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MultiPlus Quattro Inverter Charger

Black Start scenario/recovery.

Hi, all

We recently design standalone power system using quattro 10 kVa inverter and venus gX controller and a UPS. Client need a report for black start scenario/recovery. I do not quite understand this question, Anybody has a idea. Many Thanks

john2019 asked
seb71 answered ·

1 Answer

Configuration of the MultiPlus 3000 to allow AC load only when plugged to shoreline.

Hi everyone,

Does anyone know if the MultiPlus 3000 can be configured to allow the ac load only when plugged to shoreline? I want to make sure that my ac load is only working when I am on shoreline, and save the lithium house batteries for the dc load.


esam asked
Matthias Lange - DE answered ·

1 Answer

Multiplus shuts down when trying to use Air Conditioner 24/2000/50

Hey all,

I just setup my Multiplus 24/2000/50 Compact and all seems to be working fine until I tried to turn on my AC.

while leaving the Multiplus in “on” position and plugged into 30amp shore power I turned my AC on and the surge when the compressor turned on made the multi shut down.

I have had my rig parked in the same place for the last 4 months and have had to run my Air con a few times before I setup the Multiplus.

I also tried to run it while my generator was running and that didn’t work either. But I used to run my Air Con off the generator no problem before.

I do have to switch on the “weak AC” setting to get the generator to work but still won’t allow the Air Con to work.

Should I be running the multi on “pass through”? (not sure how to set that yet)

Do I have something wrong in the settings?

does the Victron only allow me to use 2000 watts when I am connected to shore power? (Doesn’t make sense to me)

My generator is 4000 watts and still doesn’t let it happen.

I tried it with everything in the rig off except the Air Con and it still didn’t work.

I am running a 24/2000/50 multiplus compact and a 24 volt 206ah prismatic battery set from LYNX batteries out of Washington state. The battery connections use 4awg wire. Battery is rougly 2 foot away from the multi.

Is the only way to make this happen is to get a soft start for the air con?

journeyoutloud asked
journeyoutloud answered ·

4 Answers

Quatrro inverter shutdown on Pylontech low battery


Recently got a system consisting of:

1x Quattro 48/3000/35

2x Pylontech US3000c

2x BlueSolar Charger MPPT 150/35

1x CerboGX

As part of my testing I ran a load until shutdown. What happened is that the whole system turned off at the low voltage point. The Pylontech shows the RED alarm LED. The Victron setup does not seem to see any DC power at all at that time (touch display off etc).

It would be nicer if there is a shutdown mode where the inverter is disabled (but still powered, just not generating AC). That way the display still shows what is happening. At some point the batteries are going to turn off completely and then whole system will be down.

I've had bad experience (with another vendor) where it becomes a real struggle to get the inverter/charger to wake up when there is (generator) AC, but not DC yet.

Is that not an issue with the Victron, as soon as I apply AC the system comes back to live?

Also, when the system was in shutdown, non of the console commands on the Pylontech seemed to indicate a powered down state :) I must be looking at the wrong command since the inverter saw low voltage over CANbus. What is the correct command to see historic shutdown reasons?


bas-rijniersce asked
Alexandra commented ·

2 Answers

How to fit a remote switch to inverter - for dummies


I'd like to add a remote switch to my MultiPlus 12/500. I was intending to get a 3 position rocker switch but am now pondering the digital multi control because it might be nice to have the extra info on what the multi is up to.

I don't know if my system is ve bus or non, but only have 1 AC source.

Is one switch better than the other? Apart from the extra monitoring?

Is one going to be easier to fit than the other?

Will I just be running 1 utp cable for the digital control?

Thanks in advance!


missy asked
Matthias Lange - DE answered ·

1 Answer

AC connect 3kW wind turbine Victron Quattro System

I have a Off-Grid Quattro 10kVA with AC Connected 3kW Fronius Primo solar inverter and 4kW of solar panels. Frequency shift is used to manage battery overcharge. System works great in summer but we are expanding for winter with additional solar, and a wind turbine. We will AC connect an additional 4kW Fronius and solar array. For wind, we are installing a 3kW 60V AC turbine that will rectify to 48V DC and this feeds to a grid tie wind controller/ inverter (China Supply) that will synch to the AC Bus. The controller will dump power to dump resistors to protect the turbine from over speed/ voltage/ frequency.

