question

Does your mppt charge the batteries to 100% when you switch off the Quattro? Is the charge current correct?

The battery shows 52,38V That seems to Be a full battery( lipo4? )to me. Only the mppt validatie it on 46% That looks strange to me.

I went back through all the settings and reset everything for the 10 time and disconnected the BMS can connection and restarted it as just a standard lithium battery without BMS control and got it to start charging the battery but once the battery was fully charged it dropped the solar and started powering everything from the grid. So I went into the settings on the MPPT and manually set every parameter that SOK suggested for this 48v battery and did the same thing with the SmartShunt and made sure it had the same SOC that the battery said it had. After that it still didn’t work but if I shut the grid off it increased the solar and was running the loads and charging the battery simultaneously. Turn the grid back on and all the loads went back to the grid and solar stopped. I then went ahead and set the battery back to CanBus connected to the Cerbo and went through all the settings and made sure anything that had a settings for what controls the battery SOC to the SOK battery and it seemed to start working. I only had about an hour of useful sun left so I ended up loosing the solar so can’t be sure it is really working or not. Ill post pictures of Cerbo screen to show what was happening

These photos are after I disconnected the battery BMS from the Cerbo CanBus. And changed the settings to standard Lithium battery and manually entered all of the charger settings that SOK suggested. It finally started charging the battery and charged it to 100% which it would not do. But once the battery was charged it powered all loads from grid. And disregard solar.

This is with the same settings as last pictures but I shut off the grid and it started using solar. This is right after the first pic on last post that shows the solar at 28w. All I did was shut breaker off supplying grid and the MPPT went from 28w to 2498w

I then reconnected the battery BMS to CanBus and changed the settings for that type of battery setup and went through every device and made sure they were set to use the battery as the SOC Monitor. It seemed to start working but then I lost sunlight so no solar. So I will see tomorrow if it Is working or not. A SOK battery technician and the company that I bought the Victron equipment from are both trying to figure out why this is not working. Nobody Has any idea what’s wrong !!!!!!!!!! I’ve spent over a week now trying to get this system to work and had to buy a windows computer because I use all Mac and its not supported with the VE Configuration tools program that you have to use to install the ESS assistant. At this point I’m wondering if I made a mistake going with Victron equipment.

Is the quattro enabled to return energy to the grid? May I ask ...did you configure the quattro with VEC, to enable ESS, put in the landcode, charger, etcetera.? And did you set the ESS parameters in the remote console, pages, settings, ESS?

SOK batteries usually present as Pylontech, the GX will force a low battery charge as pylons are usually 15 cells. Update to v3 RC and there is a fix that allows for 16 cell batteries, this may resolve your issue.

No grid feed in. I tried turning that on and set to feed in zero but that made no difference. I first used the Victron connect program on my Mac to set it up but then realized I didn’t have access to install the ESS. The program I used was the VE Configuration tools for VE.Bus Products. I had to buy a computer to run that program because all I have are Macs and that program wont work on Mac. Yes after installing the ESS assistant and making sure it loaded correctly I used the controller to set up the parameters. Where do you Update to v3 ?

Can you check on the GX -> battery -> parameters and just check to see what the BMS is commanding.
On the GX under system setup, make sure the BMS or the SmartShunt are set as the battery monitor and not the inverter. Also check the correct AC input is set to grid.

You can also check what the MPPT is being told to do, GX -> MPPT -> Networked Operation and see if it been told to charge.

This is where I was at this morning. Grid off and grid on. Stopped using solar again with grid on

Parameters

I updated this and have probably checked 10 times over the last week for updates. It always said it was up to date. What Did the release candidate do? Is this an update to the GX or to the Battery BMS?

Right now after updating

Release candidate is beta firmware

ESS is behaving like it should. It is showing state #1 and #2 which means you have hit the minimum active battery SOC for the system so all PV will go to battery charging until it is ~3% above the minimum active, grid will be used for loads until then.

This is documented in the ESS docs and numerous other posts here.

It may help you to brush up on the training for ESS so you can get your head around it.

You either need to do away with batterylife or lower your minimum SOC.

On face value you have insufficient PV if the battery isn't charging fully, though this could be affected by the current GX code.

Make sure in DVCC that it is configured for 16 cells and the CVL is not fixed at 52.1V.

Edit: from the pic above I can see the CVL is sufficiently high enough, so you will need a decent charge cycle to see how it goes and for batterylife to sort itself out.

Do these settings look right?

The setting for Peak Shaving was not there before going through the update with release candidate, this is what it set up on its own. I haven’t had the chance yet to find out what that’s for.

I have the inverter set to a maximum of 4600w because I only have one 48v SOK battery running a Quattro 48v/10,000w 120v inverter And the Max Continuous Discharge Current on that battery is 100 amps. If I’m figuring correctly that would be 4,800 watts. So I set it to 200w less. Does that sound right?

Where it’s at right now. As battery percentage went up the grid eventually went to negative.

This is where it’s at right now. Outside it’s completely cloudy and looks like there is some rain moving in.

The battery charged to 100% then I started having high voltage warnings right after another. Probably every minute or 2. I read that a lot of people say it’s a balancing issue and to put controller into keep battery charged setting and let it go And the battery will eventually balance and the high voltage alarms will stop. Does this sound right?