Battery Tender Junior, Battery 12V, 750 mA, Battery Charger & Maintainer, Ideal Charger For Automotive, Motorcycles & Electric Start Lawn Mowers, Will Charge & Then Maintain The Vehicles Battery For An Indefinite Period Of Time, Keeping The Battery & Vehicle Ready To Go When You Are, Includes With An 80 Hour Safety Timer, California Compliant, 5 Year Warranty.