However, i am concerned the Wind controller inverter will not spill turbine power (trigger dump resistors) when the AC Bus frequency is shifted by the Victron Quattro (High batrery voltage). Logic tells my the inverter would disconnect on high AC Bus frequency and send all power to dump resistors, though I cant be sure and manufacturer info is sketchy.

My question is whether it would be possible as a back-up to use one of the quattros Programmable relays to trigger when the AC Bus frequency is shifted to say 53hz. In this way I could trigger dump resistors to spill wind turbine power when it is not needed for House Load or battery charging.

gallows asked
mvader (Victron Energy) answered ·

1 Answer

Quattro/Multi Temperature Derating/Overheating behaviour in AC coupled mode

Just asking for some confirmation of what I believe I am seeing here,


This data is showing the quattro temp derating in AC coupled mode correct? The stepping of the AC output frequency and corresponding PV inverter yield coincides with the temperature warnings. The co-located MPPT yield is not throttled, the batteries are at ~65% (LA) and are in absorption, however the throttling is seeing the voltage not holding.

To me the device looks like its heat saturated, The PV Inverter reductions are too symmetrical and correspond with the temp warnings to be clouds.

It would be great if there was an indication the unit was derating or a internal temp sensor to verify.


So have a little more info from the site, the fans in the unit are slowly winding up then try to go to full speed and shutoff, this happens at exactly the same time the unit derates.

This leads me to believe that the power bus that runs the fans is exceeding its current and shutting down. Maybe by a self resetting fuse?

This unit runs a small island so sending the unit away will have problems.

It is possible for victron staff to look at any more internal data via the console to possibly determine the issue?

@mvader (Victron Energy) @Guy Stewart (Victron Community Manager) @Johannes Boonstra (Victron Energy Staff)

alan asked
alan edited ·

0 Answers

Multiplus 12/3000/120 dead (no LEDs come on, no AC out)

Installed Multiplus a week ago in a camper van (simple setup DC in, AC Out-1, GX 200 remote), tested at that time and had AC power supplied to 120V outlets. Just a few days ago, tested again, still had AC power in outlets, but after driving for 2 hrs AC output was no longer working. I checked the Multiplus - no LEDs come on when switching the unit on (not even then 'Inverter on' LED). When I flip the switch on the GX, the remote lights up briefly and I can use the knob to modify max current on the display; I also hear some kind of a relay clicking in the inverter when switch on the GX is flipped.

I unplugged the GX cable at the Multiplus and measured DC voltage supplied to the bolts/terminals on the inverter itself: 13.3V in 1st test, 14.2V after driving back home. I hope this is something simple that can be resolved without shipping the inverter back to the supplier. Can anyone suggest what can it be?

Here are some details of my setup:

3x 100Ah Battleborn lithium batteries, connected thru 4/0 cables + 300 Amp fuse on the positive to the inverter DC input. Have AC-1 out connected to a circuit breaker panel (50Amp breaker). I also connected wire to AC-In-1 for future charging from shore power (the other end of this cable is not connected to anything for now, with each conductor well insulated with tape). Have GX 200 connected with regular CAT6 cable. The inverter is installed horizontally on its left side (i.e. left side facing down); there is a cutout in the shelf so that the handle/vent on the left side of the inverter can suck in air.

maciekp asked
maciekp answered ·

8 Answers

Cleaning MultiPlus Internally.

Has anyone got any recommendations on "How To Clean The Internals of MultiPlus Units" ?

Unfortunately one of my units has been collecting Diesel Soot from a blowing exhaust !

Answers on a postcard, (for those of a certain age )lol.

Andrew Jefferies asked
Andrew Jefferies edited ·

0 Answers

How to physically remove temperature probes

Can anybody tell me how to physically remove the positive and negative temperature probes from the little socket on a Multiplus (or any other Victron product) . I've tried but dont want to destroy them. They do not want to budge..


falco asked
Mark Maritz edited ·

3 Answers

Generator Warm Up, Charger walk in

Is there a way to gradually increase or limit charge current on a Multiplus / Cerbo GX to allow Generator to warm up ?

