AWithZ U3
Tuning combos, auto/manual
Card-size welder: tuning combos, auto/manual, 2" color screen, 5000/7500/11000mAh, welds 0.35mm. Same as U3 Pro minus the smart-pen port.
Before any lithium battery work, read the AWithZ Safety & Usage Guidelines ›
What people build with U3
Real works from the WeldWorld creator community
No projects yet.
Highlights
Only brand-new Grade-A cells
No high-drain, risky B/C-grade cells — Grade-A cells are safe, durable and hold their charge.
Thousands of settings · six core parameters
Mode (manual/auto) · level · preheat · interval · trigger time · repeat — six dimensions combine into tens of thousands of output profiles, so thin sheets don't burn through and thick stock doesn't cold-weld.
2-inch full-color LCD
Auto / manual modes.
8-layer safety protection
Quality cells/capacitors · shock · voltage · short-circuit · low-temp · high-temp · overcharge · over-discharge protection; a built-in safety chip, thermal sensor and safety algorithm give hardware-plus-software protection.
Weldable thickness (mm, MAX)
Lab maximums; results vary by material and environment.See all nine spec groups ›
Use cases
Compatible accessories
Related models
Share your experience
Tell us about issues with your U3, accessories you want, or feature ideas. Approved feedback earns an accessory coupon.