If you have the Indoor Wall Mount batteries read the post from "Krzysiek_KTA" above. The solution he found to the brown outs that we were experiencing were solved when we got the Firmware for the batteries updated. He was able to do the update, I don't have the skill set required so my installers got the equipment (cables and a electronic box) and updated the Firmware. Works as described above. (You must shutdown and restart the system several times.)
Certainly, thank you so much! I don't think I have a Ticket #, have simply been emailing back and forth with their tech support? or maybe I'm missing something. But my Serial # 51200E0399 . I have 6 of those EG4 batteries in a rack, not wall mount, and only have the Flexboss 21, not Gridboss (just trying to make sure I had explained my system accurately). Again, THANK YOU. I am hoping you can help me figure this out.
@natwall1
I would recommend updating the firmware! Most of the time the firmware update resolves this issue, other than that the settings look good and if the firmware doesn't fix it, we can continue troubleshooting with looking at how everything is wired.
@eg4eric Thank you for suggesting this. Do you happen to have a link to instructions on how I should do that? I am assuming you are talking about the Flexboss firmware, and not the batteries also, is that correct?