Only presenting FULL charging load when it is warm.

Ideally it would be based on a Cerbo GX temperature input.

Any Help would be much appreciated.

Andrew Jefferies asked
Andrew Jefferies answered ·

1 Answer

Reinstated: Bug in Mutliplus AC Input Control? (v481)

Sorry to flip-flop on this report. I let my Multiplus cycle through two AC Input Control cycles, and the problem persists.

The problem is that the AC Input Control is not respecting the voltage trigger that I set, as you can see in this short video.

Update: It occurs to me that perhaps the problem here is that the Mulitplus had been triggered to turn AC Input On until Bulk Charge was reached. But after that process started, my AC Timer turned off the power to the Multiplus. If so, then it is probably simply tryng to finish the last cycle that it had started.

pmikep asked
pmikep commented ·

1 Answer

Looking for old Doc "VE - Interfacing with the Phoenix Product Range”.


im looking for an old doc regarding interfacing with old VE.9Bit Devices

It is referenced in an stil lavailable document about interfacing with an mk2 adapter

For communicating with older (VE 9-bit RS485) products, refer to “VE - Interfacing with the Phoenix Product Range”.

i know old devices can not communicate with venus but i also know old devices can talk to the current victron config 3 app through an mk2 adapter talking ve.9bit.

i have an old multi around where i can configure and connect trough the current victron config 3 app with an mk2.2b usb to serial adapter (for communication handling see the linked pdf chapter 3.4.

with the old doc i hope to get more insight about the communication to create an open source driver for venus integration in combination with an mk2 adapter.

any help/info is greatly appreciated, victron won't supply the old doc sadly.

if anybody could send me the doc i would be very thankful -


ehspill asked
ehspill edited ·

0 Answers

Multiplus Stops Charging

I'm at the end of having any idea what to do next. Here's the setup...

Victron Multiplus 12/ 3000/ 120

Smart Solar MPPT 150/100


4 Battleborn 100ah Batteries

4 325W solar panels

This is installed in a 2004 Tiffin Phaeton

Connected to shore power

Solar is switched off for testing Multiplus

I am 67 and have an extensive electronics background

The Issue
The past several months, and it seems like this happened after installing a BIM in place of the charging relay, the Multiplus will run as expected for roughly 48 hours. After that, the charging stops, and batteries begin to discharge.

If I switch off the Multiplus - or disconnect it from shore power - for a few minutes, the Multiplus will begin charging again (Bulk @14.4v) for several hours and then drop to 13.56V. Eventually, I will see there is a zero amp draw, even with all our equipment running, it occasionally drops to -.5a for a short time and returns again to zero. Batteries are then fully charged and all 12v systems we have running are supplied by shore power.

It will stay this way for 36~48 hours and then, a 7 or 8 amp draw shows up, the system stops charging, and the process repeats.

Looking at the color monitor, the marching dots show the Multiplus is supplying power to all A/C. However, the batteries are actually supplying the power because they are quickly being drained.

If I disconnect from shore power, there is a change in the display. Marching dots from batteries to the inverter to coach outlets.

Reconnecting shore power, the inverter starts charging again. Marching dots to a/c load and also to batteries (bulk charging at this moment).

Smart Solar voltage: 13.22v
BMV Voltage: 13.02v
Shouldn't these be the same???

What I've Tried
For starters, I fully disconnected the BIM. The charging system seems to remain fully active for days. I reconnect it, and within roughly 36 hours or so, the Multiplus charging stops. At that point, I switch it off and on or switch shore power off and on at the receptacle... Ready to run again for a few days.

Like you reading this, I thought the BIM was the issue - and maybe it is. But what I have been told about this device tells me it is either switch on or it is not. I have checked dozens of times. It is switched off. That mentioned, it will occasionally click on for a brief time (less than a minute) and switch off. I'm told this is expected and would not cause the issues we have.

I removed each battery to check voltage. Fully charged, 13.56v. During discharge, it goes as low as 11.8v.

As I write this, there is a strange 5.8 amp draw, though nothing has been switched on and different since noon today when all was well and the draw was 0.5 amps. Currently, my voltage is 13.06v. The charge shows at 88% and dropping slowly. It was at 100% three hours ago.

