BMV-712 After firmware upgrade

After firmware upgrade Voltage now showing 0.03 and Amps at around 1450A. Have anyone else got this ?

mossy asked

0 Answers

Anyone having a Bluetooth pairing issue with new iPhone 12 Max Pro with Apple iOS 14-14.3 for Smart devices?

New iPhone 12 Max Pro not paring with my Victron Smart devices. Latest VictronConnect 5.35 app being used. Getting weird screen never seen before. It’s not the default PIN code. All devices are showing this type of screen.


buzz654t asked
rtalbot answered ·

4 Answers

Differing voltage between SmartShunt and voltmeter

I recently bought and hooked up a Victron SmartShunt. It works like a dream on BlueTooth, and I thought this would be an accurate view of my battery state/usage.

For storage I have two Valence, 40ah RT Series 12v batteries hooked up in parallel. There is a substantial discrepancy in the voltage between my Klein voltmeter (MM300) and the Victron SmartShunt (500a) as follows:

Load (amps)
0 amps
13.15 volts
13.24 volts
.09 volts
4 amps
13.09 volts
13.19 volts
.10 volts

I have measured for voltage drops across my various connections and there are none. I have calibrated the SmartShunt to 0.0 amps under zero load conditions. But these should not be implicated in any of the voltage discrepancies. I see it as a battle between the Voltmeter and the SmartShunt.

The only remote caveat might be the Epever MPPT connection. The MPPT battery minus is connected to the 'system minus' side of the shunt, and the battery plus goes to the 150a circuit breaker, which goes to the battery. The circuit breaker is closed. Yet, I do not see that as influencing the differing voltage between the two devices.

Has anybody else come across this issue? Does anyone have some wisdom on this matter?

martyfarkle asked
raymiller answered ·

2 Answers

Parallel DC-DC Chargers 30A

Is there an end all be all guide to doing two Orion TR Smart DC to DC 12|12 30 in parallel?

Current setup consists of 1 charger, but when on the phone with Nomadic Cooling they mentioned a few issues with the electrical system. The first one being instead of using the Victron Manual recommended 6 AWG I should be using 1/0.

However I'd like to add another charger into the mix to and curious on best wiring and fusing options.

My first thought of wiring it would be run a single wire from the battery to a 2 stud bus bar and then branch it to each of the chargers. Is this the best idea?

To fuse this I figure a 100 amp fuse on the main cable and then two 60 amp fuses on the split cables?

Please let me know your thoughts.

william-moriarty asked

0 Answers

SmartShunt 500A base very fragile

I have purchase two Victron Products with the 500A shunt which has a black insulating mount, in both cases I've found that the mounting base is very fragile and brittle. The 500A shunt being a two 25mm brass blocks joined has significant mass, my latest unit had the mount cracked on delivery, while my first unit (BMV712) I managed to crack on installation when mounting.

The construction of the black base moulding has significantly hollowed out sections to reduce the amount of material but due to the brittle nature has no flexibility so cracks under any mechanical stress. As any cables or components which will be connected to the 500A shunt are also likely to be sizeable and heavy and the consequences of mechanical failure may be great, improving the mechanical strength and robustness of the base commiserate with the expected forces is highly desirable.

My repair consisted of filling the voids in the mounting with two-pack epoxy. This seems to add the required durability to the black base.

I'm sure I'm not the only customer which has experienced cracking issues with 500A shunt base. Please Victron could look into changing the design of the base to be substantially more robust than the current design and remove a point of failure would improve on an excellent product.

raymiller asked

0 Answers

Monitoramento com color control victron e solaredge.

Como faço a conexão do inversor solaredge com o color control, para fazer o monitoramento pela tela do color e pelo site VRM victron ??

jonathan-leal asked

0 Answers

MK3 interface to usb

Is an MK3 interface the same as an USB 3.0 to RJ45 interface?

The USB 3.0 interface communicates but there is no communication with my Multiplus Compact 12/800/35.

paulleten asked
sigmund answered ·

5 Answers

MultiPlus: Disable Charger based on battery temperature

I'm currently building an RV off-grid system based around a Lithium Tesla Battery and MultiPlus. In the system is also a BMV 702, BatteryProtect 220 and Color Control.

