Battery Charger

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Rondog
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2008/09/05 06:23:12 (permalink)

Battery Charger

I have been looking at an on board battery charger that charges both 24v and cranking banks while your underway with an option that plugs into your trailering electrical harness that charges the system while towing.It claims that by running your motor about 10 minutes it will charge the 24v bank that you have used for about 1 hour and will fully charge both banks while towing in about 2 hours.The cost of the system is around $300.00 and can be installed in an hour.The trailering system plugs into a 7 pin plug the rest is running wires and mounting the unit.All the connections are pre made.
I have a friend who is an electrical engineer and he thinks that the hard charge will shorten the batteries life .
What do you think ?
#1

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    indsguiz
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    RE: Battery Charger 2008/09/05 10:01:19 (permalink)
    rondog,
         Not to steal the thread but I have a friend who bought two of those tiny solar chargers and he leaves them hooked up while towing and when anchored and they seem to do the job well.  He even leaves them hooked up when the trailer/boat is parked,  Always has a good charge in the batteries, and is cheaper than 300.  The wiring is easier too

    Illegitimis Non carborundum
    #2
    mikeg
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    RE: Battery Charger 2008/09/05 11:21:57 (permalink)
    Your friend is right....
     
    Assuming you're talking about deep cycles!

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    #3
    Rondog
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    RE: Battery Charger 2008/09/05 16:30:00 (permalink)
    I asked about solar panels and most thought they were great to maintain a charge but have a low volt input and would be tough to bring up a deep cycle battery.Any contrary info would be great.
    TX. Ron
    #4
    Rondog
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    RE: Battery Charger 2008/09/05 16:32:55 (permalink)
    Yup,deep cycle.Ive found out that it,s a hot set up for your cranking bank but will smoke your 24v bank
    tx. Ron
    #5
    plnoldrick
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    RE: Battery Charger 2008/09/05 18:25:28 (permalink)
    you should always charge your batteries at the maximum amount you can in the temperature range they can handle. charging them to slow will sulfate them. but then again charging them to fast can damage them if they build up to much heat. not to mention they will start gassing at a higher charge rate.
     
    with all that said,i personally opted for slow charging because sulfating takes a hell of a lot longer to damage them then rapid charging. there is actually a formula that you can use to see what your supposed to charge them at. cant remember what it is since i never used it but its out there if your interested..
    #6
    chauncy
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    RE: Battery Charger 2008/09/05 18:25:42 (permalink)
    I've been using a stayncharge setup for about 5 years now. Been charging my batteries just as good as a regular charger. Living in an apartment building with no outside plugs, it was my best option rather than carrying them up 2 flights of stairs, charging and then carrying back to the boat. I haven't burned out a battery and have gotten excellent charges from this system. I have a 24 volt system and it keeps a very good charge on both batteries. I would highly recommend this setup to a friend. www.stayncharge.com And i'm only using the original model.
    post edited by chauncy - 2008/09/05 18:35:29
    #7
    leadmen
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    RE: Battery Charger 2008/09/05 18:32:09 (permalink)
    any panel will be good make sure it has a blocking dioed and this will insure it will charge the batt a float will suck the juice out at a rate of .05 amps per hr a recovery of standerd batt is a max of 1.1amp hr thus you need a minn of 5hrs of 5amp hrs to maintain a good batt take that in and say you need a min of 15amps per day you can get a fair unit around 100 or less hope this helps
    #8
    Rondog
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    RE: Battery Charger 2008/09/06 08:42:34 (permalink)
    All great comments ! I think I have enough information to make a decision.
     thankx Ron
    #9
    Rondog
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    RE: Battery Charger 2008/09/08 18:30:08 (permalink)
    I contacted Minn Kota and put the question to them,their reply was that their On board DC. alternator charger that connects to your motor and charges the batteries while your under power will absolutely not shorten the life of your batteries
    #10
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