I have 6x5KWH Ruixu and 6x5KWH EG4 independently monitored on a pair of 18KPV/12's. 'A' is the EG4, 'B' is RUiXU.
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I have not really noticed anything bizarre, though I did recently have them trip 150A breakers (below spec should have been 200A, now replaced) when I had an extremely high load running from battery. The result was rather poor behavior on the inverter side trying to push 18+KW to the load mostly from battery, mimimal PV (maybe 1-2kw combined), and only one of the inverters actually having battery. It kind of went nuts instead of shutting down. The RUiXU's seem to discharge and charge a bit faster than the EG4's (green SOC curves). Inverter seems to average the numbers for some functions.
I assume you have the RUIXU's set to Luxpower, and you are using a straight thru data cable?:
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i think it's using CAN, but I don't know for sure. I just have it set for SOC. with my thresholds and it kinda just does what it's supposed to. The charge/discharge rates are generally as expected. I poll both inverters every 30 seconds, and while the charge/discharge rates are never the same they are always within the range of my expectations. Currently the EG4's (on 160 the primary) are working marginally harder than the RUiXU's (on 231 the secondary). Numbers are generally similarly close. charging or discharging,
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I generally try to make sure I make the most minimal changes to my settings. Also you may note the loss of ~150W. Pretty sure that's the inverter overhead + conversion loss (about 75W each at the moment) the % drops slightly as the output goes up, ie the delta rises somewhat less than the power. I think the units consume 40 or 50-odd watts, + around 7% conversion loss, YMMV. These numbers come directly from the inverters.
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