I always looked up to the spot-welding pros, until I got one myself… turns out with full-auto anyone can do it
Creator’s own settings as stated in the video (timestamps link to the moment). Not official values — test on scrap first.
Bill of materials
Welder, accessories, consumables and parts used in this build; quantities and specs are editable Download BOMDescription
Li Dapang, 44 seconds: with the welder in hand, welding nickel strip is easy; bold idea — put a screw on a washer and spot-weld it, hold it down and it’s welded (a bit hot); ‘no more special welding oil from now on’; ‘with automatic you become a pro instantly’; comments: even 0.2 steel strip won’t weld, a ¥50 thing sold for ¥180, how thick can stacked copper go
Always looked up to the spot-welding pros, until he got one himself — turns out with full-auto anyone can do it. With the welder in hand, welding nickel strip onto lithium cells is already very easy; bold idea: put a screw on a washer and spot-weld it — just hold it down, right? It welded (a bit hot); try another one, hold it down and full-auto fires; no more special welding oil from now on; what else do you think it could do. 37 comments: ‘fake-one-pay-ten, if it works like the video I’ll order ten’ (11); spot-welding sheet iron and stainless has been done before (Li Mutou) (6); ‘no good, my 0.2 steel strip won’t even weld’ (5, creator: with automatic you become a pro instantly); spot welds can’t carry big current, no better than solder, only good for low-power batteries; how thick can stacked copper go; a ¥50 thing sold for ¥180; can it re-tab big prismatic cells.
Outcome
| Goal | Playing with the welder: screw welded to a washer |
| Build | U3 + screw / washer |
| Result | It welded · verified on camera: 20–23s ‘it’s welded’, picked up and shown |
Steps3 steps · click a frame to jump
1. Welder in hand, nickel strip is easy; bold ideaWith the welder in hand, welding nickel strip onto lithium cells is very easy; bold idea — put a screw on a washer and give it a try.
00:00 – 00:14
2. Hold it down and weld: it’s on (a bit hot); try anotherJust hold it down, right? Look, it welded; a bit hot; try another with this one, hold it down and full-auto fires.
00:14 – 00:40
3. No more special welding oil; what else can it doNo more special welding oil from now on; what else do you think it could do.
00:40 – 00:45
Bill of materials
| AWithZ U3 welder ×1 | Full-auto · Playing around |
| Screw / washer | Test weld |
Creator’s tips
- In auto mode, hold the pens in contact and it welds; beginners can pick it up 00:26
Pitfalls
- Comments: 0.2 steel strip won’t weld; can’t carry big current
Li-ion safety
- The welded part is a bit hot afterwards 00:19
Quotes
Comment insightsanswered 1 · open 2 · corrections 3
Answered by the creator
Open questions
Corrections from viewers
Back a ten-for-one guarantee that it works like in the video and I'll order ten
Reply @苏N:
Spot-welding sheet metal and stainless, someone's already done it! Li Mutou I think
Reply @哈哈一族:
Not good, mine can't even do the 0.2 steel strip I bought
Reply @坏人波哥:
With auto mode you're a pro in an instant
Reply @李大胖~:
I hear spot welds can't carry high current, those few small welds are worse than solder, only good for some low-power batteries
Reply @儿时回响:
How thick can it weld stacked copper
Reply @陌染:
Looks like it works well
Reply @一路晴天:
Could it be any pricier, a ¥50 item for 180
Reply @用户1202786270621:
Can this fit nickel tabs on big prismatic cells
Reply @孤单行走人生路:
Back a ten-for-one guarantee that it works like in the video and I'll order ten
Reply @苏N:
Spot-welding sheet metal and stainless, someone's already done it! Li Mutou I think
Reply @哈哈一族:
Not good, mine can't even do the 0.2 steel strip I bought
Reply @坏人波哥:
With auto mode you're a pro in an instant
Reply @李大胖~:
I hear spot welds can't carry high current, those few small welds are worse than solder, only good for some low-power batteries
Reply @儿时回响:
How thick can it weld stacked copper
Reply @陌染:
Looks like it works well
Reply @一路晴天:
Could it be any pricier, a ¥50 item for 180
Reply @用户1202786270621:
Can this fit nickel tabs on big prismatic cells
Reply @孤单行走人生路:
Back a ten-for-one guarantee that it works like in the video and I'll order ten
Reply @苏N:
Spot-welding sheet metal and stainless, someone's already done it! Li Mutou I think
Reply @哈哈一族:
Not good, mine can't even do the 0.2 steel strip I bought
Reply @坏人波哥:
With auto mode you're a pro in an instant
Reply @李大胖~:
I hear spot welds can't carry high current, those few small welds are worse than solder, only good for some low-power batteries
Reply @儿时回响:
How thick can it weld stacked copper
Reply @陌染:
Looks like it works well
Reply @一路晴天:
Could it be any pricier, a ¥50 item for 180
Reply @用户1202786270621:
Can this fit nickel tabs on big prismatic cells
Reply @孤单行走人生路:








