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Choosing a DC-DC charger - truck camper with LiFePO4

I'm looking into buying a DC-DC charger for my truck camper, but I'm unsure which one. Here are the details of my setup:

- Truck: 6.5L diesel engine with 100A alternator, 2 AGM starter batteries (12V parallel)

- Camper: 200Ah LiFePO4 batteries, 8AWG wiring on the DC input

- Alternator outputs around 13.5V, LiFePO4 batteries need around 14.5V (i.e. stepping up the voltage is a must)

Based on those details, it seems like the Orion-Tr Smart 12/12-30 would fit the bill, but I'm concerned about the following:

1. Does the Orion-Tr Smart require a remote connection to operate, or can it switch on and off based on input voltage reading alone? I'm going to install the charger on the camper, so I won't have access to the ignition switch, so the only way to determine if the motor is running is by measuring the input voltage - can the Orion-Tr Smart do that?

2. Is 30A reasonable for 8AWG wiring with a 100A alternator? It seems to me like it would be OK, but the charger will be far from the alternator (probably around 5-10m of wire).

3. Is the Orion-Tr Smart the most cost-effective solution for my use case? Another option is the Orion-Tr (without the smart part), but I'm not sure if it can handle LiFePO4 charging.

Thanks in advance to anyone who can help me with this!

theodk asked
Granada commented ·

2 Answers

Wire 2 Orion DC-DC Converters in Parallel

I see in the manual for my Orions that up to 5 units can be wired in parallel. I'd like to put two units (70 amps each) in parallel. Can someone look at my wiring plan and let me know if this is correct? Thanks for the help!

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miami337 asked
Paul B answered ·

1 Answer

BYD LVL and Orion

Question to check use of Orion 48v to 12v on a BYD LVL system. Are there any concerns to be aware of, e.g management of discharge and battery protection. Would battery protection be controlled by the BYD's own protection or does something need to be done with a relay from the GX to control the On/Off of the Orion? Thanks

OGRT asked

0 Answers

Orion-Tr Smart 24/12-20A (240W) Isolated DC-DC converter: External Fuses

Hello community,

Orion-Tr Smart 24/12-20A (240W) Isolated DC-DC converter: External Fuses

I am confused about external fuses required in a system with the above device.


The spec shows 25Amp maximum current under nominal operating voltage and 50Amp short circuit on the 12V output channel.

[image]


But the fuse advice in the manual is for 30 amps on the 24V channel and 60 amps on the 12V channel - surely these are too high?

[image]

I am specifying the integration of this component and am looking at advising 25Amp (24 volt channel) and 50Amp (12 volt channel)


Any confirmation would be appreciated.


Andy

andrew.g asked
Sten answered ·

2 Answers

ORION TR 48/24 380W switched by ve.bus bms

We have a setup where we want to charge a 24V lithium battery bank from a 48V source by using ORION DC/DC 48/24. The 24V lithium bank is managed by a Victron VE.bus BMS. Can we connect the charge disconnect on the BMS directly to the "H" connection (remote) on the Orion to switch it on and off ? Or is there a better way ?

Chris45 asked
Lysdexia answered ·

1 Answer

Orion 24/12 70 amp

Hi

I have a 24v Victron lithium setup and have 12v loads. I am using an Orion 24/12 70 dc converter and wondering if you need a battery protect or can use the BMS load disconnect to turn off the Orion directly.

Thanks

Grant


IandDIndustries asked

0 Answers

Orion Smart 12/12-30 Current Limiter

Hello, how is Orion Smart 12/12-30 deals with a 120A coming from engine alternator, it doesn't have current limiter same as Buck-Boost Victron units.

MoMahmoud asked
cookinwitdiesel answered ·

2 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?


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antswift asked
antswift commented ·

1 Answer

Orion-Tr 12/12-30 for lithium

Hello, i bought a Orion-Tr 12/12-30 by mistake, i should have gotten the smart version.

Well the non Bluetooth version work well with lithium or should i send it back and change it?

I have a lifepo4 300ah victron smart battery.

thanks

MrDias asked
Justin Cook - Bay Marine Supply USA answered ·

1 Answer

Electrical system recommendation for offshore sailing yacht

Hi Victron Community,

I hope these stressful quarantine days find you well.

Let me explain what I have and what I want to accomplish and maybe you can help answer some of my questions and concerns

I am making switching to electric propulsion on my 43'(13.1m) yacht since the 40 year old Diesel Buhk/hydraulic drive system has seen better days.

