MK 210D On-Board ChargerON-BOARD MARINE BATTERY CHARGERS.Reengineered with a microprocessor-based design, our all-new digital on-boardchargers protect your battery, charge faster, and help you stay on the water longer.DIGITALLY CONTROLLED. We set out to build a smarter charger, and the result is the ingenious microprocessor-based design of our new on-boardunits. By monitoring factors like temperature and state of charge, they deliver a faster, more regulated precise charge so you can stay on the water longer, without worrying about your batteries.PROTECTS BATTERIES.Our new on-board chargers feature Multi-Stage Charging and Automatic Temperature Compensation for more precise charges that won't damage your battery. And its automatic shut-off feature extends battery life by shutting down when charging is complete. So your battery and your day on the water will always last longer.=TWO TIMES FASTER CHARGING.In high temperatures, our new on-board chargers juice up your batteries up to twice as fast. Thanks to a digital design that monitors everything from temperature to state of charge, our new on-boards get the job done.ENHANCED STATUS CODES.Comprehensive readings on our new chargers inform you of the charge stage, maintenance mode status, any error notifications and full charge.Waterproof, shock- and vibration-resistant aluminum constructionSaltwater tested and fully corrosion-resistant Short circuit, reverse polarity, arc and ignition protectedFor use with 12V/6 cell batteries that are flooded/wet cell,maintenance free or starved electrolyte (AGM) onlyFCC compliantUL listed to marine standard 1236Length - 11-1/2"Width - 7-1/2"Height - 4"Weight - 11lbsWARNING: 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.