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My PV bank is 16 Kyocera KC158 G with a Vmp rating at 23.2 volts. That is hooked to a Xantrex SW 4024 the system is grid tied and I have 5 Rolls 4CS 17PS batteries that make up a 20 volt battery bank. I have the inverter set to maintain the batteries at 22.1 volts but I don't have a separate charge controller. I am just using the inverter.
Should I have a separate charge controller and do any of them work properly at 20 volts?
Thanks,
Dennis
Charge controller voltages
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