#AWithZ spot welder

Which platform

[Welding test] UF20B: palm-sized, with the strength of a thousand pounds. 0.2mm pure nickel sheet on an 18650 pack, solid welds, energy focused in an instant #AWithZSpotWelder #diy #CompactSpotWelder #GeekMods #ElectronicsHobbyist

[Unboxing moment] UF20B — a professional power station in your palm. No preheat needed, one-button stable welding, easy spot welding, enjoy the assurance of every precise weld! #AWithZSpotWelder #diy #CompactSpotWelder #GeekMods #ElectronicsHobbyist

Welds you can't tear apart! Don't be fooled by the small size! H1 handheld spot welder, straight out of the box onto 18650 cells: welds you can't tear off — beginners, buy with eyes closed! #AWithZSpotWelder #EquipmentReview #ElectronicsHobbyist #HardwareTools #WeldingWonderTool

On the left, from the second-hand market (Xianyu), ¥180 and no charger, you sort your own; on the right, from the Douyin store, ¥500, and there’s a difference: this lead (Xianyu machine) is thinner than my life, pitiful, and the tips aren’t even one piece; (the AWithZ’s) are so rounded, they say it handles 0.4 nickel strip, seriously strong, and it has a button, aluminium-alloy shell (nameplate UF20B 6.0V / 1750A / 10.5kW / 100–240V, Juequi Technology); I can’t really read power ratings, I just buy the pricey one, the pricey one’s stronger, that one’s low power. The Xianyu machine throws sparks on every weld; this one is different, the pen has a switch underneath so you don’t need to hold anything, just go bang-bang-bang rapid-fire, so much fun, burnt the tablecloth, the genuine AWithZ; and this isn’t even the top gear, it’s on 31, 99 is harsher; big thumbs-up for that switch, so convenient. Switch to gear 99 and weld a utility-knife blade: whoa, a stainless blade this thick nearly welded on, welded through, how’s that for strong; don’t recommend welding like this, too hard on the machine; blew right through the blade. 613 comments: the bought one wins, AWithZ is reliable (is this brand that big a deal?); Duokerui and AWithZ are about the same, which is stronger (they say they may well be the same company); bought a P120 for ¥2600 on promotion, ribbon cable loose, returned, don’t trust the QC (let me try one too); good enough, fairly strong, easy to use (it really is strong, the pen button is super handy, the lead’s just short); at ¥180 back then there wasn’t even a pen, better to buy Kekaike; both of the desk-top ones are toys (how big does it have to be to not be a toy); a hand-built microwave-transformer one has far more current and sits gathering dust; a ¥400 one off Xianyu does 0.4 aluminium-nickel easily; supercapacitor + LTO builds are cheap and powerful.

What's this lamp tube part called?

0.4MM copper sheet fused in an instant — see the result ~ AWithZ P90C all-new supercapacitor spot welder (56.8KW) #AWithZSpotWelder #WeldingEquipment #GeekMods #GoodFinds #EquipmentReview

AWithZ H1 in action: 0.15mm nickel strip on cylindrical cells — handheld design, simple and easy to pick up. Click to learn more and raise your weld quality! #AWithZSpotWelder #Geek #Repair #Tools

Pushing the limit — AWithZ P60F hardcore copper welding! 0.4mm copper sheet + 0.1mm steel sheet? Way beyond the official 0.3mm copper — real-test results beyond imagination! Full parameters at the end, come copy the homework! #AWithZSpotWelder #Geek #Repair #Tools #Double11

H1 handheld dual-pulse spot welder — the battery-welding wonder tool, nails 0.2mm nickel strip perfectly. Precise control, professional results, super easy to pick up! #AWithZSpotWelder #BatteryWelding #ToolNerd #GoodFinds #Double11

[Copper welding] No sweat! UF20B spot welder, efficient and stable, no cold welds! #AWithZSpotWelder #WeldingEquipment #ElectronicsHobbyist #diy

