78 × 18650 cells welded. Arms are sore, heart is full
The customer's old case is only 130×370, so I measured three times before I dared to cut anything. 13S6P, 0.2 nickel-plated strip, UF20B at gear 38 — watching the welds light up one by one is seriously addictive.
Halfway through, the welding pens touched and blew a hole right through one cell. Swapped it out and started over — newbies, remember this: position first, then press. Don't rush.
BMS goes in tomorrow, it goes back to the customer the day after. Will report back.
|
{ if (d < -40 && big < 1) big++; if (d > 40 && big > 0) big-- })($event.changedTouches[0].clientX - tx)">
Brushless motor turned monster fan, part 2 done. Installed + tested in one go, the sound takes off on the spot🔥
The spot welder locks the battery in solid — full throttle, spinning like mad, not budging an inch!
This isn't a fan, it's a 'turbojet engine' strapped to your body…
Take it out in summer — it works better than bringing an AC💨
#MonsterFan #BrushlessMotor #AWithZSpotWelder #UF20BSpotWelder #TechShenanigans
DIY monster fan | Hardcore conversion of a drone brushless motor into a monster fan🔥 Step-by-step tutorial, a spot welder builds super-strong airflow💨, enough wind to take off — the summer cooling wonder!
#AWithZSpotWelder #UF20BSpotWelder #MonsterFan #DroneMotorMod #diy
Avoid the pitfalls in 1 minute! Beginners building a pack — 3 steps solve the core problems: set the series count ➜ set the parallel count ➜ lock in the BMS. With the AWithZ H2-2026 handheld, even a newbie can weld a finished-grade pack and get safely to the end🚗 #AWithZSpotWelder #BatteryMaking #DIY #BeginnerGuide #PitfallGuide
Industry first, major launch! The all-new supercapacitor handheld HF7 spot welder is here! Not every handheld deserves to be called professional. Li-ion pack assembly, tool re-celling, model power mods — all done one-handed. Welds solid, lasts long, tunes precisely, no compromise. Stop settling — get it right in one step. Get in on the launch, keep watching👇
#AWithZSpotWelder #HF7 #HandheldSpotWelder #CapacitorSpotWelder
AWithZ UF20B spot welder | Solid welds on 32140, copper stays put. Still struggling with copper welds that won't hold? The AWithZ UF20B supercapacitor spot welder — output steady as a rock, not fussy about materials. Smart voltage regulation, no more cold welds, consistent weld spots. Punches through 0.15mm copper with ease; tear the copper strip and the weld stays. Hand-built Li-ion packs, done in one go. #32140Cells #AWithZSpotWelder #UF20B #Battery
UK1 cordless portable spot welder, 9000W raging output! 1380A instant penetration. Click the knob, press the pen tip lightly, and the weld forms in an instant⚡
✅0.3mm nickel-plated / 0.15mm pure nickel / 0.1mm copper, all handled with ease
✅Dual grade-A power cells for steady runtime and long life
✅Smart spot-welding pen — even beginners weld like seasoned pros
DIY battery packs, repairs and mods, small-batch production — one unit does it all🛠️
#AWithZSpotWelder #CordlessSpotWelding #HardwareTools #DIYWonderTool
Diangongbang’s 13-second sales pitch (same script as w113): a handheld rechargeable spot welder that welds nickel strip onto batteries / stainless steel very solidly, welding power and time adjustable, charges from a phone charger; comment: an H1 owner says the H2 upgrades the screen and features, more professional
No need to ask for help or use a soldering iron for battery welding; a handheld rechargeable spot welder that welds nickel strip onto batteries and stainless steel, very solid; welding power and welding time both adjustable; charges from a phone charger, really convenient to use. Screen shows 4ms, T 21℃. Comment: thumbs up for the AWithZ handheld welder, bought the H1 before, this H2 upgrades the screen and features, looks more premium and professional.
