Need settings advice for Sol Ark 12 and why is my BMS not working?

[SeaWolfVic]

I just spent the last 6 hours rewiring my "professionally" installed system. My primary issue is with my inverter and my batteries. I have a Sol Ark 12. I think its the outdoor version that has the dongle on the left side. I also have four STORZ LFP48100 batteries. I've had this system for nearly 5 years and its been a pain in the ass for almost as long. I'm actually on the second inverter. Anyway, I rewired the batteries today so they are in a true parallel. I noticed the other day that they had been installed in some strange parallel hybrid setup where 2 were connected and then that feed went to a bus bar. And 2 more were connected that way and they went to the bus bar and then that went into the inverter. Maybe it worked fine, but it was nothing I had ever seen when researching battery connections. Now its more "normal". Still seems to work so I didn't burn anything down. Anyway, the thing that is vexing me is the BMS. I have done all kinds of research on the batteries and the inverter and everything I have found and tried has failed. First lets assume that I have the right Ethernet cables. I have the batteries all connected to each other and I have all the dip switches in what I have been told by the manufacturer is the correct setting for each of the four batteries. When I turn on the BMS setting on the inverter the display shows a triangle with an exclamation point in it and it defaults to voltage and not SOC which I prefer.

So here is my plea. Does anyone remotely have a set up like mine? What are your settings like? I think mine are right, but they were set by the installer which I have lost my faith in. So I need other advice. Last, why can't I get the Sol Ark and the STORZ batteries to talk to each other? What have I been doing wrong for 5 years? Thanks for any advice on this. I'll be happy to provide additional information if needed. I'm just tired of this equipment not functioning to its potential.

 

[SunDave]

Hi. Welcome to the forum. Here is a link to the battery connection guides. Check your battery model number carefully to be sure it matches, but it looks like they may be supported. Battery communications can be tricky. There is a section specifically for your brand.

https://www.sol-ark.com/document/sol-ark-inverter-battery-communications-installation-guide/

Regarding the battery setup, going in pairs to the busbar can be a legit method. I have 6 Pytes 48100r batteries installed with communication that I wired that way (per manufacturer battery cabinet instructions) and it works well.

 

[SeaWolfVic]

Thank you for the reply. I will give the linked guide a shot.

 

[SeaWolfVic]

I can’t believe it but after five years my inverter is finally talking to my batteries. I can finally see the battery type recognized on the SolArk and all four batteries are accounted for. I hope this means I don’t have to keep fiddling with it anymore right? Can things still go sideways with this system?