I have a pair of IPS 4000WM inverters that previously paralleled just fine, Now that I've moved them due to the upgrade to lithium, they don't want to play ball.
Previously I was not using the Solar Charge controllers. Both worked fine initially now they cycle the fans and read about 5 volts low on the PV (68 VDC instead of 73VDC).
I've ordered a stand alone Solar Charge Controller for now. The lack of Parallel capability is more of a chore for me.
As I work through the problem I will post results and if anyone has some insight that will make it easier I would appreciate the feedback.
Modelmakeroz.
Mackay Qld AUs