Not all solar charging systems are portable. The Zamp Solar Kit is different. This 200-watt portable solar charging kit is designed for small to large RVs and campers. It works for single and multiple battery banks. With 6 or 7 hours of optimal light a day, you can expect 65 to 80 Amps of charging power. The Zamp is not cheap but looks like a decent solar solution for RVs.