UF20B Specs
10.5kW supercapacitor power, welds 0.4mm and copper · Nine standardized spec groups; "—" means not officially published.
Weldable thickness (mm, lab max)
Nickel-plated steel strip0.4
Pure nickel strip0.3
Copper strip0.2
Stainless strip0.4
1. Core welding performance
Peak output current1750A
Energy-storage designNew supercapacitor 2×1000F (active balancing, 500k cycles)
TechnologySupercapacitor + dual-pulse
Welding levels01–99
2. Max weldable thickness by material (mm)
Nickel-plated steel strip0.4 mm
Pure nickel strip0.3 mm
Copper strip0.2 mm
Stainless strip0.4 mm
3. Supported cells
Cylindrical Li-ion18650 / 21700
Cylindrical LiFePO432140
Prismatic / pouch—
4. Recommended use cases
EnvironmentPortable / indoor
Usage intensityBatch assembly / pro repair
Typical usesPower-tool battery repair · Home-appliance repair · Cylindrical cell pack assembly · Coin-cell welding
5. Who it's for
Who it's forRepair shops, small assembly workshops and energy-cell processors
6. Endurance & protection
Max welds per charge—
Thermal protection threshold—
Protection list—
7. Pen & pin setup
Pen formSeparate welding pen
Pin material & spec—
8. Hardware specs
Body structureSeparate host + pen
Housing materialAluminum + plastic
Weight~1.25kg
Dimensions~181×95×80mm
ScreenColor screen
External foot switchSupport
9. Charging & electrical
Input100–240V 50–60Hz
Output voltage6V
Output current1750A
Output power10.5kW
Fast charge15A high current, 40-second full charge/recharge
Data from the official product pages and manuals; results vary with material batch and environment.
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