A
AWithZ U3 Pro spot welder: outstanding performance that reinvents welding — efficient, precise, durable — opening a new era of smart welding. Come and see for yourself
AWithZ Official · OfficialFollow
Bill of materials
Welder, accessories, consumables and parts used in this build; quantities and specs are editable Download BOMAWithZ official
Third-party partsFrom the creator’s parts list, grouped by category; links to third-party stores
18650 battery packCell
×
Third-party
Description
AWithZ U3 Pro spot welder: outstanding performance that reinvents welding — efficient, precise, durable — opening a new era of smart welding. Come and see for yourself! #Compact #WeldingEquipment #ElectronicsHobbyist #ApplianceRepair #GoodFinds
Bill of materials
| 18650 battery pack |
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.
Ideas for you
02:14Brushless motor turned monster fan, part 2 done. Installed + tested in one go, the sound takes off on the spot🔥
02:06DIY 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
01:52Avoid 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🚗