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Reuse button cells! The U3 Pro spot welder brings button cells back to life — eco-friendly and money-saving, small body, big energy
AWithZ Official · OfficialFollow
Bill of materials
Welder, accessories, consumables and parts used in this build; quantities and specs are editable Download BOMAWithZ official
Description
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
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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