For this I am installing a Fischer Panda 8000 NE PMS 230VAC 50Hz max power 6.5kW

The propulsion motor I am considering would be 48VDC with around 15 to 20kW of power with an expandable 48V 100 Amp-Hour battery bank

I also want to solar panels provide some level of charge as I am planning on cruising to the south pacific islands.

I have been considering the EasySolar II GX setup since it seems to have all of the parts in one unit.

One of my fears is that it's IP rating is 2.1, which would mean that I would most likely have to install the unit in dry locker that is constantly ventilated.

Would you recommend going this route of would you go for separate components for each one of the functions of the EasySolar unit, meaning, separate charger, inverter, MPPT solar charge controller, battery balancer etc... Price would not be an issue, as I estimate the costs of having to replace the EasySolar unit would offset going the separate route.

I think it's a big decision and it's possible to argue for both configurations:
1.On the one hand would like the fact that I could maintain each of the functions separately in case either of them fails, whereas with the EasySolar I imagine it would be very hard to debug issues since it seems like it would all be bundled together, and the low environmental rating makes me think it would not be very well suited for the marine environment.
2.On the other hand having everything centralized in a neat small package would make it indeed easier to accommodate in a very well designed dry locker with proper ventilation and possibly a small dehumidifier.

I apologize for the long message, but I seem to have a lot of spare time these days and it's got me wondering.

Let me know what you think.

Kind Regards

Max

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Max Salgado asked
Max Salgado commented ·

2 Answers

Solar / pump project

Hi All,

My apologies for the basic level of these questions!

I have a project in mind and I really need help because I don't want to make mistakes.


The project is to using solar panels to power water pumps to provide water (from a stream) to my crops.

So, I planned to buy:

- 6 solar panels of 300-350w each

- 6 water pumps of 240w (CC 24v / 10a or 12v / 20a) each


My wishes :

- Ideally, each panel feeds and controls its own water pump.

- No need for storage / battery

- Remote control management

- MPPT system to optimize performance

- But most importantly: I want to have a regenerative system in case the water pumps are not needed or when the solar panel delivers more power than necessary.


What are the equipment needed for this installation?

Thank you in advance for any help!

Matth

InCree asked
dalewright answered ·

2 Answers

Non-Isolated vs Isolated Orion-Tr Smart DC-DC Charger

Hi all,


I have a VW Caddy van that I’m converting to a camper. It’s a modern one with a silly euro 6 alternator and some I’m on the understanding that I need an Orion Smart DC to DC charger, specifically the Smart one to charge my Victron AGM battery (in time this may become a lithium).

If I’m planing on using the chassis as a ground for both the starter battery and the leisure battery combined, do I need the isolation?

Thanks

Cwoody asked
Justin Cook - Bay Marine Supply USA answered ·

1 Answer

Wiring diagram for Orion 24/12 25amp?

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I have looked all around victron site but could not find a wiring diagram for the Orion 24/12 25 non isolated converter.

I am using it on a 24v system for 12v accessories. Running 2 in parallel for 50amps (or May just use one and leave the other as a backup)

Instructions state the negative terminals are bonded inside. If that is the case, can I ground my fuse panel to my 24v system buss bar and only supply a negative 10guage conductor to one of the negative terminals? Why are there 2?

Leftishut asked

0 Answers

Orion TR Smart DC-DC to charge boat diesel starting bank?

It's good to see the Orion Smart series officially announced on the blog today:

https://www.victronenergy.com/blog/2019/10/10/new-product-orion-tr-smart-dc-dc-charger/

But while it's usually shown set up to use input from a vehicle start battery to charge an auxiliary bank, I want to do the reverse. In my case there would be two alternators on the same 450hp boat diesel feeding a 440ah Firefly AGM 12v house bank with the Orion Smart 12/12-30 supplying the smaller Dekka AGM 12v starting bank. That way I'd get more use from the alternators, plus alternator redundancy, and the system would be ready if I ever switch the house bank up to Lithium-Ion.

Am I thinking straight?

PS The boat already has BMV712/Smart Solar/Venus system that I greatly appreciate:

https://vrm.victronenergy.com/installation/30059/share/d9560ba7

How will Orion eventually integrate with the family?


