DC Alternator Charger Charges Three Trolling Battery * LED indicators * Red = check connection (by battery) * Green = alternator power on * Yellow = charging trolling batteries * Turns off when engine not in use * Low profile extruded aluminum enclosure * Waterproof and corrosion resistant design * FCC compliant Warning [https://productimageserver.com/prop65/6pt.png]WARNING: 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 [http://P65Warnings.ca.gov].