dada2727 Posted May 12, 2009 Report Share Posted May 12, 2009 Hey guys, I have a 12V minnkota powerdrive and was wondering if I can hook up two deep cycles together so I can go longer between charges or will this not work? I am also planning on purchasing a 2 bank onboarding charging system. Thanks for the help Link to comment Share on other sites More sharing options...
Garry2Rs Posted May 12, 2009 Report Share Posted May 12, 2009 Yes this will work. If you connect red to red and black to black, you have made a bigger 12 volt battery. Link to comment Share on other sites More sharing options...
dada2727 Posted May 12, 2009 Author Report Share Posted May 12, 2009 Thanks, that's what I thought but wasn't 100% sure. Now as for an onboard charger, should I get a 2 bank charger to charge both deepcycles? Link to comment Share on other sites More sharing options...
DRIFTER_016 Posted May 12, 2009 Report Share Posted May 12, 2009 Thanks, that's what I thought but wasn't 100% sure. Now as for an onboard charger, should I get a 2 bank charger to charge both deepcycles? Yep, one bank for each battery. Link to comment Share on other sites More sharing options...
Garry2Rs Posted May 12, 2009 Report Share Posted May 12, 2009 If you leave the batteries hooked up in series they will recharge together from one charger. This will be slower and the weaker battery might not get a full charge It would be less convenient, but I think recharging them individually would be best, but I'm not 100% sure. Don't over look a three bank charger if there are accessories running off the cranking battery. My three bank came with one set of wires labeled for the cranking battery Link to comment Share on other sites More sharing options...
Jer Posted May 12, 2009 Report Share Posted May 12, 2009 The problem you might have is isolating the batteries for charging. With both batteries hooked up in parallel to provide only 12V, I don't think you can hook up separate charging banks to each battery without causing some sort of short, or more likely the charger just shutting off because it senses a full charge not coming from the battery, but from the the other charging bank. You might need some sort of switching mechanism to isolate the batteries from each other for charging (at least the positive side). ...or I could be totally wrong... Link to comment Share on other sites More sharing options...
dada2727 Posted May 12, 2009 Author Report Share Posted May 12, 2009 Thanks guys, thats kinda what I was wondering Jer, about the two batteries being hooked up together and charging them seperate. Link to comment Share on other sites More sharing options...
scugpg Posted May 12, 2009 Report Share Posted May 12, 2009 Is there such thing as a 24V battery that is of similar size to a 12V? Link to comment Share on other sites More sharing options...
Tybo Posted May 12, 2009 Report Share Posted May 12, 2009 Make sure you hook them up parallel. If you hook them up in series you have 24 volt. When using multiple batteries. you must start with fresh batteries(new). For your batteries will only be as strong as you weakest. the weaker battery will draw from the other until they are at the same amperage. You can hook up multiple chargers if the batteries are fresh. Link to comment Share on other sites More sharing options...
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