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  1. Railvan
    11-11-2018 07:57 PM
    Railvan
    Hello,

    Thanks for your recent help on the forum to help me understand the batteries and charging circuits on my SMB.

    I had a thought today and wondered if my idea is good or crap...

    I have the Sure Power 1315-200 and am assuming it is tied to the Start Circuit on my van, so it has the Auto Connect on Start feature. Instead of disconnecting this Auto Connect wire, and hooking a momentary switch between the 1315 and a battery, could I put a toggle switch in the wire connecting the 1315 and the Start Circuit of the ignition switch?

    I am thinking this would disable the Auto connect feature that I don't want, but when the new switch is in the ON position it would connect the house battery to the start batteries when the van ignition is in the Start position.

    Is there some reason this is not a good idea?

    I do plan to upgrade to the Blue Sea 7622, so this is a stop gap plan for now.

    Thanks for your help!

    Brian Rutherford
  2. harvey
    05-11-2018 05:08 PM
    harvey
    Hello,

    I was looking for information about isolators and stumbled across your excellent explanation and lengthy thread. I know a lot more know than before, but still have a few questions.

    We own a 1994 SMB on a Dodge Ram. The odometer is a bit shy of 160K and she's still running strong. I'm intending to keep it for as long as I can and was wondering about the life expectancy of the isolator. I have not experienced any problems, but I recognize that there is a "service life" for any device, and I'm thinking that I should put a new one in as part of my preventive maintence program. Although there is no documentation of the brand of isolator installed, from your post and photos I believe it to be a Sure Power. It is mounted in the engine compartment below the battery shelf and is one of the old, clunky ones with the cooling fins. Your insight and suggestions would be most helpful. Many thanks, Matt

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  • About Scalf77
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    Beaverton, OR
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    Engineer
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    2004 E350 EB V10 E/PH 2WD

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