The starter battery trickle charge is connected to the starter batteries from the Multiplus. It drops to 12.55v during failure times and returns to 13.49v for a short time, then on to 12.7v when all is working well after a restart.

I have no idea what this issue is. Is the Multiplus faulty? Is the MPPT faulty... though the solar panels are currently switched off, the MPPT is connected. Is this issue due to the BIM we bought from Battleborn?

One final item; The color monitor (Victron) will not show there are any traveling beads going from the inverter to the batteries during the failure. Likewise, while watching the Victron app while all is working correctly, if the amp draw drops below 0 amps the system shifts rapidly from "Infinite" to "nanm" to 10 days. If charging is working correctly, it jumps back to Infinite within a few minutes. However, when it fully fails, ten days drop over a few hours to only a few days or a few hours... all the while connected to shore power.

I simply can't figure out WHAT to look at or test next.

The shore power switch (permanently mounted inside a bay on the coach) is brand new. Shore power, as I have carefully monitored it, never changes at the Multiplus or the pedestal.

I've taken this apart so many times, checked every connection, and carefully reconnected according to the schematic we originally used to install this system...Which worked flawlessly for nearly two years before this happened.

I'm thinking the Multiplus is failing... But how do you test something like this???

Does anyone reading this have any ideas... If so, thanks in advance. I really am at the end of reasoning this out.

Jerry Wills

xpeditions asked
Guy Stewart (Victron Community Manager) commented ·

0 Answers

Multiplus Aux trickle charge function

Does the Multiplus trickle charge function operate when there is no AC connection to shore/generator power? Hopefully it will still top off the vehicle battery while off grid.

Thanks for any info/experience you have had.

philip53 asked
jdubbayew answered ·

3 Answers

Low Solar Amp Conversion from Watts?

I'm chasing another problem with this system, that I haven't been able to pin down. I'll give you a short amount of background, in case it's relevant.

The system originally was 2 quattros in parallel, 10 Victron Lithium batteries (300ah) and 8 100/30 mppts. I share this, because I observed in the previous setup before anything was removed...nearly 60amps charging and the owner at that time stated that it would get to 100 on a bright sunny day with no clouds.

As part of buying this boat, the previous owner took one of the quattros and 5 of the batteries. I have replaced that quattro since, so now the setup is

2 quattros in parallel (5000/12/220)

5 x 300ah Victron Lithium

8 mppts connecting about 3k in solar panels.

Here's where the issue comes in. In the middle of the day, when the sun is directly overhead, and I'm generating 1600 watts of soloar (as measured by the quattro on the cerbo screen) - I will barely reach 20amps charging, usually less. My idle draw is about 15 to 20 amps, but its always been that, so observing 60, means the production at that point was 75 to 80. Right now I'd expect 133 amps raw, before any loss or conversion or vodoo that happens between components. I think it's reasonable to guess while generating 1600 watts of solar, that I should see 100 amps (mins 15 to 20 idle)....Am I incorrect?

I know that the mppts will downscale, I've appropriatly measured the battery SOC so they should bulk, measured the temp so there are no temp issues (unless there's some settings that arent correct), and I have access to all the MPPT's through the VRM for their settings if those need tracked down.

I also know how complicated all the settings can be between MPPT's, quattros, batteries...etc. So I'm looking for some help tracking it down. I can been the hammer, just need the person to wield the tool and get me there, or tell me it's working as intended.

Thanks in advance, I love this community and how everyone helps.

P.S - If there's a victron "expert" in the area of Caribbean Martinique (or you are available to fly in) I would absolutely love to talk to you.

Bryan asked
seb71 edited ·

2 Answers

Quattro Stuck in Passthru

Hello, I’m hoping someone can help with my issue.

I have a 220/12/5000 Pair of Quattro’s running in Parallel. For the most part everything is operating as it should, and I don’t notice anything unusual. They’ve been in this configuration about 7 months now. It’s a marine configuration, so I’m not running anything related to ESS or anything requiring anti-islanding. The other questions / solutions I’ve seen with this issue all seem related to that system.

