Hi all

I'm looking to buying the BMV-712 battery monitor to go in a 4wd.

The display will be mounted in the back of the car, and the shunt will be mounted under the bonnet next to the battery. My concern is the pcb getting wet under the bonnet. Is it possible to remove the pcb, relocate it to the back of the car near the display, then run a twisted pair of wires from the shunt to the pcb?

Thanks

As my Multigrid didn't come back after a power outage (Error 11), the critical loads (fridge & heating) didn't come back on-line either. :o(

To avoid this in the future I do see two options

1. connect the critical loads to the grid an forget the UPS function

or

2. monitor grid down and grid recover and check if ACout1 is back after grid recover. In case ACout1 remains off, switch critical loads from ACout1 to Grid

Before I start developing...did anybody already create such a simple watch dog ?

I have an alarm rule on my BMV, in VRM, set to trigger when the Time To Go value is less than 5 hours. The rule works well enough and allows me to trap high-load scenarios before they deplete the batteries too much.

However, when the system is charging, the time to go value is set to "infinite", but on VRM, it sees that value as 0, which is less than 5, and it erroneously triggers the alert. Even worse, it sort of reverses the logic when I'm discharging, thus clearing the alarm.

Is there a way to get around that behavior?

Also, some of the trigger points for several alarms on VRM don't even make sense. There are several examples where alarm trigger value make no sense at all. Like why necessitate a "high" value for time to go -it's a "required" value so I fudge the value at 1000.

If I've got 1000 hours to go on my batteries, I don't want an alarm on that, except perhaps one hooked up to streamers and ticker-tape :)

I have an MPPT 250/85 wired directly to 2x 12V 100AH “Deep discharge” batteries (i.e.) a 24V system. There are two 2400W inverters connected directly to the batteries.

The solar array is 6x 24V panels in series, two strings in parallel, giving me around 230V.

In order to limit the battery charge current to 0.1C, I selected battery “Max charge current” 10A. (float 27V, Absorbtion 28.8V).

How can I get the full power out of the system (via the inverters) without risking too much current into the batteries during bulk charging.? Do I need a BMV or 8x as many batteries in order to safely set the current to 85A? My purpose is not so much to charge the batteries as to make full use of the solar array by powering the inverters.

I may have already damaged the batteries as they struggle to deliver power for more than a few hours after dark, or I am suffering the problem others have mentioned about short absorbtion times.

Good evening,

Is it possible to configure the Multiplus with victronconnect and VE.Bus smart dongle as i can with VEconfigure and mk3 interface?

Hi,

I have a Quattro 48/5000 running firmware 431. Off-grid, Venus GX , 3 X Smart Solar Lead Acid Batteries.

On three occasions the unit has shutdown with an overload error - in each case I am sure that there was no overload. The incidents have been about 2 weeks apart.

The second time that this happened, BOTH the temperature AND overload LED were lit.

The most recent incident (today) just the overload LED was on. This time I spent more time trying to diagnose the issue. I tried to reset the inverter using the remote console - using the "Switch" option (ie on the remote console turning the switch to off then back on) - doing this caused the overload LED to go out while the virtual switch was off - but the fault remained when it was turned back to the on position. Physically turning the switch on the inverter to OFF, then back to ON did clear the fault and the inverter restarted.

The inverter is about 4 years old. It may be just a coincidence, but the issue has only started since I installed the Venus GX and updated the inverter firmware to 431 about a month ago.

I am really concerned about this as we are often away from home for weeks at a time, and while I do get notified of errors, if I can't restart the inverter remotely, we could be in real trouble with freezers etc.

Any ideas what might be causing this issue?

Is there anything I can do to help diagnose the fault?

Is there any other way to remotely reset the error?

I have a 100/30 mppt charge controller with blutooth dongle. Worked great for three years, but now the Bluetooth light on the dongle will not illuminate. Tried unplugging and replugging multiple times with no luck. The mppt controller is working fine. Any ideas appreciated.

Hi I have a GX GSM and trying to set it up and having a few issues.

The system is connected to a Venus GX on 2.23 and I have purchased a new EE sim with 5gb of monthly data.

I have read the online manual and when going through the processes I get to the Light blinking slowly - but it won't go to the next stage of blinking fast.

I have contacted EE and checked the sim in a phone and it works fine.

Has any one set one of these up before.

Reards

Paul

I have Quattro, BMV712 and VenusGX in my battery room and will EoP communicate with house 100 metres away.

What is the best screen device for viewing the monitoring data?

I try to avoid apple devices - is a samsung pad OK to run the VictronConnect ?

Hi.

Using a Colour Control GX and Quattro on a marine vessel.

I’ve a generator connected to the AC1 input and shore power routed to AC2.

Is there a way to Rename the tiles / icons in the Colour control GX panel ?

The main thing that’s bugging me currently is that AC1 shows as Grid - Ideally I would like AC1 to show the name Generator, and AC2 to show Shore Power.

Any suggestions would be great.

Best Regards

Does the Battery Protect when used in Lion mode with the remote terminal completely disconnect the battery? Or does it just prevent further discharging while still allowing charging.

I'd like to use it like a failsafe to prevent over-discharging and over-charging with a custom BMS. If it still allows charging current then I couldn't prevent overcharging via a remote signal to the battery protect.

