Battery charger hookup

[Hook1]

I have a Guest two bank charger and three batteries on my boat. My trolling batteries used to be in parralell when my trolling motor was a 12V. I changed to a bigger trolling motor this year and its a 24V so I had to change my battery jumper. The problem is I can't charge all my batteries at once any more. I have to charge cranking and one of my trolling batteries first, then disconnect one of the charger leads and hook up to the third battery to finish the set. Is there any way with a two bank to charge the three together or do I just need to upgrade to a three bank? It sure was easier with the two 12V batteries hooked up parralell because the + and - were simply jumpered together. Now with the 24V system they are in series. Any of you figured out a way to do this with a two bank? emoThanks

 

[Strato-G]

Just buy a simple portable charger for the crank battery & use 2 bank on troll batts, the new single chargers charge full & then adjust to maintain if u leave connected all time........can get these at several places for $35.00 ............. emoGeezer emoUSA

 

[jbh3]

IMO, the best solution is to upgrade to a good, 3 bank charger. You should be able to sell your 2 bank and recover some $$. Good luck!

 

[Hook1]

Thats kind of what I was thinking. I always have to stay up until the first round of charge is done then unhook one battery to finish up the third. Pain in the butt.

 

[TKbigbass]

Dual Pro's 3 bank15 amp per bankPro Series on board charger is the way I would go. I've had one for 9 years and it's still going strong.emoThumbsup emoThumbsup Plug it up soon as you get home from the lake as letting batteries set uncharged will shorten their life.

 

[Liveliner]

One simple solution would be a marine selector switch. Connect your two bank charger to your TM batteries. Then connect TM battery #1 through switch to Cranking battery. If you are using your boat on a reasonable consistency, you really have much less need to charge your cranking battery. The only time you need to charge your starting battery is when it is stored for long periods

 

[Hook1]

Great point LL I always forget once the motor is running the cranking battery gets a charge off of it.