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    Dec 23, 2020 4 minutes

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    ELECTRICS

    Balancing multiple batteries in a bank

    Q I have a battery bank of six identical and same aged 140Ah Exide duals installed in my boat and I am concerned that the batteries are not connected in a fully balanced way. The setting up of four batteries is set out in various websites, but while they allude to the point that six or eight batteries can be connected I’ve not been able to convince myself that my expansion of the balanced system is correct. Can you provide a drawing of six batteries connected in an appropriately balanced way?

    Barry Biddiscombe,
    by email

    DUNCAN KENT REPLIES:

    Even very large diameter cables linking batteries together in parallel will generate some resistance, which

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