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This may sound like a silly question but what if I want to switch (on/off) a remotely installed water heater via wifi instead of wiring the Cerbo GX analogue output normally used for relays? Is there a built-in function or do I have to convert the analog signal to digital?🤔 I'm sure I'm not the...

I had one L1 Overload warning today but no battery warnings, the load was nothing serious, only 1203W on L1. BTW I assume that it's impossible to determine which of the two inverters is generating the warning since they run in parallel or is it? I'm not sure I know what you mean by Exporting the...

I have now reconnected the Seplos Can Bus of the 16Kw Battery to Venus, it was disconnected last month after erroneous behaviours between the two battery banks. So far everything seems to run smoothly however I'm not happy about not being able to use data from the smaller 5Kw Odipie battery...

One month later - I've been running the two battery packs without any communication with each other or from the Seplos to Venus and I've never had any issues since. However, as stated in my other post here https://diysolarforum.com/threads/multiplus-ii-warnings-alarms.83127/page-2#post-1078933 I...

Thanks, I did not have them enabled, probably after the recent parallel reset. I can see them now but they are new to me so I have to understand them better.

No ESS, and no connection to the grid at all. In all fairness, I only have a couple of low battery warnings recently as can be seen from the images but many DC ripples.

Yes, even mine clears after 20 seconds or so but it happens often, sometimes even twice the same day. Here are the voltage and consumption values at the time of the issue. I assume that the Lynx shunt is the nearest thing to the Inverter voltage as there is no widget for the Multiplus.

I assumed that the ripple was due to incomplete suppression of the alternating waveform after rectification as stated in the technical description so the only way for the BMS to create one would be in the form of PWM . . ? Let me check the voltage at the inverter at the time, that is if the...

I also have two of these still in the box but I see no difference, I need to dismantle one and check how good the sprung-loaded connection is

These isolators? Victron have similar ones in its range?

What I need to understand first of all is how the Victron Multiplus calculates the overload. Are there any settings contributing to the issue that could I have missed? I could understand this happening on one inverter only but since I added the second one running in parallel I now have 10.000...

The low battery alarm is more often not in conjunction with the L1 Overload, only sometimes and only under high load demand.

Thanks, very interesting discussions on your link however in my case, the problems are multiple but not in combination, I sometimes get a DC ripple, other times a L1 overload and other times low battery warnings even with batteries over 85%. My 16kWh battery is as perfect as it could be, I...

I had the same problem when the 16kw battery was not there. Perhaps I should try isolating the 5kw from the system but it makes no scientific sense at all, if one battery was going on its knees for whatever reason, the other one would cover it, especially on such a low demand.

Any Ideas?

I am getting a surprising number of L1 overload warnings from my two Victron Multiplus 5000 in parallel system with 20k battery storage. here is an example from yesterday's log: 76 VE.Bus System [276] Overload L1: Warning 2024-04-28 15:01:00 20s The usage at the time was nowhere near any...

I've been running them all day starting with similar voltages and just looked at their status now: 100A Odipie registering 73% SOC with a cell max delta voltage of 3 mA 304A Seplos BMS based at 80% SOC and you can see the Cell voltages yourself here: I'm curious to see what will happen...

Thanks, yes I've heard that before and I shall try again today since the first time also mine followed along for some time but all of a sudden one day the smaller one started discharging much much faster.

Thanks for sharing your experience. I am testing my 304A in parallel with a 100A tomorrow starting with similar voltages but with totally different BMSs the 304A being based on the Seplos 200E and the Odipie 100A running a Daren BMS. Do you connect them by rs485 regardless of what BMS they run...

Bus bars torqued correctly to 4-5nm All BMS sensor's ring terminals are well seated and firmly tightened (unless there is a bad crimp - see end note) Why is conductive paste bad? The issue has repeated in reverse this time causing an under-voltage protection alarm as opposed to the over-voltage...

Did you attach the Monitoring Software to this page? I do not seem to find it. I have an Odipie 100A 48v which does not connect to Victron Cerbo and I do not seem to find a Battery Monitor software that works for me to view/set its parameters. I built and now use a second 304A battery and...

No offence taken 🙏 it's just a touchy subject for me as I've olny had horrifying experience when I was forced or I allowed others to take over even just a small part of my projects. Absolutely, the LED's ar directly connected to the Battery terminals and adequately fused with their proper loom...

I had a feeling someone was going to say that 😍 and that is correct, but you you read I said "no one ever touches my projects" obviously I have to purchase the raw materials but all the machinery and manufacturing whether that is lathe, milling, tigging, coachwork, competition engines and no...

Thanks for your input;) BTW, nobody ever build anything for me :) . . . no electrical, no mechanical, no plumbing, no buildings, no musical equipment, no cinematographic equipment and that is because I only trust myself to do things that I have to use and if I don't know how, well then I do...

Solved (hopefully) I left the lids open for a couple of hours so that the LED would stay on an discharge the cells not too aggressively and connected it in parallel with a smaller 100A and one of the two inverters (I was going to set them up in parallel tomorrow) hoping that as soon as the...

its a neat setup internally so I cannot immagine any wiring issues

It's been fine for weeks now, in isolation or in parallel with a smaller one. Today it was working alone but I wanted to charge the other battery and which showed a similar voltage but when I connected them together the problem started. Never did it happen before

So it seemed but minutes later all voltages were back to normal reading and all cells resistance is 0.22/0.24mΩ

Yep, it shows a definite over voltage that accord to cell 16, as high as 4.7v but how would this happened I do not understand. Yet minutes later voltages are showing correctly (I double checked each cell V and for resistance too) and only SOC low warning now. No apparent problems with the...

Here is the answer: Look for off grid garage How to setup the Seplos BMS 10E. Works amazingly with the right settings.

A novel problem for me, today my seplos 200 based 48v 304A battery after reaching 100% SOC entered the single cell over voltage protection followed soon after by the single cell under voltage protection and the remaining capacity protection as from my image The display jumped fro 100% SOC to...

by com port do you mean RS485 or Can Bus Please?