Reply by AshDawn:
@FETGeek — classic winter head-scratcher this one! What you're likely seeing is the battery voltage sitting so close to your panel voltage on cold mornings that the MPPT simply...
I've been running a Renogy DCC50S (50A DC-DC with built-in MPPT) in my Transit conversion for about three months now and overall it's been solid, but I've noticed something odd.
Really good point from @LDVCamper there. Building on that — it's worth setting realistic expectations around what you're actually asking your system to do.
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