/diy/ - Do It Yourself

>>2673085
>cheapo quick way to tac weld lithium batteries?

there's a million youtube videos on the topic of making one using a microwave oven transformer.
but they all go overboard with timers and complex swing clamps, and shit.
all you really need is to clamp some sharp points of #14 solid wire to the end of the secondary, and push it against the nickel for a quarter second.