As the Lithium Battery really doesn't like to be charged below freezing temperature I'm planning to have an automated heating pad that keeps the battery warm, but I would like to have a fail safe which disables the MultiPlus Charger whenever the temperature of the Battery reaches 5°C

My current setup is to connect the BMV-702 Temperature Control Sensor to the Battery and then connected the BMV-702 Relay to the MultiPlus AUX1 which controls the Charger via the Charge Assistant. This works nicely, but I was wondering:

1. The MultiPlus already has a Temperature Sense Connector plus the Temperature Sensor shipped, when I measure the voltage of the Temperature sensor I get a reading of 2.6V at 25°C. Is there any datasheet of the Temperature Sensor that I could use to configure the MultiPlus Assistant for temperature? I would really like to not depend on the BMV for the temperature measuring and best have the MultiPlus measure the temperature directly.

2. I found the new Shared Temperature Sense feature of the Venus/ColorControl: which mentions:

the Venus-device will send the battery temperature to the connected Solar Chargers and Inverter/chargers.

But I don't see anything in the MultiPlus Configuration Screen to do anything with that Temperature or any other way that it actually receives the temperature form the Venus/ColorControl.

Plus just two other small questions:

1. Is there any way to see the current voltage reading on the MultiPlus AUX inputs? I'm having a bit a hard time to find the correct voltages to use in the Assistant

2. When I disable the Charger in the VEConfig all together, but then enable the Charger again via the Assistant based on the AUX1. The charger is actually running! That's a bit scary ;) Also which charge settings are used? I assume just the last settings of the charger before it was disabled all together?

schnitzel asked
durval commented ·

3 Answers

MPPT Control conection - only says "Connecting"

I've just installed a Smart Solar MPPT 150/45 and a MPPT control. The MPPT control only displays "connecting". Pressing the buttons doesn't do anything. They are connected with a VE direct cable. Is there something else that has to be done to get the display control to work?

jc1 asked
Daniël Boekel (Victron Energy Staff) commented ·

7 Answers

batt Capacity added - ESS reconfigure needed


I have a question about the ESS config.

At this moment I have 2 Victrons multiplus-2. They are managed bij Victron cerbo.

The battery is based on BYD Premium LVS 4.0.

For the configuration, I follow the Victron BYD documentation (

When I started with this setup, I had only one battery unit. So, the batt capacity was set 78Ah within the ESS config.

Later on, I added a batt module to increase the capacity. But I didn’t update the ESS config with VEConfig utility.

The Cerbo reports that 2 batt modules are installed. And the total capacity is correct.

Is it really necessary to change de ESS config? This gives a downtime.

The batt is charged with MTTP that also managed by Cerbo.


Config ESS -> one batt module


current config with 2 batt modules


theklaas asked
theklaas answered ·

2 Answers

GX Tank 140

Good morning,

I read a lot about the GX Tank 140 converter box which could be used to read voltage or current sensors at the Cerbo GX. This box has been announced by YE 2020.

Any update on the availability of the converter box?


modian asked
Justin Tierney commented ·

6 Answers

3+3kW AC coupled system design


We are designing 3+3 kW system. Because of financial constriction and pressing need to upgrade the current system we are planning to build our new system in two phases.

First phase would be 1 x Victron Multiplus II 48/3000, 1 x Fronius Primo 3.0-1 with around 4kW of PV, 320Ah 48V traction battery system (24 * 2V batterys) and Cerbo GX for system monitoring.

The second phase should be implemented next year. We would then add another Victron Multiplus II 48/3000 in parallel with the first one and another Fronius Primo 3.0-1 with around 4kW of PV.

This is a offgrid system, most of the power usage is during the day.

There is a 2kW generator for backup.

In addition to that we would probably add a micro water turbine (PowerSpout), also AC Coupled trough Ginlong Solis Mini string inverter. We could get from 500 to 1000W form the PowerSpout. I know that this takes the system over the 1:1 rule. But water turbine would be used when there is no PV power (bad weather or night).

I don't have the exact question, just need the sanity check for this long term plan.

Thank you!

mterman asked
shaneyake commented ·

0 Answers

Connection error while updating firmware Multiplus compact???