The issue has risen for a 3rd time now, and I’m really unsure how to proceed. At some point, the battery will get low enough that the inverter will shut off. Somewhere between 50 and 60% state of charge. This usually happens when theres an unexpected loss of power in the grid shore power, or generator breaker pops and we are unaware.

At this point, restoring grid power or generator power will put the quattros in passthru mode. The batteries will not charge. I usually have to wait until the MPPT’s charge the batteries back up enough to kick them out of the danger zone before I can get it back to normal.

Yesterday when this happened, I was able to remove the BMS assistant, and the BMS from the system and get it to kick into charging mode I have an overall BMS problem? If I do, it will be the 3rd BMS in 7 months.

Thank you in advance for your help.

Bryan asked
Bryan answered ·

3 Answers

Multiplus 24/3000 violates input current limit settings

How do I prevent the MP from exceeding the input current limit settings?


Stephen Otto asked
88benjy88 answered ·

1 Answer

Multi charge cutting out

Hi my multiplus (old 24 3000 70) with analogue control panel charges my Lifepo4 batteries fine up to around 8amps of shore power (45amps @ 27.3v). Anything above that and it cuts out, charges or a few second and cuts out again. The result is I can't charge my Lifepo4 battery past about 26.9v resting voltage. Has anyone heard of this happening?

damjeff asked

0 Answers

Can I use auxiliary battery charger output (4 amp) on MultiPlus compact to charge a AGM start battery?

I have a new MultiPlus Compact inverter/charger. I see a 4 amp output for auxiliary charging. Can I use this on AGM start battery for charging.

cwvandy asked
cwvandy answered ·

2 Answers

Grid assist application

Hello everyone.

my question is about grid parallel.

can i add to the Grid source the power of the Inverter when the load is high and prioritize the Pv power first

Can the load go over the max and be bigger then the nom power or the courant of the MultiPlus so the inverter can be underrated compared to the maximum courant required by the load

I have a 3 phases system with high load (2 pumps. AC, heat system plus the house consumption ) and i want to install 3 MP3000/48 in parallel so i use PV and when the load is high it powered from the grid.

i heard about grid assist but i have no idea how to make it run..... how to do that in practice

Thank you

redsam asked
michaelvausr answered ·

1 Answer

How can I disable battery charging on a multiplus compact?

My system is on a boat with a MultiPlus Compact 12v/1600va/70a and a digital multi control panel.

I have 4x175w Victron PV panels connected to a Victron 100/50 MPPT controller.

My understanding is that both the multiplus and the mppt are both charging the battery bank simultaneously whilst connected to shore power. Can I turn off battery charging on the multiplus so that batteries are charged only using the solar power via the mppt?

I need AC shore power whilst in the marina so can’t turn the multiplus off completely.

fruityone asked
seb71 commented ·

1 Answer

What settings for MultiPlus Compact with RELION Low Temperature Lithium batteries

Hi everyone! Thanks for looking at my question!

I have a 600Ah Battery bank (2x RB300LT batteries from Relion) The batteries are specifically designed for low temperatures with built in heating elements, controlled by the BMS.

My question:

Are there any specific inverter settings that would optimize safely charging these batteries during low temperatures? And, if so, when the temperatures warm up, would I need to modify these settings?

Ideally, I would like to be able to set a range, and not for the seasons if possible.


Equipment list:

Van conversion-
Inverter: Victron Multiplus Compact 12v/2000w/80amp

Batteries: 2x RB300LT batteries Relion

B2B: Sterling 60Amp (1260 model)

Alternators: 2x Factory Installed 230Amp alternators

millennial-mountaineer asked
millennial-mountaineer edited ·

0 Answers

MultiPlus firmware update and ship shore power supply

Getting ready to update the firmware on my Multiplus 12/3000 installed on a shore power connected sailboat. The ships computer will be performing the update, but is powered by the shore power or via the inverter. While updating the Multiplus, will my vessel loss shore power and thus power to the ship computer during the firmware update?

gscriba asked
Kevin Windrem answered ·

2 Answers

RCD Tripping randomly

I have just about installed Multiplus 48/1200/13 and hooked it up to Li-ion 14s1p batteries.

It has been working perfectly in UPS mode and pass through. To test the capacity, I turned off the mains and the UPS kicked in, I let the system run - till the cut off voltage was reached.

