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I am on the final legs of my installation and started to read on the configuration for my Victron Energy SmartSolar MPPT, which will be connected to my (3) EG4 48V batteries. I don't have access to the Victron as I type this, but I am curious: are the recommendation below per cell? So would I...

Yes, MC4s all around. Got it! (y) (y) Which male & female? The male from the very first panel & the female of the last panel? Not clear I fully follow. But I thought, after connecting all panels in series, that if I were to measure Voltage across the the array, that I would get a reading...

Thank you. We are almost there!

How would you do connect your solar array today? Any specific order of operation? Or just keep that DC switch off and connect panels as you bring them to the roof and mount them? Sounds amazing! Like they say, first time is a bit harder but then down the road things get easier and faster. Is...

Got it: keep the DC switch open during the install. Any other recommended sequence of operation when mounting & wiring the panels on the roof? Does it matter if I connect main leads to the panel before or after the panels are wired in series? Or none of this matters?

We have the racking system installed mounted on the roof and electrical devices wired all the way to the battery: Roof junction Box > DC Disconnect > Combiner Box > Surge Protection > DC Breaker > MPPT > Battery We are ready to move the panels to the roof and start wiring them. I realized that...

Just language. I did a hard reset and had to reconfigure my entire system, field by field.

Nope, restarting the gateway didn't change anything other than the order of the devices in the screen. Still no BMS Setup screen showing up. @Markus_EG4 were you able to clarify internally whether the SW 4048 should also have the same BMS Settings options when connected to a EG4 LP battery...

Correct, the EG4 BMS is connected and shows under Device List, but nothing beyond. Well, you were right before about EG4 firmware fixing the balancing issues, so yes, I'll take the leap and try resetting the InsightHome device. If you re-read this entire thread you'll see that I've been trying...

It doesn't matter if it is zero amps or 50W AC, which is our Starlink baseload. Regardless of the load, as soon as I set battery type to Li-Ion the inverter goes out on "Battery Discharge Over Current" Fault. I then am forced to change it back to "Custom" battery type and reset the fault, so...

@Markus_EG4 I do have "Basic" and "Advanced" tabs under my InsightHome and all of the screenshots that I shared are from the Advanced tab. You guys sells both SW & XW inverters, could you not double check on your end whether the SW 4048 should also have the same BMS Settings options when...

@Markus_EG4

As I tried to explain before. I do not have access to this screen "Battery Management Systems Settings" and that seems to be the issue.

Currently I do not see any faults UNLESS I try to change battery type from Custom to Li-Ion. If I do it, then I get a "Battery Discharge Over Current" Fault, turning off the inverter.

@Markus_EG4 I was able to follow the "Setup Up Guide for EG4 with InsightHome" up to page #9, shown below: Two issues trying to follow the guidelines: 1. when I change battery type to "Li-Ion", no "Charge Cycle" appears. So I am not able to continue the guideline instructions. 2. If I...

@Markus_EG4 I need some help. I've updated each EG4 to V3.32 and InsightHome to 1.8 as requested, however I still do not see the BMS Setup screen you referenced to in the photo below: Under InsightHome Setup screen I do not see the "BMS Setup" option. Please see below: Here is my EG4 BMS...

I don't fully understand what you mean: I tried doing exactly the above but they stop accepting charge after one of the cells go into OV alarm. So it is not just a matter of staying connected to the charger. I cannot force them to take more charge than the BMS accepts. In any case, I am in the...

Not a terrible idea... the wiring would not look pretty but it would work...

Very clear. Thank you. #fml Would be risky to try? Could I try running the generator when batteries are removed to see if power goes-thru? I don't see it being risky but maybe it is.

Re-reading my post I realized my request for answer would benefit from me adding additional information: I intend to take the batteries back to shore ground for balancing purposes and currently the gas generator is only connected directly to the inverter - no transfer switch of any kind... If...

I am trying to understand whether I could still use generator power if I remove the 48V batteries from the site and the inverter is off. The generator power is wired thru the Inverter. Would the inverter still "wake-up" and pass-thru the generator power, even if no batteries are connected to the...

Okay, I'll update V3.32 and also update InsightHome and see how this affects my system. Thank you.

Markus, The firmware you posted seems to be 3.32 but without any changelog info? What is the difference between the 3.30 and 3.32? Shouldn't it have a changelog?

Markus, I am trying to correctly balance these batteries and for me to do that I need understand the following: 1. Desired mV Cell Diff from manufacturer: what is the target mV Diff for these packs? 2. Charger settings: what voltage/current you want to see charging these batteries? I am not...

Okay, I'll update my InsightHome. But what settings do you want me to add/change that will help me with the EG4s? What exactly will I be looking for once I update Insight Home? Please clarify which settings you recommend I change?

Insight Home.

Here it goes..

Markus, I am running the 4048SW inverter NOT the XW, so these configuration settings do not appear on my end. The EG4 BMS talks to the SW but it does not give these options, not currently under my firmware versions. Please verify/confirm these settings would only be available if I were...

Here is goes @Markus_EG4 : On the top end the batteries are not balanced with almost 300mV cell discrepancy, reducing drastically my overall battery capacity: On the lower end, the batteries go from 40% SOC to 0% SOC + undervoltage alarm, shutting down my system. This is happening with a...

@Markus_EG4 I am hitting a wall with Signature Solar troubleshooting my (3) EG4 packs: they are telling me that a +230mV cell difference is acceptable or even normal in these batteries but this “normal” discrepancy is causing issues on both ends of the battery capacity: on the top end my...

Absolutely. Do you want my email or phone number, via PM?

I am not sure I completely follow you, please be more clear. The batteries are connected to the Schneider, no issues with that. So what exactly are you asking me?

Mark, I appreciate you jumping in and trying to help. I believe so. I actually believe I received the files from you a while ago and the Schneider correctly connects to the (3) EG4 packs and reads 300Ah under the Insight Home. See screenshots from the QT-BMS-Test program regarding the firmware...

@SignatureSolarTech . I've reached out for support and now they are telling me ~220mV is within specs for these EG4 batteries. This imbalance is causing issues on both ends: lower end SOC seems to be extremely off and battery goes from 40% SOC to 0% SOC with minimal load causing a range of...

That seems well balanced to me. But how do I address and get the vendor to support this?