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

Do you really have to hand-build a spot welder to hand-build Li-ion packs? Don’t take my detour — see what you make of this one

I always looked up to the spot-welding pros, until I got one myself… turns out with full-auto anyone can do it

0.2 copper straight onto a Jiashikai negative — I’m telling you, don’t try it! It just won’t hold…

AWithZ high-power spot welder — welding lithium cells, handy and effective

AWithZ UF20B supercapacitor spot welder: small size, big power

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

A post by Repair Xiao Li (apprentice edition)

Honestly, I haven’t figured this spot welder out — 9.9 gears, and 0.1 nickel strip only needs gear 1.5 to 1.8! I haven’t figured it out and you’re still buying it after me, unbelievable

AWithZ P30C spot welder — now I can build my own 21700 power packs

A post by Miduoduo314

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

A follower asked whether the AWithZ UF20B can weld copper stacked directly; I said probably not, he said support says it can with flux. Fine — if you don’t believe me, don’t ask me again, the video is right here, see for yourself. The welder is the AWithZ UF20B from my showcase, upgraded No. 6 welding pen: copper straight on vs copper on a nickel base. Also found some followers haven’t even figured out nickel base layers… mainly I turned the power bank into a 30000mAh one, and it’s a joy

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

Welder at gear 60, welding 0.05 copper + 0.12 nickel-plated steel strip — the results

Never serve low-end customers — deep down they don’t recognise your value

Welding 0.15 nickel strip with the AWithZ portable spot welder — very solid

A portable spot welder — portable Li-ion battery spot welder

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

AWithZ spot welder gears 1–5, weld quality test

Episode 183 | When you want nothing and nothing matters, what do you do? Keep sinking, or look for something that makes you happy and try to cheer up! Life is just an experience — make sure you enjoy it

Swapping flashlight/shaver batteries with a handheld

Tool recommendation

Welder — this welder is really practical! Clear screen, simple operation, first-rate welds, a must for hardware-tool enthusiasts

0.15 copper stacked on nickel-plated strip, the result)

Spot welder

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