Lithium-Ion Stud Welder for Energy-Storage Charging Duct Insulation Studs—Portable, Dual-Gun, Marine-Grade, Industrial-Grade
Standard Model
Input Voltage: 220V–240V
Input Power: 350W
Charging Voltage: 40–90V
Capacitor Voltage: 124,000 μF
Dimensions: 375 × 214 × 250 mm
Weight: Approx. 10 kg
Features: Rapid charging and welding; uses a 124,000 μF capacitor compliant with national standards; produces strong, aesthetically pleasing welds

Lithium-Ion Model
Input Voltage: DC 84V
Input Power: 350W
Charging Voltage: 40–90V
Capacitor Voltage: —
Dimensions: 375 × 214 × 250 mm
Weight: Approx. 8 kg
Features: Can be used without a power source; 1 hour of charging provides 3 days of welding; high-quality Grade A lithium-ion cells