Sharing money-saving experience from hand-building lithium packs so beginners spend as little as possible. The three-piece kit: the welder is essential, the internal-resistance meter is optional, the load tester is optional — a beginner only needs a welder, skip the other two for now; early on, only build small packs and order straight from the cell brand’s official channels (EVE official site / Tmall / Alibaba; the page shows 18650 3.6V 3200mAh / 2850mAh etc.), which basically needs no testing — with a welder you can build right away; think about instruments later when going to big capacity. Key point — which welder suits a beginner: buy the most expensive one you can accept within your budget, and go for a big brand as far as possible; this is the third welder I’ve bought (AWithZ); one feature is very beginner-friendly: the pen sits on the cell for ages and nothing happens, because the manual weld button hasn’t been pressed — press it and it welds instantly, the semi-auto mode; beginners often mis-place the spot or set the nickel tab crooked, and if the pen welds the moment it touches, the cell is ruined, so a semi-auto button is best to have; there is also a repeat-pulse mode that welds the same spot repeatedly, suited to copper sheet that needs more power — hold the pen steady and it fires up to 3 welds in quick succession. Mine is the AWithZ U3 Pro: pure nickel 0.2mm MAX, and it also does steel and copper sheet (copper 0.1 MAX; nickel-plated / steel / iron 0.35 MAX); nameplate U3 battery spot welder, 4.2V MAX, Type-C 5V/2.1A, USB 5V/2.4A, 11000mAh 40.7Wh, Juequi Technology; plenty for a beginner. Consumables: glass-fiber tape, heat-shrink film, fish paper. A special note on cells: this is the positive, this side is negative — many people don’t know the whole can is negative; open one up and everything except the positive is negative, so positive insulation is critical, always use positive fish paper. Non-essential accessories aren’t covered; get the three-piece kit straight and you save a lot. Comments: asking for the EVE official link (search results are all ads) (2); lend me the welder for two spots nearby; can UV glue join them; what battery for a 24-set net-hauling boat; a mis-weld ruins the cell? can’t you pull it off and re-weld?

[Aluminium-to-nickel] The problem-ender! [Aluminium-to-nickel welding] The problem-ender! AWithZ P30C spot welder — tough welds made easy! #AWithZSpotWelder #GeekMods #MustHaveForVeterans #WeldingEquipment #DIYGuru

What about charging?

How thick is the copper

Precision spot welding, solid in an instant! A professional spot welder that's a step ahead in efficiency! One machine, many functions — save the cost of several devices! All-new P30C supercapacitor energy-storage spot welder #AWithZSpotWelder #WeldingEquipment #CapacitorBlackTech #ElectronicsHobbyist #diy

Bilingual Chinese / English captions. Followers want to DIY FPV drone packs with a good discharge rate and long flight time, so first the prep: the pack body is 21700 or 18650 — the former has a higher discharge rate and more capacity but is bigger, choose to suit; fish paper; balance leads (pick a balance connector for however many S you need); power leads; copper and nickel strip; heat-shrink tubing for the outer protection. Tools: scissors, a soldering iron, and most important the spot welder — this AWithZ compact spot welder UF20B, which reaches welding condition in about 1 minute, much faster than the 20-plus minutes of other welders on the market; high power, up to 10.5kW, up to 1750A output; officially rated to weld 0.4mm nickel-plated steel strip, easily enough for drone packs; the welding pen has two modes: auto (press and it fires) and manual (pen trigger); preheat time selectable 1–10ms, 1 or 2 pulses selectable; screen reads 29°C. Assembly next episode. Comments: ‘it’s your fault, I bought the same one’; 18650s blow up easily, pouch cells are safer (creator replied); can pouch cells be used (creator: yes); only use it a few times a year so bought a P60F; does the welder go bang.

⚠️Soldering cells with an iron can damage them? A spot welder is faster, safer and more professional! The right way to weld batteries, revealed — get twice the results on your DIY projects!🔋⚡#AWithZSpotWelder #WeldingEquipment #Battery #Repair #UnorthodoxHacks

A friend asked for a night light made from 18650s. First an intro to the AWithZ U3 handheld welder he recently received: very compact, about the size of a power bank, with a USB output that can charge a phone; the weld strength gear is set by material, and 80 gears cover every need; supports manual or auto spot welding — in manual mode a press of the pen button fires the weld, and the result is excellent (demoed by welding a nickel tab on a cell’s negative end). Then an immersive no-narration build: nickel tab leads spot-welded onto purple 18650 cells, copper wire wound into a ring as the lampshade frame, LED filament and posts soldered, potentiometer / charging module and USB socket, several 18650s spot-welded side by side as the lamp base; the finished piece is a retro filament-style table lamp. Comments ask what the lamp-tube part is called, which control module to use, where the battery connects (couldn’t tell), what about charging, how thick the copper is; some say “toy welder” or “third-hand welder?”; a suggestion that with a housing it could be sold.

