I am purchasing a new RV and I have some questions about mixing together different panels and controllers. On my present camper I have a 140 watt Kyocera. On the new one it has a 20 watt and cheap lo...
I have used multiple controllers on a bank. They worked fine as long as both were set to the same voltages.
As far as mixing panels on a MPPT controller, that 20w panel isn't enough power to worry about even messing with in my opinion. You really need to match up the panels on a MPPT controller because it has to find the sweet spot in the array voltage and mismatched panels make it hard for it to do it.
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