Who can help, because similar topics seemed to be unanswered.

I‘ve tried to upgrade the 2606413 firmware of my Multiplus 12/70/1600 to firmware 2606482 for ESS and to connect the Bluetooth dongle.

Followed the steps precisely but at connect part 2 I get “Error connecting. Please try again!”

The Multiplus was disconnected from the color control. Then the dipswitch settings were re-programmed (DS1 was on, now off and DS2 was off and now on) followed by switching DS8 from of to on and off again to store.
Power was removed as mentioned in step 1.
MK3 to USB was connected via COM4 and working.

I found that when I switched the Multiplus of (step 1) and on again while connected to the MK3 the unit doesn’t turn on and there is no connection at all.
LED’s remain off as well.

When I switch the multiplus off with the MK3 cable disconnected and then switch it on, it starts in inverting mode with the green light on.
However, then I get the connection error.

I tried both ports on the Multiplus; doesn’t matter.

Hope anyone can help!


lsi asked
lsi answered ·

7 Answers

Big difference between from and to battery

If I look to my statistics in VRM on 30 days there is a big difference between how many power that comes from or go’s to the battery. In my opinion this difference can only be as large as my battery size.

setup: multiplus II go 48/5000 , 6 x Pylontech 2000 battery and a mppt 450/100





if you look at the from solar and direct use there are the same

frederikbove asked
Alexandra edited ·

3 Answers

Buck-Boost 100A - No OUT LED (Green IN LED)

I have installed a 100A Victron buckboost essentially as per the below diagram from the manual. The only difference in my install is that there is a transfer switch between the buckboost and the LiFePo4 service batteries. I am not using the green/purple pin wires. My service batteries have built-in BMS.

I am using engine vibration detection only to turn on the converter. When I turn on the engine/alternator I get an IN LED = GREEN, which is the desired status. However, I get no OUT LED. No OUT LED is not described in the manual.

My service battery monitor shows the battery is at 99.5% charge so I would expect the OUT LED = GREEN or PURPLE. If there was no connection to the service battery (because my transfer switch was installed incorrectly) then I would expect OUT LED = RED (no connection to battery as per manual).

TSConfig is showing correct input voltage (1) and output voltage (3) but no output current (4) except occasionally .1 or .2A (but mostly zero). I will screenshot TSConfig tomorrow when I am able to.


bigdumbmik asked
bigdumbmik edited ·

0 Answers

Multiplus II 5000va Split Phase 220v On-Grid Setup

I am seeking feedback on whether a 220v single phase Multiplus II 5000va is able to synchronize and work "on grid" with a 220v-240v split phase grid (L1+L2+G. NO NEUTRAL). There are no 110v loads or panelboards, all are 220v loads connected Line-Line.

The intention is to use the Multiplus synchronized with the grid together with an energy meter/export control to allow backflow of power to other loads and the utility.

I have successfully used a multiplus1 5000va with 220v split-phase generator through the input however this was off-grid, not synchronized, using the genset input to power the loads and charge the battery.

A picture of the grid service is below.

Appreciate any comments or feedback!


raftoda asked
shaneyake commented ·

1 Answer

MPPT 100/30 Cable size

Hi ,

Just wondering about cable size from the MPPT Controller to the Battery. The data sheet is saying :

Power terminals 16 mm² / AWG6

Can I use 16 mm² cable - will this really fit into the MPPT ?

Waiting on the order so haven't seen it yet !

Many Thanks !

danny007 asked
markus answered ·

1 Answer

How do I add tank monitors to my Victron Color Controller?

I hav the Victron Color controller monitoring my Multiplus, BMV and Blue Solar controller in my RV. I would like to add tank monitoring through the color controller. Do I need to purchase a whole new tank monitor system, or is there a way to use the existing resistant based monitor wires? Is there any documentation or resources for adding tank monitors to the Victron Color Controller?

Steve Mullins asked
brinx38 answered ·

4 Answers

Solar yield reads 0

I've got an EasySolar 1600/24. I've wired it up to my battery bank, and I've got 500W of panels (300W in series and 200W in series so I'm below 100V).

