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Here’s another homemade welding set up using batteries – Spelljammer writes “I bought my pulser desulfator and managed to repair 3 car batteries. I hooked them up in series and use them as an arc welder. I’ve never welded before so its been quite the experience but I’m starting to get the hang of it. After welding 1/4 inch steel for about 30 seconds my batteries and my 2 gauge cables weren’t hot. Supposedly you can run a battery welder about 5 min out of every 10…havn’t tested that though. Here are some pics of the battery bank.” Thanks Byron! – Link.