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On Board 3 Bank Battery Chargers?

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I need help. What brand is a good economical (Under $250) 3 bank on board battery charger for a 36 volt trolling motor system?

I have a 36 volt 101# thrust Minn Kota. Currently I have a ProMariner Pro Sport 15amp 3 bank charger which has broke 3 times. The first 2 times it was under warranty in which they sent me a whole new unit, but now it has failed again and is out of warranty. When I charge my batteries only the green LED light comes, not the red so it's not delivering a charge for some reason and I really don't want to send it in for repair since I have had multiple problems with this brand.

What about a Minn Kotta 3 bank charger? They offer a 15amp and a 30amp. The 30amp is only $30 more than the 15amp.

Any other brands or suggestions that you have had good luck with.
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   skinnywtr
Coot,
I tried to email you but I'm not sure if it went through. I have a 3 bank Minn Kota for sale in the classifieds. I live in Covington which I believe is close to you if I'm not mistaken. Moved some batteries around in my boat and couldn't use the three bank anymore so I bought a 2 bank.
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I have been using a Minn Kota 3 bank charger for the last 6 years and no problems.
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    Coot
How much you asking? I live in Mandeville.
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   JB
Check Dual Pro's website. A couple of years ago they were selling remanufactured chargers for less than half price. I picked one up and haven't had trouble with it. They come with a 1 year warranty.
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   skinnywtr
$150 I work in Grand Isle, but will be home Thursday afternoon of you would like to see it. Works like a champ. 985-789-435nine
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    Coot
Is it a 15 or 30 amp? They have brand new 30 amp Minn Kotta 3 bank charges with a 2 year warranty on ebay for $188 and 15 amp chargers for $155. Just saying.
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Based on your stated problem I would look at your batteries 1st to see what is going on. You should be using deep cycle batteries only. All 3 should be the same type and model. The batteries have a specific way to be wired together to give you the 36 volts. The batteries need to be checked for fluid every 3-4 re-charges, If low on fluid add distilled water to them.
Have you checked the voltage at the end of each series of wires coming from the charger?
Have you checked yopur fuses?
Have you load tested the batteries?
Do you have a good ground?

Many things can be the problem other than the charger. I have a 3 bank and a 2 bank Minn Kota charging 5 batteries on my boat and it has been over 4 years with no problems.
A new charger may not fix your problem if it is the batteries. How old are they? What type? Have you checked fluids? Have you checked the voltage on your batteries?

E mail me if you have any questions.
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Coot I have the 2-bank Minn Kota in my bay boat and it's working well so far, got it new with boat April 2011. Seems to be well built
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   skinnywtr
It's a 30Amp...
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    Coot
Thanks. I plan to do all of this too before I replace the charger. The batteries are a year old, deep cycle marine closed cell maintenance free. They are wired correctly etc.. The charger has been working fine for the last 3 years, then all of sudden when I plug it in only the green LED light comes on and not the red. After fishing when I plug the charger in, the red LED light should come on indicating charging, but it's not. Only the green. Then my last two fishing trips I noticed that my battery juice was about zilch and very weak so the batteries are definitely not charging. The charger has power since the green LED comes on when plugged in. Not sure what the problem is. I know I don't like this brand of charger.
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Historically they have been some great chargers with service after the sale like no other. I used to deal with Ms. Sue on any issues folks may have had. One guy fried his charger by having the pos and neg connections grounding out on each other.I called and spoke to Sue about possible warranty on an older unit, she had a replacement sent out that day, no questions asked.
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   Iceman
I've had a 2 bank Minn Kota charger in my bay boat for 6 years. No issues, knock on wood.
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   bonephish
AllisonXR-01, Sue Delaney left Guest and the customer service is lousy.

Coot, Check to see if any of the fuses are popped. I had a similar issue with my last Guest charger, green light only on one bank, never charged one battery.