The VRM dashboard says my PV Yield is 0, but it's a sunny day and my battery voltage is declining only very slowly (and the system is loaded). Any ideas what's going on?



tom-galletti asked
Matthias Lange - DE commented ·

3 Answers

No Analog inputs shown on cerbo gx.

Originally was showing temperature and tank options in menus. While installing resistive tank sensors the cerbo GX rebooted. now all analog options are blank. The tank over view page shows no tanks connected and no options for temperature sensors available. How can I get those items to show again? It seems like the cerbo GX hardware may have faulted out.

jayoung asked

0 Answers

Charging LiFePo4


I have a 16S LiFePo4 160Ah as with following data :


In VE.Config i have left everything default for LiFePo4 but i am not sure it's correct. Right now the battery has been in Bulk for 3-4 h but should it not charge it to 56,8V per the default settings ? Does everything look fine to you ?




peternielsen asked
seb71 edited ·

5 Answers

12/24v Buck Boost Converter into Orion 24/48 Converter into MPPT to get 33V charging capability

Is this combination of components possible to utilize for the desired outcome of a 33v charge?

I've currently got the 12/24v buck boost converter in use but it can only charge my batteries to 30v. (my batteries are 28-33v operational)

I want to take that 30v and boost it to 33v and it seems the only way would be to use the Orion converter then send that into an MPPT.

Is this possible?



thirdeyesamuel asked
thirdeyesamuel answered ·

1 Answer

Multiplus 12/3000 low voltage shutdown vs low SOC shutdown - Both triggers active ?

Hi - have a question about the multiplus shutdown configuration and precedence.

If you have DC voltage settings for low voltage shutdown, AND low SOC shutdown, is it safe to assume both settings are active and shutdown may occur based on which ever trigger occurs first ?

SOC will be provided via smart-shunt/BMV to ve.bus as configured on VENUS OS device. Thus it's possible to have the smart-shunt/bmv incorrectly report SOC if the setting "Battery starts synchronized" is turned on; So the battery voltage could be way lower on a somewhat depleted battery yet the bmv SOC says 100%, if you have reset power to the BMV. Thus I'd expect the low voltage triggers to take effect.

Of course we usually try and disable this "start syncronized" setting to prevent misunderstanding true state of charge until the battery has gone through a true charge cycle. Which also begs the question:

If you restart the BMV and it's SOC reading is not available until a full charge has completed, will the inverter just pay attention to the voltages at that point ? I'm assuming a SOC is not presented to the ve.bus/inverter until the full charge has completed.

thanks in advance.

chad-smith asked
abegweit commented ·

0 Answers

Color Control GX with 3rd party LFP Batteries

how can i make the communication between the Color Control GX an the BMS of a third party LFP battery?

tobias-endress asked
Matthias Lange - DE commented ·

0 Answers

How do you get 70 AMPs 14,4v of instant charging from MultiPlus 1600?

Installed a MultiPlus 1600 12/70 onto a sailing vessel, but it does not charge the 630AH 12v Exide Gel Battery Bank with more than max 13,3 volt. So, when shore power or the vessels AC generator is putting in 230v AC to the multiplus and the unit/charger makes a lot of annoying noise, the battery bank actually continues to discharge. The unit is brand new with all settings set as default.

The point of installing a new Victron Multiplus was to utilize the 70 AMPs charger to charge the battery bank faster especially from the boats 230v AC generator, when the other suppliers of current from the ship (wind turbine, hydro generator and solar) wouldn't be able to cope with consumption. So, the charger-unit has to go into full charge voltage of 14,4v (no more) with 70 AMPs charging current instantly when the MultiPlus is powered from an AC source. even when the battery bank is already charged 90%. The battery bank always must be fully charged before passages or before nights at anker etc. as we don 't want to run the generator when sailing or when sleeping.

Is the Multiplus 1600/12/70 capable of delivering what ordinary stand alone charges can? Or will I have to return the unit to the seller as a faulty product (a battery charger has to be able to charge instantly also on a nearly fully charged battery bank) and reinstall my old Clayton 1213 Sinus Inverter together with a new 70 AMPs ordinary battery Charger?

