A lot of my friends full time in vans, small trailers and RV’s, and have asked for an inexpensive starter Solar kit. I’ve put together a 50w kit, that is expandable in 50w “chunks”. Just connect each kit to the fuse block, and you have boosted your solar input. Comes with documentation for simple installation.
1) 50w Polycrystal Solar Panel
1) 4.5 amp charge controller
1) DIY Solar Guide Instructional eBook
$199 (free delivery lower 48 USA)