current, I'll have a 40a fuse on the 12v output cable and 20a fuse on the 24v input cable (because 35a @ 12v = 17.5a @ 24v). Does this sound OK?

3. Or, if 25a is the strict maximum output I should plan for, would it be advisable to fit a 25a breaker to the 12v output to protect the Orion if draw does go above 25a? (it's pretty unlikely this will ever happen, as everything would need to be on, inc. horn, headlight, bilge pump, water pump etc)


tara-dee asked
kevgermany commented ·

11 Answers

Orion-TR 12|12 - 9, welche Sicherung "davor" ?

Hallo zusammen,

ich habe jetzt erst gelesen dass die integierte Eingangs Sicherung nicht austauschbar ist, das ist nicht schön!


Welche Kapazität hat die interne Victr. Sicherung damit ich weiß welche Kapazität ich davor klemmen muss, um die Victron Sicherung zu schützen ;-)

Es ist kein Aprilscherz!

Ich nutze den DC/DC als reine geregelte Konstantstromquelle für hochwertige elektronische Geräte im Kastenwagen. Mehr als 5 A werden da nicht durchgehen.


PS: Ich hoffe das Post kommt im richtigen Bereich an, diese Art Forum ist mir etwas fremd ...

bfg asked
kevgermany answered ·

1 Answer


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