Lefeng’s UF20B (No. 6 pen) gear test at 10/15/20/25 (preheat untouched): on 0.15 nickel-plated steel strip, gear 10 peels off leaving two holes, 15 takes effort, 20 tears the strip, 25 is completely OK and hurts the hand to peel — tearing achieved, no point going higher; answering a fan’s ‘0.15 copper + 0.2 nickel-plated won’t weld’ — first ask whether there is a nickel base layer, doesn’t recommend copper straight on with this unit (copper is hard), stacked-copper and non-upgraded-pen comparisons to follow; the test only speaks for the unit in his shop window
Opens: no addiction to fishing, but addicted to spot welding — a few days without welding and the hands itch. Today testing gears 10/15/20/25; the machine is an AWithZ UF20B with the upgraded No. 6 welding pen; last time was gears 1–5, this time from 10 up in steps of 5, preheat and the rest untouched, only the gear changes, two welds per gear. Gear 10: the 0.15 nickel-plated steel strip peels off, leaving two holes, two holes in the nickel strip too; gear 15: takes some effort, felt it in the hand muscles; gear 20: can already tear the nickel-plated steel strip; gear 25: completely OK, hand hurts from peeling, switch hands; the strip-tearing result is achieved, no need to go higher. A fan says 0.15 copper on 0.2 nickel-plated steel strip won’t weld — I asked whether there was a nickel base layer; with this unit I don’t recommend copper straight on, because copper is fairly hard; a stacked-copper test will be added to the series; the test only speaks for the AWithZ UF20B in my shop window, ones bought elsewhere perform differently, don’t flame me; this is the upgraded No. 6 pen, without the upgrade the result differs too, a non-upgraded-pen test to follow. 37 comments: quit food delivery and go work at a battery factory; why not get a better welder, it’s painful to watch (I also have an AWithZ P60F, it’s enough); can it weld EVE C40 (with a nickel adapter it can); will it work on Gotion copper-terminal 20A (probably not); is the low/high gear difference current or time; what current at the tip on gear 10; 6045 without stacked copper, straight 0.15 nickel-plated OK?; the No. 6 cable’s current doesn’t match a two-capacitor home-built unit.
Lefeng’s UF20B (No. 6 pen) gears 1–5 series test: preheat 0 / interval 0 / 1ms, 0.1–0.12 nickel-plated steel strip on a Jiashikai negative — gear 1 doesn’t stick at all, 2 sticks a little, 3 a bit tighter but still peels off, 4 a bit hard but still peels, 5 feels like it might stick a little; comments: use gears 10–12 for 21700; a welder costs a few hundred, just buy a new battery (creator: if you want cell performance, there’s no saving money)
Welder series: AWithZ UF20B with the upgraded No. 6 welding pen, trying gears 1–5; preheat 0, interval 0, (trigger) 1 millisecond; two rolls of nickel-plated steel strip, no idea which is 0.1 and which is 0.12, never mind; welding the 0.1 or 0.12 nickel-plated steel strip onto a Jiashikai negative. Gear 1 result: won’t hold; up a gear, gear 2: gear 1 didn’t stick at all, gear 2 sticks a little; gear 3: sticks a bit tighter again but still peels off; gear 4: a bit hard to peel but still comes off; today up to gear 5: this is the upgraded No. 6 pen, 0.1–0.12 thickness on a Jiashikai negative, gear 5 feels like it might stick a little; that’s the show. 11 comments: wanted to hand-build to save money, good grief, a welder costs a few hundred, just buy a new one (creator: if you want cell performance there’s really no saving money); gears 10–12 for 21700; try a 0.3; either go 4 capacitors or 133 mains-frequency; go do deliveries instead of this (no deliveries to do); is 36V at the port normal on a 48V pack when switched off.
Stainless steel spatula 'broke a bone' — just toss it? The AWithZ handheld H1 spot welder gives it a 'seamless bone-setting'! Got a small item that needs rescuing? Tell me in the comments and I'll weld it next time!
#RepairTips #StainlessSteelWelding #KitchenBlackTech #CraftMaster #AWithZSpotWelder
We only use essential cookies, plus one performance measurement you can turn off. Cookie Policy
EssentialSign-in, language, theme and similar; the site cannot work properly without them
Always on
FunctionalPlayback history and filter preferences, stored only in your browser
Always on
PerformanceAnonymously reports page load times so we can speed up the site; not linked to your account or shared with third parties
Official stores
Go to our official stores on third-party platforms
AWithZ · Product feedback & suggestions
Ran into a problem? Have an idea for improvement? Tell us. We read every piece of feedback carefully. Valid feedback earns points, redeemable for accessories / coupons.
Thanks for your feedback!
We'll review it within 1–5 business days. If you left an email, valid feedback earns points redeemable for accessories / coupons. If we need to follow up, we'll contact you at the email you left.
We'll review it and send the result to your inbox. Abusive reports may be restricted.
Before you browse
WeldWorld is an open platform for user sharing; content does not represent official advice.
Improper battery handling can cause fire, explosion, chemical burns and serious injury. Read the full AWithZ Safety & Usage Guidelines before any lithium battery assembly, spot welding or testing, and before using the community.
Community content is personal experience, not verified by AWithZ; where it conflicts with official documents, the official documents prevail.
Never apply someone else's settings directly; always start at a low level and test on scrap.
Before copying any procedure, go through the self-check list in Part 3 of the guidelines.