Ultimately the best method will depend on the size of your rv the amount of space you have to work with and the size of your solar panel system.
Camper mountable solar panel.
This solar panel would be ideal for full time usage with items such as a 12v fridge t v.
The renogy solar panels came with short wires with mc4 connectors attached from the factory.
Controller monitors output and prevents overcharging.
There are various ways disguise this with roof racks and flush mounted flexible panels.
Lastly i connected my four renogy 100 watt panels in parallel running 10 awg wires from the panels to a rooftop mounted combiner box.
The solar panel measure 1476mm x 670mm so is small enough to be mounted onto the roof of the van more than one could fit if this is necessary for.
Another highly reliable solar panel for rv battery charging that you can use is the windynation 100 watt solar panel.
Roof mounted solar kit.
Using a flexible 100 watt solar panel and solar controller this charging system provides an extra boost to your rv batteries while you are on the road.
Using flexible solar panels on a stealth camper van.
If you re trying to build a stealth camper van any panels mounted to your roof are going to be a giveaway that someone is living in the van.
Panel flexes to fit on various surfaces.
I noticed that this excellent starter solar panel kit is offered at an affordable price while supplying you with the things needed to harness the clean and free energy provided by the sun.
The solar panel itself is a 160w solid solar panel mounted within an aluminium frame.