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[nanook12]

The goal zero DC charger has a 5 or 10amp charge rate setting. When driving between camping spots on a road trip, the battery (1000wh) was always fully charged. The refer which could be run on ac or dc, was at operating temps from the jeeps 400w inverter. Because the refer/freezer was already cold, it drew very few amps when plugged into the solar gen battery overnight. You could run the refer for 2.5 days without solar power input.

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[Proximo]

12.8 is a fully charged battery voltage - you'll see that on long drives when the batteries are full and/or hot.
Easy enough to check the inverter - plug in something else that's no more than 400 watts and see how it works - and measure the voltage at the inverter outlet.

Sooo happy to see 12.8v is normal. I used the "search" in the forum to find this. Almost asked @Gvsukids to search for me
Anyway, my concern was 12.8v while driving and 14v while coasting to a stop. Just trying to pay attention while finding my gremlin, if the star can bus wasn't my gremlin.