Thank you for the precision. That is what I thought. I understand that would be ideal, yes. Hence vive open standards, because once again we can see in this nascent solar industry, when corporations left to their own devices, they develop their own systems they want to lock you in then and keep them closed. Over and over again. So sick of it!In ideal circumstances the BMS can tell the charge controllers what rate it wants to get charged at. But you are right in that this isn't a hard requirement - you can treat then as a "dumb" battery like lead acid and they will still work ok.