Solar gen battery
I have a 21 Axis , bought a 500w hr battery for $300 and can run tv and Roku for 16 hrs as they use abt 25W together. It has 2 ac outlets. It weighs under 10lbs. If u have a greater need for power you can get a Jackery 1000 or 1500 enough to run all your appliances except AC. for hrs on by connecting the shore power cord via a dog bone 110 adapter for entire rv. You can solar charge, using gen or cig lighter also and have endless power for boone docking. Less complicated and significantly cheaper option and can also use at home for power outages.
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