Battery Doctor? Solar Solutions 5 Watt Solar Panel Trickle Charger/Maintainer Kit lets your charge and maintain your RV, boat, or cabin batteries utilizing energy from the sun. All Battery Doctor amorphous panels work in all daylight circumstances. This off-grid kit has everything you'll need to harness the sun's power wherever and whenever you need it. The Battery Doctor uses Go Green (SiGe)technology that converts daylight into electricity to charge your 12 volt RV batteries, prolong battery life and provide the most efficient solar panels on the market today. It is waterproof, shock and rust resistant. The plastic frame and plastic corner sleeves (included with aluminum frame style) prevents scratching or damaging your RV. Included is the E-Z Connect adapter and with the built-in blocking diode reverse charging is prevented. Also included is the mounting kit for easy and fast installation & bright LEDs to show when the panel is ready to use. It can be used with deep cycle and gel-cell 12 volt batteries. Accessories included: male output adapter (cigarette lighter adapter), alligator clips, mounting hardware (suction cups or screws), and suction cups.