AWithZ HF7
First handheld supercapacitor welder
Supercapacitor in a pen: 1060A peak, 1.5M cycles, 10-second recharge, welds 0.3mm nickel/copper — the most capable handheld in its class.
Before any lithium battery work, read the AWithZ Safety & Usage Guidelines ›







What people build with HF7
Real works from the WeldWorld creator community
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Highlights






Only brand-new supercapacitors
No refurbished or imported salvaged capacitors — brand-new automotive-grade supercapacitors run at rated voltage for double safety and stability.

Low-ESR · 1060A · 1.5M cycles
A full-electrode low-ESR design unleashes stronger welding current; an in-house dynamic algorithm handles auto-stop charging, health monitoring and balancing — equivalent to 1.5M-cycle life.

Powerful dual-pulse
The first pulse breaks the oxide layer, the second precisely controls temperature and melt; dual-pulse scheduling balances weld strength and quality.

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.

Weldable thickness (mm, MAX)
Lab maximums; results vary by material and environment.See all nine spec groups ›
Use cases
Compatible accessories
Related models



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