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Naio's avatar
Naio
Explorer II
Mar 30, 2015

How much gas does your genny use? And a charging question

After generous advice and hand-holding from folks here, I experimented with running my van engine to charge house batteries when dry camping, as I do not yet have a genny or solar. I used an MSW inve...
MrWizard's avatar
MrWizard
Moderator
Mar 30, 2015
A 6kw Onan will use 1/4 idling and about 1/2 gallon charging my batteries, so your not that bad off
But
My 3kw Champion inverter genset, will give me about 5.5 hrs charging and other small loads on one gallon

The small $99 two stroke 900w generator will quickly pay for itself, in fuel savings, if your spending a lot of time camping

BTW your alternator might be 105 amps, but it is only 14v not 105v that would burn up every thing in the van

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