I nnever stay away more than one night, i have 2 90ah lead acids votronic regulator 200w
solar, all running a 230v fridge with a smart 600w
inverter, led lights and a tv which we never watch much, ph charging and some times a 400w plug in heater, again seldom used, but no way would this work in deep winter if staying off grid for more that 2 days max, each van owner must work out his use and sort to there requirements.
If this is way beyond you then book in somewhere LOL.
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