mikey03 Posted June 16, 2009 Share Posted June 16, 2009 I need some help a little confused on the on board charger I just bought. I purchased a mk 210 on board charger and my assumptions were always that the on board chargers took the power off the boats alternator. The one I purchased has a AC cord on the end and I'm kind of confused to why you would want this style? just so it is easier to charge when you get back home? anyone that could help me out on what I'm looking for I greatly appreciate the help! thanks! Quote Link to comment Share on other sites More sharing options...
PerchJerker Posted June 16, 2009 Share Posted June 16, 2009 The charger that pulls off the alternator is a DC charger, sometimes called a charge on the run system. Most on-board chargers are AC chargers that you plug in when the boat is in your garage and unplug when you take it to the lake.You can see the Minn Kota AC and DC chargers and their differences HERE Quote Link to comment Share on other sites More sharing options...
marine_man Posted June 17, 2009 Share Posted June 17, 2009 You will get a much fuller charge with the AC version (plug in style, like you have) than with the version that charges from your boat's batteries, unless you have a high HP motor with a high amperage output or run a long ways at full throttle during a typical fishing trip.marine_man Quote Link to comment Share on other sites More sharing options...
Trollin226 Posted June 17, 2009 Share Posted June 17, 2009 I have the AC style and for me it works great while in my garage I leave it pluged in. Unplug it when I go fishing and batteries are always charged up and ready to go. I run a dual pro charger that shuts off when the batteries are at full charge. It moniters the batteries and when they dip down it will automatically turn back on to keep them topped off. Quote Link to comment Share on other sites More sharing options...
crothmeier Posted June 17, 2009 Share Posted June 17, 2009 the motor is usually hooked up to the cranking/starting battery and charges that as you run the big motor, and usually the on board charger is hooked up to your deep cycle/trolling motor batteries. We just put one in my dads boat and like Trollin226 said it stays plugged in all the time and keeps the batteries topped off but not over charged. We have a 2 bank that puts 5 amps to each battery. Quote Link to comment Share on other sites More sharing options...
pinkfloyd4ever Posted June 17, 2009 Share Posted June 17, 2009 you will soon appreciate it, never wonder if your batteries are charged or not. Quote Link to comment Share on other sites More sharing options...
marine_man Posted June 17, 2009 Share Posted June 17, 2009 usually the on board charger is hooked up to your deep cycle/trolling motor batteries It is getting more common to buy a 3 bank charger as well, to charge both trolling motor batteries and your starting battery.marine_man Quote Link to comment Share on other sites More sharing options...
crothmeier Posted June 18, 2009 Share Posted June 18, 2009 that would make sense! money allowing Quote Link to comment Share on other sites More sharing options...
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