I recently installed a Orion Smart 12/24-10 on my travel trailer for DC-DC charging when there isn’t sun and I’m driving. My question is, since the Orion doesn’t have synchronized charging (and I guess the new Orion XS doesn’t either!), what settings should I use so that the Orion doesn’t overcharge when the MPPTs are also charging. I currently set absorption and float at .05 volts below what I have the MPPTs set at. Since they can’t talk to each other, is this sufficient?
These settings would be verified by experience for each particular installation.
However, this is the correct approach, and will give the MPPT’s charging priority.
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