ProSport 20 PFC Gen 3 Heavy Duty Recreational Series On-Board Marine Battery Charger 20 Amp 2 Bank. Increased Power Performance.Heavy Duty Recreational Series On-Board. Marine Battery Charger. ProSport Gen 3 On-Board Marine Battery Chargers incorporate all-digital microprocessor control. Like no other, the ProSport Series provides automatic installation feedback with its exclusive System Check OK and individual Battery Bank Trouble LED indicators, and also has the most advanced energy saving mode. After fully charging and conditioning batteries, ProSport's Energy Saver Mode will monitor and Auto Maintain batteries only when needed to maintain a full state of charge, resulting in maximum reserve power performance and lower AC power consumption and operating costs. ProSport incorporates Distributed-On-Demand Charging technology, taking 100% of the available charging amps and distributing them to any one or combination of all batteries as needed for faster charging. ProSport Increased Power Performance.Heavy Duty Recreational Series On-Board. Marine Battery Charger ProSport is 100% waterproof and shockproof, weighing 40% lighter than older technology epoxy filled Advanced technology eliminates time consuming troubleshooting by clearly indicating system and batte