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  • Technical question

    Two of my golf cart batteries died and being inquisitive I did a lot of reading on how lead acid batteries actually worked. My inquisitive nature then went into overdrive and I took an angle grinder to one of them to have a look see. Not a pretty sight because the failure was that the lead grid inside the positive plate had corroded away to nothing and there was a sludge of oxide and lead fragments at the bottom of the case shorting everything out.
    Now the question. Instead of a lead grid for the positive can something like Alloy 20 or any other metal designed to resist H2SO4 be used instead?
    I was considering recovering the oxides, washing and neutralizing them, then using hydrogen peroxide per the patent to make a paste and then paste into a grid made of corrosion resistant alloy or maybe even a conductive carbon.
    Is this realistic or am I missing something?

  • #2
    doing all that is likely more expensive than trading in the cores for new factory batteries

    yes I'm sure you can do it
    Powerfab top of pole PV mount (2) | Listeroid 6/1 w/st5 gen head | XW6048 inverter/chgr | Iota 48V/15A charger | Morningstar 60A MPPT | 48V, 800A NiFe Battery (in series)| 15, Evergreen 205w "12V" PV array on pole | Midnight ePanel | Grundfos 10 SO5-9 with 3 wire Franklin Electric motor (1/2hp 240V 1ph ) on a timer for 3 hr noontime run - Runs off PV ||
    || Midnight Classic 200 | 10, Evergreen 200w in a 160VOC array ||
    || VEC1093 12V Charger | Maha C401 aa/aaa Charger | SureSine | Sunsaver MPPT 15A

    solar: http://tinyurl.com/LMR-Solar
    gen: http://tinyurl.com/LMR-Lister

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    • #3
      Not many things I do with alternative energy make any economic sense, it's more of a hobby to slow the onset of senility after retirement.
      It's just that I know casting lead is easy, but unless an essential chemical reaction takes place with it, I don't understand why they don't use any alternatives. Even tubular plates have a solid lead core surrounded by active material. The obvious answer would be that the manufacturers don't want them to last a long time
      I shall order up some Alloy 20 and give it a try.

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      • #4
        Definitely photograph and document your journey. I'd love to see what comes of it

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