Retired kindergarten teacher, cyclist, bead maker, turtle farmer, origami and quilling artist.
Retired kindergarten teacher, cyclist, bead maker, turtle farmer, origami and quilling artist.
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I can't get all technical (and am addressing just the travel trailer part of your ?) but I travel in a VW Eurovan with a second 12 volt, marine battery and inverter. Along with a small solar panel, this powers a fridge, lights, device chargers and CPAP with no problem. Overnight, there is barely a drain on the battery storage. When I looked into CPAP batteries for camping, they need to be recharged after 8 hours anyway.