BenE asked
Mike_G answered ·

4 Answers

External Fuse Size for Orion-Tr DC-DC Converter 48/12-30

Hello All, Wondering what size I should use for external fuse, I can't find it in the Datasheet or User Manual. Thanks! Peter

petermcgowan asked
petermcgowan commented ·

2 Answers

Using an ARGOFET after an Orion-TX to connect two BS in parallel

Hi everyone,

I have a smart alternator on my van and to charge my single BS from the BM I must connect them with an Orion-Tr Smart converter. I was thinking to extend my BS capacity, connecting another BS in parallel to the original BS. I would like to understand if it is correct to use an ARGOFET to manage optimally the charge of both BS without run into different BS charge and so different BS life. Thanks for your kind help.

[image]

Kind regards,

Luca

Luca Barbierato asked
Justin Cook - Bay Marine Supply USA answered ·

1 Answer

5V supply available? Maybe an Orion for the future? Suggestion

To run Arduino(s) or Raspberry Pi(s) for logging and distributing purposes in the switch cabinet quite powerful and stable DC DC converters are desirable. A single Pi wants 3 A, an Arduino Mega driving dozens of relays possibly more. I am sick and tired of using remote control car equipment which sometimes have a wide input range but dont last very long, get really hot or have a not good enough voltage so regular brown outs happen.

More professional equipment has then AC input which I don't want to have available at all times. DC Battery current obviously I have available.

Have I overlooked anything Victron putting out 5V slightly adjustable at maybe 5 to 10 A? Ideally with a wide range input of 12 to 48V but I will gladly accept current Orion steps so in my case 24/5 - 5 galvanic insulated? If it then had regular clamps and also full power USB ports, that would be epic...

ripper asked
Daniël Boekel (Victron Energy Staff) answered ·

3 Answers

Why is the breaker tripping on Orion tr smart?

Edited to add: I checked the orion, all breakers in my electrical box are untripped and all wires etc look OK. I flipped the breaker near the battery back on, the Orion powered up and appeared in the app. Then the breaker tripped again even though the engine was not running.

Next step is looking in the battery compartment in daylight!


  • I have fitted an Orion tr smart 12/12-30 in my campervan. I have run 16mm2 cable from the starter battery to the orion with the positive going though a 50a breaker - all as advised.

I drove for an hour just after fitting it and was able to see it working via the app.

A week later, I'm driving to the Eurotunnel and the breaker has tripped. I reset it, and after 10 seconds or so it trips again (engine running all the while)

I haven't had a chance to look at the Orion yet, it's in the back of the van, but I thought I'd ask in case anyone can think of an obvious reason for the breaker to be tripping!


Cheers

Missy



missy asked
missy commented ·

3 Answers

Intermittent fault with Smart Battery Protect

I have a Smart Battery Protect 12/24 100A being used as part of a lithium system with a VE.Bus BMS and an Orion 24/12- 70. Basically, I am using the Smart Battery Protect in Li-ion mode which is controlled by the load disconnect on the VE.Bus BMS, this circuit is the supply for the DC House panel.

The problem I am having is that there is an intermittent fault where the Smart Battery Protect gets stuck on “Attempting to activate” (in Victron connect) and causes the RV interior lights to constantly flash on and off. Occasionally after being stuck on “Attempting to activate” for a while, it will display an E1- Short circuit error (both on the unit and in Victron connect); however, I am 100% certain that there is no short circuit. Sometimes it will work fine for hours, and then if the breaker for the house panel is switched on and off it will then get stuck in this fault and it is nearly impossible to get it working again.

So far, we have tried a second DC-DC Converter, a second working battery protect and are still getting the same fault. The cable runs to the input and from the output of the battery protect are appropriately sized, and the BMS is in the same compartment so the ground wire and the load disconnect to Remote H on the battery protect are only approximately 0.5m. We have since discovered that we can trick the battery protect into working every time it gets stuck in this fault by briefly touching a 24V supply on the output of the battery protect.

Has anyone experienced this problem before and discovered a solution?

linky asked
linky commented ·

2 Answers

Alternatives to having x6 Orion-Tr 24/17

My system: the LiFePO4 is charged by a second alternator 24V/110A, so it is independant from the starter 12V battery.


Does anyone know of a good 24V 100A battery charger instead of taking 6 Orion-Tr 24/17 (between alternator and battery)? Or is there a more costs efficient way?


Thanks in advance for your help!

