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Everyone says copper won't weld? Brute strength works miracles! AWithZ UF20B supercapacitor spot welder — copper / pure nickel, all in, unedited footage; how would you score these welds

AWithZ Official · OfficialFollow
Adaptive · 720 / 480Playback info 01:43
Official post
PlatformDouyin · AWithZ Official · Douyin
ModelUF20B
TypeProducts & reviews
Resolution720x1280
Published2026-04-24 16:24
Released 2026-04-24Official

Bill of materials

Welder, accessories, consumables and parts used in this build; quantities and specs are editable Download BOM
AWithZ official
UF20B spot welder
×
¥569.9–599.9
WP120 Smart Pen (8 AWG)
×
¥39.9
Nickel-plated steel strip
×
from ¥5.9

Description

Everyone says copper won't weld? Brute strength works miracles! AWithZ UF20B supercapacitor spot welder — copper / pure nickel, all in, unedited footage; how would you score these welds?

Li-ion safety

DIY lithium packs can catch fire: check cells for shorts before welding, always add a BMS, never skip insulation and fusing on high-current builds.

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