Best Moony

moony asked
Matthias Lange - DE answered ·

1 Answer

MPPT Solarcharger 250/100 is stuck in absortion

3 days ago it suddenly switched from Bulk to absortion (the orange light slowly blinks) and it wont go back to bulk and wont charge the batteries nor produce what the house consuming in energy.

There's voltage coming from the FV to the charger but 0 A, so it wont produce anything.... the wiring seems fine and everything else looks also fine, I dont know what's wrong and would apreciate any help.

>Spanish inquire<

"Buenas tardes,

hace una hora que mi sistema se quedo pillado en absorción y no carga absolutamente nada desde FV.... adjunto foto y pantallazo.

Revisé todos los cables, tornillos, diferenciales, reinicié el inversor.... no se que mas hacer.

Quisera añadir, que cuando el sol se pone al gestor de carga no lo llega voltaje des de las placas (2-3 voltios solamente) y a la que el sol sale recibe 220-230 voltios 0A y nada de carga, intermitentemente marca como si le llegaran 5watts pero solamente muestra ésa carga de 5 watts durante unos segundos.

Ya contacté con el instalador ayer pero no obtuve respuesta por su parte.... si alguien sabiera a que puede ser debido o que comprobaciones puedo realizar le estaré eternamente agradecido."



n0ga86 asked
n0ga86 answered ·

8 Answers

VenusGX mqtt unstable after 2.72 firmware upgrade.

After upgrading the firmware of my Venus GX to version 2.72 I am having issues with it not continuously publishing to the mqtt broker.
When I connect a client to the broker in the GX I receive the subscribed messages for about a minute after which an empty message is received and no more messages are received until about 1 minute or 2 later. This just keeps on repeating.
I suspect there is a timeout issue or it somehow does not get the keep-alive messages.

I was unable to find a change-log for 2.70 to 2.72.
I would also rather not roll back but I also cant seem to find a way to even roll back the firmware.

After creating a profesional account I am able to access the changelog. Though that did not really explain why mqtt is misbehaving in 2.72.
It did however point out how to roll back so I rolled back to 2.66 which resolved the mqtt issues.

However that may cause me to be unable to configure my EM24 ethernet as that was not yet added in 2.66.

rwarps asked
rwarps commented ·

0 Answers

Low voltage reading on BMV712

My 3 year old BMV 712 Smart battery monitor is reading 0.3 volts too low. It reads too low at the main and auxiliary batteries by the same amount. I have checked the fuses. I have checked the connections. I have measured the voltage at the B1 and B2 terminals and the ground on the shunt. I have inspected the connections on the back of the monitor and on the shunt. My voltage is verified by the readings on my inverter, solar controller and hand held meter. All 3 are the same except the 712 monitor is 0.3v too low. What do I do next. If I had a spare cat5 cable I could try it.

mcpreys asked

0 Answers

Consumption Miscalculation of Data in VRM

We experience miscalculated data in the historical Consumption data presented in the VRM dashboard

The system includes:

Cerbo GX (V2.62)

3 Quatro Combi-inverters in 3-Phase (V478)

Smart Shunt

The system is charged by Solar with Smart MPPT's and by an external DC Power supply of ~13KW periodically.

Obviously, when the DC input is on, the consumption calculation is reduced down to zero. In reality, the AC-Loads are almost constantly >5000W.


We assume that it's because the consumption data is read from the SmartShunt & MPPT's but the "Has DC" info is not calculated (as explained in the VRM Portal FAQ).

Question is,

1. is there a way to use the consumption data based on the Combi-Inverter AC-Loads data instead of the Shunt data?

2. Alternatively, is there a way to remove the Historical Data from the VRM dashboard as it is incorrect and confusing the users?

Thank you

power-consultant asked

0 Answers

250/100 is limiting my solar output to 1000w

Hi Guys

I have a Victron 5Kw with 16x 370w panels and a Dyness lithium battery had it installed this last week.

The issue i am having is the Mppt is not allowing more than 1000w from my array to come through and my load is great enough for it to pull more. I have removed and shading and hosed down the panels of dust etc but no luck.

The strings seem to be fine around 166v +- on both of them

Can anyone help as to why this could happen?

sohail1 asked
sohail1 answered ·

3 Answers