Guest Battery Isolater - Model 2403, Bank A2 melting?

WildboatingWildboating Member Posts: 957 ✭✭✭
in Electrical Discussions
Just noticed that my Battery Isolater has some melting going on the rubber boot.  I just replaced a 4 batteries in the boat last week since the former were incorrectly wired, battery switch was set to all and they had become very weak.  Is this damage that could have been done formerly?  What should I check or how should i check the system?  
2003 Rinker 342 Fiesta Vee, 350 Mag MPI, Bravo 3 2.20:1 w/ 22p 4 x4 props

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  • Black_DiamondBlack_Diamond Member Posts: 5,439 ✭✭✭✭✭
    Is that damage new or just noticed it?  Had to get pretty toasty to melt that.

    how were the batteries incorrectly wired?

    Past owner of a 2003 342FV
    PC BYC, Holland, MI
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  • Dream_InnDream_Inn Member, Moderator Posts: 7,672 mod
    That would definitely concern me.  Make sure you wired things correctly first off.  & as BD asked, how were they wired before?

    Dream 'Inn III -- 2008 400 Express

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  • BellevilleMXZBellevilleMXZ Member Posts: 732 ✭✭✭
    Probably a poor connection there.....resistance =heat
    2005 Rinker 270 FV Volvo Penta 5.7Gi
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  • WildboatingWildboating Member Posts: 957 ✭✭✭
    I went to replace house batteries recently, I had the radio on as I was disconnecting the house batteries.  I get both batteries disconnected and discover radio was still on.  Few seconds later I hear the fridge kick on...  I start digging around and find that one of the engine connections is attached to a house battery, the house power lines were on a starting battery.  I took everything off all batteries and 1 by 1 connected 1 line to the batteries then searched out what was now working.  I now know the house is ran on house batteries and starting is on starting batteries.  Previous owner or mechanic fubarred the wiring.  

    I don't know if it's new or recent but I don't recall seeing it before.  Any ideas where to look?
    2003 Rinker 342 Fiesta Vee, 350 Mag MPI, Bravo 3 2.20:1 w/ 22p 4 x4 props

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  • WildboatingWildboating Member Posts: 957 ✭✭✭
    I wonder if my alternator is acting up since that is an alternator input.
    2003 Rinker 342 Fiesta Vee, 350 Mag MPI, Bravo 3 2.20:1 w/ 22p 4 x4 props

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  • Black_DiamondBlack_Diamond Member Posts: 5,439 ✭✭✭✭✭
    Easy enough to pull off and get tested. Is it warm to the touch now with the new batteries and corrected wiring?

    Past owner of a 2003 342FV
    PC BYC, Holland, MI
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  • WildboatingWildboating Member Posts: 957 ✭✭✭
    I will check it today BD, bye the way how do you test it?  

    2003 Rinker 342 Fiesta Vee, 350 Mag MPI, Bravo 3 2.20:1 w/ 22p 4 x4 props

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  • Black_DiamondBlack_Diamond Member Posts: 5,439 ✭✭✭✭✭
    Any auto parts store can check it for free. 

    Past owner of a 2003 342FV
    PC BYC, Holland, MI
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