SOLAR-POWERED PERFORMANCE FOR FREQUENTLY-USED AND STORED VEHICLES AND EQUIPMENT. BESIDES KEEPING BATTERIES SULFATE FREE, SOLARGIZER ALSO PREVENTS THE NORMAL LOSS OF BATTERY POWER ON STORED VEHICLES AND EQUIPMENT NO MATTER HOW LONT THEY SIT UNUSED ---EVEN MONTHS AT A TIME. THE UNIT IS WEATHERPROOF, EASY TO INSTALL AND WILL NEVER OVER CHARGE THE BATTERY. THE SOLAR PANEL IS VIRTUALLY INDESTRUCTIBLE AND INCORPORATES THE FINEST QUALITY SINGLE GROWN PHOTO-VOLTAIC SOLAR CELL AVAIALALBE. AN LED LIGHT ON THE CIRCUIT BOX INDICATES THE CIRCUIT IS ENERGIZED AND WORKING. THIS SOLARGIZER MODEL HANDLES UP TO 12-VOLTS AND IS IDEAL FOR CARS, BOATS RECREATIONAL VEHICLES, CONSTRUCTION AND FARM EQUIPMENT, AND DEEP-CYCLE PRODUCTSSSS. TEN-YEAR WARRANTY.