Battery trouble ≠ scrap the whole machine. One ¥100-class spot welder revives a ¥1,000-class laptop battery: save ¥500 on a replacement, a beginner does it in 10 minutes #AWithZSpotWelder #WeldingWonderTool #ComputerRepair #HomeTools #ElectronicsHobbyist

The secret repair shops won't tell you: ¥500+ to weld a laptop battery once? A ¥100-class welder handles it — your go-to for emergency repairs! #AWithZSpotWelder #WeldingWonderTool #ComputerRepair #HomeTools #ElectronicsHobbyist

Stop begging the repair shop! With the AWithZ handheld H1 spot welder, replace your laptop battery yourself and save ¥500 in one go! #AWithZSpotWelder #WeldingWonderTool #GoodFinds #HomeTools #ComputerRepair

A palm-sized repair wonder! Before unboxing: what can this toy weld? After unboxing: easily welds 0.15 nickel-plated strip + 18650 cells #AWithZSpotWelder #EquipmentReview #ElectronicsHobbyist #HardwareTools #WeldingWonderTool

Pick it up in seconds! No learning needed! A spot welder you can use after one watch: power on – pick a gear – weld; even the all-thumbs crowd can make pro-grade welds! #AWithZSpotWelder #EquipmentReview #ElectronicsHobbyist #HardwareTools #WeldingWonderTool

Opens with ‘I’m hooked, taking my ex’s cleaver to unwind, weld weld weld’, then ‘real work comes first’. Process (no narration, watching the footage): CNC-mill small copper tabs (comment: 1mm copper plate is a bit thick and won’t take a weld, hence small tabs); 3D-print a four-hole cell holder; caliper measurement; laser engraving; four cells (14500/16340-class small cells) go into the holder, the U3 Pro spot-welds nickel strip into 2S2P; multimeter reads about 7V (2S); green heat-shrink seals it into a flashlight pack that goes into a Wurkkos SP10-class 8.4V light; ‘open for business +1’. 73 comments: how much sponsorship did you take, even 1.5 nickel-plated is a struggle, badly over-rated, just returned mine (no sponsorship money exists); not even a BMS? (no suitable board, the stock battery has no balance board either, a generic board won’t fit in a flashlight, a small board trips output protection the moment the light turns on); thought you’d weld the copper on directly (1mm copper plate is a bit thick, won’t take a weld); CNC and Fluke too, the weak student has the most tools; will careless welding hurt the discharge cap’s life (liked by the creator).

One machine, many uses, formidable performance! H1 handheld spot welder unboxing + welding test — you'll want one after watching! #AWithZSpotWelder #diy #ElectronicsHobbyist #GeekMods #MoneySaver

A speed-adjustable mini fan made from an empty 36g Luofu glue stick. The old method melts through the screw post inside the stick; a heated knife cuts two opposite notches in the head of the stick; a heated wire opens a big hole in the cap, then flip it and cut two more notches. Take two 16340 Li-ion cells (UltraFire marked 3200mAh) and the U3 Pro-edition spot welder gifted by AWithZ official, power on and set auto mode (the body also doubles as a power bank); series: place one + up and one − up, lay the nickel strip on and spot weld — very solid; flip over, wrap a short piece of nickel strip around the ends of two wires and weld them to the other face of the cells, red + black −. Without a spot welder you can use a conductive plate and wrap the wires with electrical tape. Fan motor + switch, plus a low-value potentiometer for speed: bend one pin of the potentiometer to the motor’s other wire; red wire to the switch, black wire to the potentiometer’s middle pin; hot glue holds the wires; fold the side-by-side pack upright into the stick, drop in the motor, cap it; hot glue holds the potentiometer and switch, tape wraps the wires, fit the blades. Done, the potentiometer sets the speed; to charge you take it apart — only one cell at a time. Top-liked comment (45) warns ‘who taught you to spot weld like that? one cell going off because you didn’t press down and you’ll behave’ (creator liked it); suggestions: just wire it with a soldering iron, add a TP4056 charger, use a test tube for the shell, swap in a hobby-grade motor.