When I turned on the grid/mains - the RCD (on the mains consumer unit) tripped. It did this a few times. I disconnected the load and the same happened (rocker switch in ON position). Then I switched it to charger and it did not trip.

I tried various combinations and unfortunately - the RCD tripping is very random and not reproducible.

AC in comes from the grid

AC out goes to feed a total of 250W (a few pumps)

Any input or help would be appreciated.

ispookie666 asked
tedr answered ·

6 Answers

Multiplus not switching back on with Venus GX


When I switch off the MultiPlus 12/3000/120-50 with firmware 413 with my Venus Gx Remote Console with firmware 2.60, I can't switch it back on.

The workaround is to disconnect the network cable on the MultiPlus and reconnect it again.

This should be a known issue because I got the workaround by one of your installers.

My question is: Can VictronEnergy do something to fix the issue?

Thanks and regards,

Francesco Pugliano asked
Francesco Pugliano commented ·

4 Answers

Help!! 19XXXXX "General Error Occurred" at end of VEFlash update

Hi there,

Relatively new to the Victron world but I've got a multiplus - a 24 3000 70 - Hex.1912125 and I need to update it to the latest firmware in order to connect it to Victron Connect.

- I downloaded VEFlash

- I downloaded firmware version 1912209 (is this correct) via Victron Professional?

- I have a MK3 dongle.

- The multiplus is recognised by my PC

- I'm running windows 10

However upon going through the VeFlash update I get to the very last screen (after it says it's uploaded etc.) and it says "General Error Occurred". How on earth do I resolve this?


damjeff asked
damiano edited ·

1 Answer

SOC calculation worse with latest Multiplus firmware

First, let me say that I understand that, for my setup, the Multiplus's calculation of SOC will inherently be incorrect.

(Right now I have my battery bank being charged by both my Mutliplus and occasionally by my SmartSolar MPPT. So the Multiplus cannot see the current being fed to the batteries by the MPPT.)

Still, the SOC calculation was better with the firmware immediately prior to v481 that is now.

And I think it can be "hacked" to do better, as below.

Consider the following two screen shots, taken at two parts of the day.


This first shows the battery voltage is 26.56V and the SOC is 57%.

Now, as the day progressed, with solar charging, the battery voltage has increased to 26.82V. But the SOC has decreased to 31%!


I know that this incorrect SOC calculation is because the Multiplus is (apparently) looking at current only, and has seen 7 to 8 Amps leaving the battery all day, but is not seeing current coming in from my MPPT.

But as I said above, the previous firmware of the Multiplus handled this situation better.

Might I suggest a software hack, that when the battery voltage increases, the SOC calculation be prevented from displaying lower? That would solve the false low SOC reading in this case.

pmikep asked
pmikep commented ·

3 Answers

Victron Blue smart 12/20 tripping RCD

Hi what is the 240V current draw for my Blue Smart 12/20 charger as it keeps tripping my RCD i think the RCD switch may be over the peak draw and hence the tripping but cannot find the information on data sheets?

darren-brown asked
wkirby answered ·

1 Answer

Multiplus 2000 Buzz and Current Draw and fans.

I have a new, out of the box Multiplus 2000, 12V on a test bench setup. Feeding it is 280AH of Lithium @ 13.5V. I start the inverter and it's quiet. I put a load on it via a heat gun and it immediately starts a loud low frequency buzz. The heat gun pulls 70Amps of from the pack measured on the BMS and a DC clamp meter, but Victron Connect shows -43 Amps. All connections are tight and double checked. Wire Gage is correct.

There is also a fan and temperature fault issue. When both fans come on during inverting or charging, they struggle to blow at full speed and emit noise (not wind noise, a fast clicking is the best way to describe it) and the Multiplus eventually goes to temperature fault then shuts down some time after the fault. Before the shutdown, I unplug one fan (top of board, Right Side Fan) and the remaining fan jumps to full speed, as normal, with no clicking sound. I plug the right fan back in and both immdiately go to clicking, slow down and appear to struggle. The fan voltage on the top connector with no load is 8V DC.

Anyone have any ideas?

dishusa asked
dishusa answered ·

2 Answers

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