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4788 DC power modifications-gctid382996

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    4788 DC power modifications-gctid382996

    On my 4788:

    The starboard alternator charges the 840 AH house battery using a Balmar alternator

    The port alternator charges both engine batteries.

    The Xantrex inverter/charger charges the house bank

    The Charles Industries battery charger charges the engine, and gen batteries. It can also charge the house bank through the flip of a breaker.

    The goal is to provide get home redundancy, both in cranking current, and charging current.

    Right now i have charging redundancy through the Xantrex and Charles Industries chargers.

    To provide cranking and non generator based charge redundancy I'm considerng connecting each of the batteries together using on-off switches and 4/0 cable.

    What are your opinions on this?

    KEVIN SANDERS
    4788 LISAS WAY - SEWARD ALASKA
    www.transferswitch4less.com

    where are we right now?

    https://maps.findmespot.com/s/36S4

    #2
    ksanders wrote:
    On my 4788:

    The starboard alternator charges the 840 AH house battery using a Balmar alternator

    The port alternator charges both engine batteries.

    The Xantrex inverter/charger charges the house bank

    The Charles Industries battery charger charges the engine, and gen batteries. It can also charge the house bank through the flip of a breaker.

    The goal is to provide get home redundancy, both in cranking current, and charging current.

    Right now i have charging redundancy through the Xantrex and Charles Industries chargers.

    To provide cranking and non generator based charge redundancy I'm considerng connecting each of the batteries together using on-off switches and 4/0 cable.

    What are your opinions on this?
    Maybe I am missing something, why not just add an on/off-crossover switch to tie house and engine batteries at the control panel by the salon door. I think some early 47s have this already. Allows all batteries-except gen set to be charged with either engine running or either shore/gen charging system operable. This can be done with one Perko type switch and some short heavy like 4/0 wire.
    Started boating 1965
    Bayliners owned: 26 Victoria, 28 Bounty, 32, 38, and 47 since 1996

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      #3
      On the 290 Sea Ray I had, there was a pushbutton switch on the dash, controlling a high-amp relay, that would allow me to temporarily connect the two battery banks. As soon as the engine started I would release the switch.

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        #4
        mmichellich wrote:
        Maybe I am missing something, why not just add an on/off-crossover switch to tie house and engine batteries at the control panel by the salon door. I think some early 47s have this already. Allows all batteries-except gen set to be charged with either engine running or either shore/gen charging system operable. This can be done with one Perko type switch and some short heavy like 4/0 wire.
        That's actually a really good idea. If I replaced the existing battery switches with ones that had on off both that would do the trick.

        All it would take is a short piece of 4/0 jumper wire between switches.

        KEVIN SANDERS
        4788 LISAS WAY - SEWARD ALASKA
        www.transferswitch4less.com

        where are we right now?

        https://maps.findmespot.com/s/36S4

        Comment

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