I found out today that there has been a firmware update for the eg4 batteries. I have been asking Signature Solar for 3 months for an update and they did not notify me, I found out about update on this forum just a few minutes ago. Signature Solar has the worst customer service of any company I have ever dealt with. The problems have been - 1. The 3 eg4 200 ah batteries would not start my inverter. 2. No help from SS on accessing the bms test program, had to figure it out on my own. 3. The batteries after having 60 cycles became very unequal in voltage. 4. After adjusting charge voltage per ss, the batteries show over charge alarm at 28.9 volts and per SS that alarm should not come on until 30 volts. I am a very unhappy customer and recommend anyone that is going to purchase lifep04 batteries do a lot of research before purchasing. Enjoy life George