Solar Power Solar Panels and Kits Solar Charging and Panel Kits Designed for use in off-grid applications, Samlex Solar Kits contain everything you need to install your solar system in a few simple steps. Portable Charging Kits: Now you can take solar with you! The Samlex Portable Solar Charging Kits have all you need for 90W or 135W of power, wherever you need it. Battery Maintainers: Maintain the charge in any 12V battery using energy from the sun. Panel connects through 12V power plug or directly to battery with ring terminals. Perfect for battery maintenance when your car, boat, truck, ATV or RV is in storage.