Welds 0.15MM nickel-plated with ease! H1 handheld spot welder — precise, stable, no cold welds! #AWithZSpotWelder #WeldingEquipment #diy #GoodFinds #HighPerformanceTools

Light and portable, a compact home welding wonder! H1 handheld dual-pulse spot welder makes everyday welding more efficient! #AWithZSpotWelder #WeldingEquipment #diy #GoodFinds #HighPerformanceTools

[¥70 crazy mod] Home-made car jump starter! 500,000-cycle life, military-grade alloy body, 10× more durable than an ordinary welder! #AWithZSpotWelder #21700PowerCells #AutoRepairBlackTech #MoneySaver #GeekMods

U3 Pro spot welder welding button cells: small body, big energy! #AWithZSpotWelder #WeldingEquipment #ElectronicsHobbyist #diy #HighPerformanceTools

Even, mark-free welds, flawless quality! A professional supercapacitor spot welder for precision welding! #AWithZSpotWelder #GeekMods #WeldingEquipment #CapacitorBlackTech #ElectronicsHobbyist

Powerful spot welding, thin or thick! Powerful spot welding, thin or thick! Professional quality, handles all kinds of metalworking with ease! #AWithZSpotWelder #GeekMods #MustHaveForVeterans #WeldingEquipment #DIYGuru

[Ready out of the box] Full set of accessories! AWithZ P30C spot welder — professional welding in one step! #AWithZSpotWelder #GeekMods #MustHaveForVeterans #WeldingEquipment #DIYGuru

[Copper welding] One touch and it's welded, strength guaranteed! Industrial-grade spot welder, precise and stable, less to worry about! AWithZ P30C spot welder — stable output, no flops! #AWithZSpotWelder #DIYGuru #CapacitorBlackTech #GeekMods

[P-series buying guide] P20B / P30C / P60F — which to choose? The no-brainer rule: for 0.6mm pick the P20B, 0.8MM the P30C, 1.0MM the P60F! #AWithZSpotWelder #DIYGuru #GeekMods #CapacitorBlackTech #MustHaveForVeterans

Reuse button cells! The U3 Pro spot welder brings button cells back to life — eco-friendly and money-saving, small body, big energy! #AWithZSpotWelder #LiIonPackAssembly #HardwareTools #Welding #Tools

HD2 handheld dual-pulse spot welder · HD digital display. HD2 handheld dual-pulse spot welder · HD digital display — welds as fine as silk, control down to the millimeter Grade-A cells · 0.25mm ultra-thin welding · copper sheet welds with ease · handheld and portable · precise digital display #AWithZSpotWelder #WeldingEquipment #ElectronicsHobbyist #diy #HighPerformanceTools

[Operation guide] HD2 handheld dual-pulse spot welder (HD digital-display version) — spot welds in a second, precise and error-free! Beginners get professional results too~ welds 0,25MM #AWithZSpotWelder #WeldingEquipment #ElectronicsHobbyist #diy #HighPerformanceTools

A friend brought over a faulty pesticide sprayer; a check showed the battery had been drained dead, so a new Li-ion pack is made. Parts: battery box, connecting nickel strip, BMS, 18650 cells — HIGHSTAR ISR18650-2500 cells, 2500mAh; measured 4.2V, internal resistance 15.7/16, consistency is decent. The welder is an AWithZ U3 (nameplate: spot-weld output voltage 4.2V MAX, output current 650A MAX, Type-C input 5V/2.1A, USB output 5V/2.4A, battery 11000mAh 3.7V 40.7Wh, manufacturer Shenzhen Juequi Technology), only palm-sized, 11000mAh battery, 2-inch HD screen, 80 adjustable gears, manual trigger button; not just a spot welder but also a power bank. Weld strength test: the nickel strip tore and the weld still didn’t let go. The pack is 12V, three in series, three in parallel; the BMS is soldered to the cells in order; 4.2V, 8.4V and 12.6V all check out, so the welds are fine; the pack’s positive and negative leads are soldered to the terminals on the housing; the housing is sealed with glue; fitted, switch on, water comes out — perfect repair. Comments: it’s a sprayer, not a spray (liked by the creator); a 3S2P with a BMS gave no output even after swapping several boards; 9 cells isn’t enough; swap the original lead-acid for Li-ion and one charge on the lead-acid charger and “uh-oh”.