Ep. 2 | Spot welder comparison — a home-built one off Xianyu vs a bought one! Money talks! The quality really is different

Lithium batteries, spot welder — I recommend this one, compact and powerful

Sharing a handy DIY tool today: the AWithZ handheld spot welder

A post by Repair Xiao Li (apprentice edition)

A neat trick for welding Li-ion cells

AWithZ portable Li-ion spot welder — building a power-tool battery pack with the AWithZ portable welder

Trying the AWithZ small handheld spot welder — if you don’t weld much and want to do some DIY, worth considering

DIY tools | A portable spot welder — niche but professional. I’ve been building a solar-lamp project lately and need to weld lithium packs for storage. I’d always used a soldering iron, but soldering lithium cells is slow and a safety risk, so I got a portable spot welder (AWithZ U3) and it works well. Compared with an iron, pulse spot welding avoids cold joints, the nickel strip sits tight, no hot iron is needed so there’s less risk of damaging the cell, and it’s very fast — one weld in 3 seconds, ideal for batch work. Spot welding was new to me, but it really is better suited to battery mods than conventional soldering

Swapping flashlight/shaver batteries with a handheld

Handheld portable spot welder, adjustable heat, swappable tips

Compact smart spot welder with a colour screen for adjusting weld mode and strength — makes repairing and DIY-building battery packs really easy