MK1993 asked
MK1993 commented ·

1 Answer

Orion parallel installation

Looking for the correct installation method for parallel Orions. I understand the source would be from vehicles alternator and earth to chassis but connecting to the battery do you just run each to the pos and neg terminals? If running with MPPTs also, would the limit of 4 also be across all charging?

shanemalden asked
safiery answered ·

1 Answer

Orion 24/12_70

Installed an Orion dc dc converter. 24/12-70. Remote switch loop still in place. Tested voltage 12vdc switch board , 26.1 vdc. Tested at Orion the output was matching the input at 26.1vdc. Removed the remote loop and still had power at the output.

Looking for advice if I have missed something simple.

Rick Hendy asked
ColtarKDM answered ·

1 Answer

Orion-RT-Smart DC-DC engine run detection when installed in camping trailer.

Hi all

I want to install a Orion smart DC-DC in my camping trailer to charge the Blue Nova LiFePo4 battery from the vehicle alternator while driving.


I see on the data sheet the low cut out voltage is 7V which is way too low for my application, I want it to charge when the vehicle engine is running and disconnect when the engine gets switched off. How does the engine running detection work on this device, if it works on vibration then I guess it has to be installed in the engine bay in order to work?

Installing it in the engine bay won't work for me, I want to install it in the back of the trailer right next to the battery.


How can I get this to work, charge while vehicle is running and disconnect when vehicle gets switched off?


Thanks


Nick

bigboy529 asked
Daniel D answered ·

2 Answers

New install settings Victron Quattro and Victron lithium smart rv installtion

Hi. I have installed a system in my RV and tomorrow will be the big switch on :-)

its only a simple one for you technical wizzards and whizzetts


I am great at following instructions , diagrams but not so hot on anything that requires programming so i am hoping for some help setting the correct charging parameters for the Batteries.

My main concern is storing the batteries when not in use as they are likely to be fully charged after driving back from trips and the possible detrimental effect of storing at 100%

Also when in storage there is a little 12v used all the time as i run cctv on the vehicle etc so turning off the battery at the switch in storage is not going to work.

I can set a timer on the shore power to allow it a daily or weekly set charge to keepthe battery within ideal parametres. or even keep a manual check on soc and switch on the shore power as req.? I would be interested to know if i can just set the float at a lower voltage to keep the batt below 80% for longevity and just charge them higher to re-set the BMV 712?


I need some setting guidence really as this is all new to me :-)

I,m really sorry for the length of my question but i hope i have wrote it in such a form its easy to write answers to my questions.


The System basically is as follows,


2 x 150 amp smart lithium battery

BMS / Victron BMV 712 connected via VE direct cable to the CCGX and fitted with batt temp sensor

CCGX with Ethernet connection to a mobile sim modem / gen set start on the remote connections ( yet to be fitted )

Victron Quattro with inputs of 30a genset on AC1 and 30A shore power on A.C2 , trickle charge to Engine battery. temp sensor connected.

Victron BMS

VIctron smart Orion D.C. to D.C. 360W charger from engine battery to house battery ( set on auto-detection for engine running)

No Solar.

So i will number my questions hopefully that makes it easier for you to give answers. maybe you can just copy and paste it with any answers wrote below the number?


1. CCGX / QUATTRO. I intend to set up a VRM account. Is this where i can change all my parameters remotly via the web and direct to the quattro without using the dip switches on the quattro? or do i need a different piece of equipment? or does the CCGX allow access?

2. Quattro charging settings. My batteries spec say they can be charged up to 150amps but recommend 75amps.. The quattro has a 220amp charger. Should i set the charging current to 25% lowest setting or is 50% ( default i believe is 75% )

3.a Charging voltages. there are no printed dip switch settings for lithium in the manual ( page 18 ( 5.5.2 step 2 ) Lowest DIP setting voltage is for victron gels ( ab 14.1 / flaot 13.8 / store 13.2 ) do i use that setting for lithium if using dip switch ( to get me up and running if i cant adjust any other way )

3.b. what settings would you recommend if i can adjust them more using the computer software for my usage. if it keeps them below 80% i,m still happy

3.c What is the fastest way to adjust these setting if i were on a long trip and wanted to put my batteries to 100% charge to utilise all the available storage and what should i set them too.

4. BMV 712 what settings should be adjusted to make it read correctly other than the supplied factory settings. for 3a , 3b and 3c. I really have no idea whats available here but prob settings..

charged voltage

tail current

charged detection time peukert ? 1.05?

charge effieciency factor

current threshold


5. Orion Smart D.C. charger. is there anything i need to re-configure on this on the output? it has pe defined programs or you can set your own. My only concern was the engine battery trickle charger could fool the smart orion into thinking the engine was running ( i assume it wouldnt though as the alternator runs to 14.2v?

i am thinking that when i set off on a new trip the orion-smart could deliver the lithiums full 100% charge to 're-set the BMV712 as it would them allways read correct when i start a trip even if the quattros charging is set to a lower level?