I got a Minn Kota 15 amp and like it a lot. I leave it plugged in all the time.
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    Coot
For the comments guys. Hopefully I will get to this and look at it this weekend to find the problem. Time to get the bay boat cleaned up and ready for the March Madness trout run.
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Coot, I agree with Rory had my last minn kota 3 bank on my century for 7 years before it went out, new boat I have a 330 minn kota , it always charges them quick I would not reccomend anything over 10 amps per lead you don't want something taking the life away from your batteries over time,, always go with a good name brand, now Sal my mechanic, he loves guest over minn kota, you can pick those up at west marine 2 bank for $109 and they are tiny , not sure the cost of the 3 banks but of all places west marine is cheaper on those name brand chargers than ebay after tax.

I prefer minn kota their name says it all. Now one thing the guest has that minn kota doesn't is the GUEST PLUS PRO chargers only academy has these haven't found them anywhere else, they hook to the alternator on the boat and charge when the big motor is running incase 2 day tournament or you staying somehwere for a tournament and boat is left in water, not at the THC, every little bit counts, now even though the minn kota are huge and the guest are like 6' x 6' x 3' , I still prefer minn kota no matter what the cost, last time we fished you had a trolling motor issue, yah get that issue fixed , lol, how does your schedule look the week after this one for thursday of friday ish!! Tentative!
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   jls
Ummmm I have what ever came Factory in my from Bass Tracker its 09 Model no Trouble yet its Just Plug&Play
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    Coot
Dixie Trolling Motors who I use for my repair work recommends a Dual Pro Sportsmen Model which runs $299.00 vs the Recreational model which sells at $180.00. The sportsmen model has 5 LED lights which will indicate where a problem might be if one battery goes bad for example or is not charging. Should I just go ahead and spend the money to have a hassle free charger. Nothing worse than not having a good charge on your batteries.
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I've had a Dual Pro on my boat for 5 years now with no problems...I use the two bank, 15 amp version for my trolling motor batteries..This model has the 5 red and 1 green lites..A very good and very reliable product...mel
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    Coot
I found my problem with my POS 3 Bank ProMariner On Board Charger. It had a blown fuse to 1 of the 3 batteries and appears to be working at the moment, however 1 battery is not fully recovering. After letting the batteries charge overnight I get voltage reading of 13.22 on 2 of the batteries and a reading of 10.86 volts on the other battery which was load tested too as being weak to bad. So my question is and I know they say to always change out batteries in a series, but can I just replace that one bad battery without hurting anything? At a cost of $125/battery and considering the batteries are only 1 year old, I hate to place all 3 batteries to my 36 volt trolling motor. If I only swap out the bad battery, what are the problems I might have? I do plan to buy a new 3 Bank Dual Pro Sportsmen Series charger which has the 5 LED lights for each bank and will give me different codes such as bad battery, not charger, bad connection, etc...
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   daberry
I have tried a bunch of different on-board chargers over the years and have not had any success until 2005 when my new boat came with Minn Kota. I have a 3 bank for the trolling motor and 1 bank for the cranking battery. When I got the boat it had some cheap batteries which I did not expect to last a year. But with the Minn Kota chargers they just kept going and never stopped until I changed them out because they were leaking acid into the hull as they were not sealed. That was after about 5 years. I have never had trolling motor batteries make it more than a year in the past, but these just keep going. I did loose one because I crushed a fuse and did not realize it until I looked down at the charger and saw one of the indicator lights on the battery was not green. I checked the fuse and saw it was crushed, but it was too late for the battery. Now I check the indicator lights after each charge. There may be better chargers, but this is the best charger I have ever used.
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If the battery is only 1 year old it should be under warranty.
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I need help. What brand is a good economical (Under $250) 3 bank on board battery charger for a 36 volt trolling motor system?
Under $250 you can use ProMariner ProSport 20+ Generation 3. Its a one of the best 3 bank marine battery charger in the present market, Because The Pro Sport series being incorporated with a distributed- on- demand charging technology. And it helps batteries to re- condition for both short- term and long-term storage time. You can read this article : http://trollingpowersolution.com/best-3-bank-marine-battery-charger/ and this is a complete guideline about this product.
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