PeteT

Thank you for all the input.  Revov sent their tech out to me and he changed the RS485 cable also set the one to master and other to slave.  Also connected his PC to the one batt to adjust the charging Amp from 40 to 101AH  he reckons it will stabalize in about 2 weeks.  We wait and see now to see if rate of charge and discharge is more equal between the two now.  One batt was in state of DSG (discharge) and other was IDLE.  
Thank you again for all the input.
Now I must master the system settings to get most out of the batteries and the PV. 
Google is my friend but I think I ill stay right here on POWER FORUM - You guys rock!😬

Thank you for all the input.  Revov sent their tech out to me and he changed the RS485 cable also set the one to master and other to slave.  Also connected his PC to the one batt to adjust the charging Amp from 40 to 101AH  he reckons it will stabalize in about 2 weeks.  We wait and see now to see if rate of charge and discharge is more equal between the two now.  One batt was in state of DSG (discharge) and other was IDLE.  
Thank you again for all the input.
Now I must master the system settings to get most out of the batteries and the PV. 
Google is my friend but I think I ill stay right here on POWER FORUM - You guys rock!😬

Wow 87 Dream, this forum is the real deal.  Thank you for the speedy reply, I will take some pics and post them here.  
One of my concerns is that I don't see a 10KW system as the inverter either reads 5KW on the one battery only, due to the CAN cable connected, either to the one or if I change it over, to the other.  They discharge and charge at different rates.
Yes I see they meant to be 1 master and one slave but for some reason the installer put both on master.
Will take some pics.