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Shumacher battery charger HELP!

Discussion in 'Power Electronics' started by BigSmoke, May 12, 2021.

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  1. BigSmoke

    BigSmoke

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    May 12, 2021
    I tried to charge that battery for my dirt stock car and...that charger just doesn't have the power that it used to, so I decided to look into the problem, upon removing the side panel I notice a few wires coming from the transformer to a metal plate with what appears to be diodes attached to it are broken off, now I'm an apprentice electrician so I have some "know how"
    Anyone know how to fix this?
    Are the connections spot welded? Soldered?

    Product is a shumacher sf 2001
     
  2. Harald Kapp

    Harald Kapp Moderator Moderator

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    Nov 17, 2011
    pictures? (max. 300 kB).
     
  3. BigSmoke

    BigSmoke

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    May 12, 2021
     
  4. BigSmoke

    BigSmoke

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    May 12, 2021
    It's not letting me for some reason
     
  5. BigSmoke

    BigSmoke

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    May 12, 2021
    20210512_094506_compress2.jpg 20210512_094514_compress58.jpg 20210512_094521_compress29.jpg
     
  6. Bluejets

    Bluejets

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    Oct 5, 2014
    They're spot welded on to the plate.
    One can replace with "stud" type diodes of appropriate current and voltage rating by drilling about 6mm hole in the plate for each replacement diode.
    You will need to test or visibly inspect each diode for polarity and replace the same way they come off.
    i.e. there are common Anode and common Cathode stud diodes.
    Places like Ebay, Digikey should have replacements.
     
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