Compare models
1. Core welding performance
1650APeak output current
1380APeak output current
650A(详情页)/ 880A(目录表,待核)Peak output current
Dual Grade-A cells in series, 10000mAh (Li-polymer)Energy-storage design
Dual Grade-A cells in series, 5000mAhEnergy-storage design
Single Grade-A cell, 5000 / 7500 / 11000mAhEnergy-storage design
Dual-pulse (built-in cell)Technology
Dual-pulse (built-in cell)Technology
Dual-pulse (built-in cell)Technology
99 levelsWelding levels
1–100Welding levels
80 档(1.0–9.0)Welding levels
2. Max weldable thickness by material (mm)
0.3 mmNickel-plated steel strip
0.3 mmNickel-plated steel strip
0.3 mmNickel-plated steel strip
0.3 mmPure nickel strip
0.2 mmPure nickel strip
0.2 mmPure nickel strip
0.15 mmCopper strip
0.1 mmCopper strip
0.1 mmCopper strip
0.3 mmStainless strip
0.3 mmStainless strip
0.3 mmStainless strip
0.3 mmIron sheet
0.3 mmIron sheet
0.3 mmIron sheet
3. Supported cells
18650 / 21700Cylindrical Li-ion
18650 / 21700Cylindrical Li-ion
18650 / 21700Cylindrical Li-ion
—Cylindrical LiFePO4
—Cylindrical LiFePO4
—Cylindrical LiFePO4
Pouch / phone cellsPrismatic / pouch
Pouch / phone cellsPrismatic / pouch
Pouch / phone cellsPrismatic / pouch
4. Recommended use cases
Portable / indoorEnvironment
Portable / indoorEnvironment
Portable / indoorEnvironment
Everyday repairUsage intensity
Everyday repairUsage intensity
Everyday repairUsage intensity
Cylindrical cell pack assembly · Coin-cell welding · Phone & laptop cell replacement · Hardware & metal joiningTypical uses
Cylindrical cell pack assembly · Coin-cell welding · Phone & laptop cell replacement · Hardware & metal joiningTypical uses
Cylindrical cell pack assembly · DIY power bank / portable power · Coin-cell welding · Phone & laptop cell replacementTypical uses
5. Who it's for
Battery DIY enthusiasts, field repair techs, beginners and hobbyistsWho it's for
Battery DIY enthusiasts, field repair techs, beginners and hobbyistsWho it's for
Battery DIY enthusiasts, field repair techs, beginners and hobbyistsWho it's for
6. Endurance & protection
~4000 weldsMax welds per charge
1500–2000 焊点Max welds per charge
—Max welds per charge
—Thermal protection threshold
—Thermal protection threshold
—Thermal protection threshold
—Protection list
—Protection list
—Protection list
7. Pen & pin setup
Separate welding penPen form
Separate welding penPen form
Separate welding penPen form
—Pin material & spec
—Pin material & spec
—Pin material & spec
8. Hardware specs
Separate host + penBody structure
Separate host + penBody structure
Separate host + penBody structure
Plastic, blackHousing material
—Housing material
—Housing material
~300g (catalog lists 465g with accessories, to be verified)Weight
约 370gWeight
—Weight
~100.5×158×48mmDimensions
~100.5×158×48mmDimensions
约 159×92×25mmDimensions
HD TFT + knobScreen
HD digital display + knobScreen
2.0-inch 320×240 full colorScreen
SupportExternal foot switch
SupportExternal foot switch
—External foot switch
9. Charging & electrical
Type-C 5V/2.4A(MAX)Input
Type-C 5V/2A(MAX)Input
Type-C 5V/2.1A(MAX)Input
8.4VOutput voltage
8.4VOutput voltage
4.2VOutput voltage
1650AOutput current
1380AOutput current
650A(详情页)/ 880A(目录表,待核)Output current
9000WOutput power
9000WOutput power
—Output power
—Fast charge
—Fast charge
—Fast charge
"—" means not published or pending; thickness is the official lab maximum. The nine spec groups match the product Specs tab.