Thor Forums

[HaRVey]

Originally Posted by USN Retiree

Excuse my ignorance, what is MPPT controller? How does that differ from a PWM (no idea about that either) that comes stock?

Our 2018 Palazzo came with the GoPower PWM30 (30 amp controller) and a single Grape Solar 100 watt polycrystalline panel (exact same dimensions, current and voltage specs as the polycrystalline sold by GoPower), but while I could have added more to the factory system, I did not like the wire size or routing of the factory wiring and wanted the significantly more efficient monocrystaline panels and MPPT controller for my additions (~95% efficiency verses ~70%).
This way I use the factory system for the chassis batteries since they don't get maintained otherwise (except when main engine is running) and use the new system for the house batteries.