@Guy Stewart (Victron Energy Staff) I recently installed 3 x Multigrid 48V 3000's in parallel on a single phase installation feeding 2 x sub-mains on the AC output to a separate house and shed each with a sub-board and MEN link. The system is coming up with Error 11 due to these N-E connections and the only solution offered by Victron so far is to replace the 3 x Multigrids with 3 x Multipluses and then install special firmware to disable the N-E checks on initial start-up. I have asked if firmware can be provided to solve the problem with the existing Multigrids with the answer being "no, the Multigrid's cannot be modified". It is not practical to install separate earths to these sub-boards due to difficulty and length, is there another known solution before removing and replacing the Multigrids with Multipluses?

Hello,

my set-up in my caravan:

2 solar panels on the roof of my caravan each 100 watts and 2 Ion Lithium batteries each 100 A/H.

I an intending to buy the Victron SmartSolar MPPT 75/15 solar charge controller.

Do you think that might be enough for my set-up or should I go further to the Victron SmartSolar MPPT 100 | 20 solar charge controller?

I have 2 different sites with the same error on both.

Both systems have 2x Multiplus 5kVa in parallel.

Battery connected is BYD B-Box 10.24kWh.

Since installation both systems have been giving Error 17.

Both systems were updated to latest firmware 2624431, and then loaded with older firmware to try and correct the error.

On both systems the comms cables have been checked and replaced with new cables.

Has anyone had similar problems and if so what was your solution?

Thanx in advance.

Regards

David

Hi there

I'm planning to charge a LiFePo3 Battery in my vehicle. So i'll have the vehicle battery and the LiFePo3 separate for lighting and auxiliary devices.

Currently i'm trying to figure out if it would be possible to use an Orion-Tr DC/DC converter or if a DC Buck boost is needed.

But somehow i hit a dead end - Electronically they seem to do the same thing. As the car holds an Euro4 engine i don't think the DC Buck boost would be needed but I'm open for inputs.

I think it's better to have a DC-DC system instead of having a Cyrix-ct because as soon as the cyrix closes the circuit the two batteries will be connected together which I'm trying to avoid because the two batteries will try to level themselves which is a bad idea.

Any insights are very much appreciated :)

Hi Gurus,

I have a 48v LiFePO4 bank that is charged with a big genny.

I am soon changing the 12v house bank to lithium as well.

Here: https://www.victronenergy.com/live/drafts:mppt_faq Q7 it is mentioned that the MPPT can be used as a DC-DC charger.

The rationale is that a buck converter has no lithium specific/programmable charging algo but the MPPT has this csapability hence when not on shore power we would have this scenario: Genny -> 48v bank -> mppt -> 12v bank.

The problem is that all grounds are common on a boat as per code. The MPPT documentation mentions this: "WARNING: DC (PV) INPUT NOT ISOLATED FROM BATTERY CIRCUIT." -> no problem, we have a common ground anyway,

Then more problematic apparently: -> "The plus and minus of the PV array should not be grounded. Ground the frame of the PV panels to reduce the impact of lightning."

In our case the PV is the 48v bank which shares the same common ground as per code for the whole boat, which essentially is the... sea.

Is the FAQ right? Can someone from staff tells us the lowdown please?

Merciiii!

Patrick

Greetings

I have putting together my setup and recently received my Multiplus Compact, what a nice unit! After inital configuration i discovered that in the charger settings aren't conducive to Tesla LiIon batteries.

Question 1: Does anyone have this battery, what settings do you set in the charger tab?

Question 2: I have AC In connected, is there a way to prioritize solar over AC In?

Thank you

My 100/30 system (2x200 w 42v in parallel) was working well, and victron connect via usb was also good. Then the phone died and I bought a new one: Samsung J2 pro running Android 7.1.1.

Attempted to connect, was told of need to update from v 2.12 to v 2.14. Attempted to do so, got a fail at 1%, repeatedly. Fooled around with various things, and at one point actually got it to go to 60% before failing. More repetitions and it did indeed say it succeeded, and showed that it was now v 2.14. Hooray! But, upon trying to connect, it again said that it needed to update, and further attempts have led to it repeatedly failing at 1 %, with failure codes #4 usually and #8 once. The manual says that this indicates that it is unable to connect with the MPPT bluetooth, but does not suggest a fix. Distance between phone and MPPT is less than a meter. I have disconnected the unit from all power several times, leaving for five or more minutes with no change noted.

In addition, a second phone (Moto C, Android 7.0) which had the app loaded and running well now fails to connect, stopping at 60% and recycling back to 20% endlessly.

The system is still working as far as I can tell, but I have no means of monitoring progress or charge state, nor changing charge parameters. I'm out cruising, using the solar system as our main source of energy and am loathe to send the unit in for service. It was purchased from Solar On Line in Australia, and I am currently cruising in Tasmania.

I could use some help!

I have a new SmartSolar 150/60 MPPT controller that appears to be functioning correctly while charging my 3 Battle Born 100Ah batteries. The output voltage while in bulk mode appears to be 13.6 volts, and I believe it should be around 14.4 volts. Also the bulk light is blinking about every 3 seconds all the time which indicates I don't have enough voltage coming in from the panels. I've measured the input voltage and it typically reads 80 to 85 volts while charging.

Is it possible that I have something set up wrong. I believe the dial on the controller is on setting #2, but I am over-riding that through the bluetooth app to the suggested lithium settings from Battle Born.