this post was submitted on 07 Apr 2026
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flashlight

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Portable illumination

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Cell welder advice? (lemmy.ml)
submitted 2 days ago by solrize@lemmy.ml to c/flashlight@lemmy.world
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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.

[โ€“] dual_sport_dork@lemmy.world 2 points 1 day ago

It's worth a try.

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