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DIY power bank? The U3Pro welds quickly and firmly.
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Bill of materials
Welder, accessories, consumables and parts used in this build; quantities and specs are editable Download BOMAWithZ official
Description
For Mini Portable Spot Welder,Choose AWithZ ! AWithZ U3pro enhanced spot welder ① Only high quality A cells are used ② 90 Gears Adjustable,Auto/Manual spot welding mode ③ Spot welder with Manual contol pen ④ Colorful Large Screen ⑤ Weldable 0.35mm(MAX） ⑥ Weldable material: nickel plating \ pure nickel \ steel \ iron \ copper, etc ⑦ One machine dual-use, spot welding machine + charging treasure ⑧Widely Used,Suitable for cylindrical batteries such as 18650/26650/36650, mobile phone batteries, and electronic devices that require batteries. ◈ U3pro Product Links：https://a.co/d/7jffHGC AWith
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.
