Thor Forums

[Chance]

Originally Posted by TurnerFam

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... though, admittedly, you would probable still want an 'optional' smaller, maybe even 'portable', generator just to charge the batteries when parked and weather conditions aren't optimal for solar.

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Regarding this need, you may find it interesting that Hymer/RoadTrek signed an agreement for use of small fuel cells that run on propane (if I recall correctly). The size is not large enough to power the air conditioner on a steady-state basis, but in combination with RT lithium batteries, it should power A/C overnight without van engine having to run as a generator.

Because fuel cells are so expensive, I personally would prefer a larger battery bank, and larger alternator as well (if it made sense). Since motorhomes have huge engines anyway (compared to Onan 4-kW generator), we might as well use it as the largest possible alternator so it doesn't have to run as long.