this post was submitted on 07 Apr 2026
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flashlight

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Portable illumination

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I'm wondering if there is a decent affordable cell welder. Purpose is rebuilding tool batteries and that sort of thing on an occasional basis. K-weld has been recommended but is pretty expensive and might be overkill. https://diy500amp.com/ has a bunch closer to my price range but might be underkill. Any thoughts? Thx

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[โ€“] solrize@lemmy.ml 1 points 1 day ago (1 children)

Fair enough. Jump starters often have an override button so they'll still operate when the car battery is at 0V, but IDK how it works.

It's worth a try.

Maybe later I'll post a picture of my gimcrack contraption.