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I am in the process of constructing a capacitor discharge spot welder to assemble rechargeable battery packs as I need them for battery operated tools I have. Genuine original battery packs usually cost more than the original tool. My first effort was using spring type AA holders. These worked but were so so. Mark 2 effort used soldered brass straps. Much more efficient. I have since bought the proper plated strap material and found the idea for constructing a spot welder rather than soldering and possibly overheating the cells. I have tested the process using scrap cells and the process worked. Now all I need now is for one of the current battery packs to reach it's use by date. I originally tried a different brand of capacitor of a lower (375F)capacity with no success. It went into the recycle bin.Read full review
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Verified purchase: Yes | Condition: New