UK3 Specs
Power-battery welding, honest thickness ratings · Nine standardized spec groups; "—" means not officially published.
Weldable thickness (mm, lab max)
Nickel-plated steel strip0.3
Pure nickel strip0.3
Copper strip0.15
Stainless strip0.3
Iron sheet0.3
1. Core welding performance
Peak output current1650A
Energy-storage designDual Grade-A cells in series, 10000mAh (Li-polymer)
TechnologyDual-pulse (built-in cell)
Welding levels99 levels
2. Max weldable thickness by material (mm)
Nickel-plated steel strip0.3 mm
Pure nickel strip0.3 mm
Copper strip0.15 mm
Stainless strip0.3 mm
Iron sheet0.3 mm
3. Supported cells
Cylindrical Li-ion18650 / 21700
Cylindrical LiFePO4—
Prismatic / pouchPouch / phone cells
4. Recommended use cases
EnvironmentPortable / indoor
Usage intensityEveryday repair
Typical usesCylindrical cell pack assembly · Coin-cell welding · Phone & laptop cell replacement · Hardware & metal joining
5. Who it's for
Who it's forBattery DIY enthusiasts, field repair techs, beginners and hobbyists
6. Endurance & protection
Max welds per charge~4000 welds
Thermal protection threshold—
Protection list—
7. Pen & pin setup
Pen formSeparate welding pen
Pin material & spec—
8. Hardware specs
Body structureSeparate host + pen
Housing materialPlastic, black
Weight~300g
Dimensions~100.5×158×48mm
ScreenHD TFT + knob
External foot switchSupport
9. Charging & electrical
InputType-C 5V/2.4A(MAX)
Output voltage8.4V
Output current1650A
Output power9000W
Fast charge—
Data from the official product pages and manuals; results vary with material batch and environment.
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