6. smart batteries , shall i just leave them at there preset? miniumum charge temp 5 degrees etc etc?


That is all i promise unless you can give me any more advice on setting i havent wrote but an likely to encounter


jaywolfe asked
jaywolfe answered ·

2 Answers

Orion Tr Negative ouput on ground chassis

Hi, i use 2 Orion Tr in my motorhome and i want to know if i can connect the negative output on the vehicule chassis, because in some case, equipement was energized by orion or vehicule (with a relay to change the power supply of equipement. I don't want to have to many cables.


Thanks

Lambish asked
Lambish commented ·

1 Answer

Orion 12|12-30 replace Argo FET 100-2 ?

Hi, we just bought an Lithium battery to replace our house Acid batt. We figure we cannot use our old Argo FET 100-2 to connect to our Lithium batt. We are told we should buy the Orion DC-DC. Does this mean that we no longer need the Argo FET 100-2?

Can we use only the Orion DC-DC between our Acid and our Lithium?

zuzullo asked
zuzullo answered ·

3 Answers

Logging Wattage of different DC Circuits separately (CCGX, Orion, BMV)

Hi,

I convert my 24 Volts of my Batterie in 12Volts with two DCDC Converters.

In my OffGridSystem I use 3 different DC Circuits

  • - 24 Volt Circuit directly connected to the batterie for Camping-Fridge and some 24 Volt Camping equipment
  • - 12 Volt Circuit (max. 120 Watts/10A ) just for LED-lights and small consumers.
  • - and a 12 Volt Circuit (max.480 Watts/40A) for some Camping kitchen tool, Computer Chargers and other rather high Wattage Consumers.

With an BMV hocked to my CCGX I would have an overview about all consumed Energy.

But I’d love to log the Wattage of all 3 Circuits separate to find the Energy-Suckers in the System, and make Energy optimization, and potential Cut-Off (in case of low Battery and no PV Charge)of one DC Circuit more easy.

I think a possibility would be some kind of VE.Direct compatible Shunt, or DC Energymeter, that does not just Sum up to one “DC Load” in the CCGX.

Or is there an Orion DCDC Converter planned in near future that has VE.Direct and Logging features and for sure accuracy in Energy measurement. -->That actually would solve the whole Topic with one Device.


Any other ideas how i could measure, log, and Display 3 different DC Circuits with the CCGX ?

Greets and Thanks

Gernot

notger asked
Daniël Boekel (Victron Energy Staff) commented ·

1 Answer

Orion DC - DC chargers

Do they all do three stage charging like the victron site seems to say? This on 12v Orion doesn't seem to say that. Is it a firmware upgrade or do I need a different model?

bigbillsd asked
warwick commented ·

2 Answers

Orion TR DC-DC and Buck-Boost comparison

Hello everyone,

The topic has actually two questions:


1) What is the exact differcene (apart from price) in these two Orion DC-DC converters?

I have searched but not found anything in the datasheet (i may have overlooked)


Orion 12/24-15A (360W) ORI122436100 83 x 130 x 191 √1,4

Orion-Tr 12/24-15A (360W) ORI122441110 130 x 186 x 80 √1,8


The last one is isolated and the firts one is non-isolated? Because i have searched on the no-isolated datasheet and it does not appear there (the 360W one).


In the price list both appear under galvanic isolation DC_DC converters.


2) What I want to know (if anybody has done tgis in practice as well, it would be great to have the feedback) is the following:

I have a 12Vdc battery system and I need to up-convert it to 24Vdc to power up an MF/HF transmitter (radio) which consumes about 30A in transmit mode and 5A in receive mode.

So I would need around 720W of power. The question is:

- can it be done with 2 (or 3 for safety) Orion 12/24-15A in parallel or Orion TR 12/24-15 or better a buck-boost converter of 50A?


Please note that TX time is not continous, but can last when needed say 1-2 hours accumulated.


Thank you in advance for your replies.

Ender asked
warwick answered ·

1 Answer

What is the difference between the Orion and the Orion-Tr?

Specifically why would one pick the Orion Tr 48/12-30 (360W) over the Orion 48/12-360W?

Thank you for any help!

Peter

petermcgowan asked
Tom answered ·

2 Answers

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