DC Alternator ChargerCharges Three Trolling BatteryLED indicatorsRed = check connection (by battery)Green = alternator power onYellow = charging trolling batteriesTurns off when engine not in useLow profile extruded aluminum enclosureWaterproof and corrosion resistant designFCC compliantWARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.