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Rugged aluminium-alloy box with display, welding pens, foot pedal and accessories

BFKK

BFKK Capacitor Spot Welder 10.5 kW 100240 V

SKU CH-RHZW-7KN4A

Capacitor spot welder delivers 10.5 kW pulses for 18650, 21700 and LiFePO4 pack assembly with automatic or foot-pedal triggering

  • 5 kW pulse power with 2000 A output for strong battery welds
  • 100-240 V AC input charges capacitor in minutes for quick start
  • Automatic and foot-pedal modes give flexible welding control
  • Welds 18650, 21700, 14500 and LiFePO4 cells with nickel strip
  • Handles copper to 0.15 mm, nickel to 0.25 mm, steel to 0.4 mm

10.5 kW Capacitor Spot Welder

The BFKK spot welder delivers up to 10.5 kW pulse power with a 2000 A output at 6 V for battery pack assembly. It accepts 100240 V AC input and charges its internal capacitor in a few minutes, signalling readiness on the display. Automatic and foot pedal modes give both hands-free speed and precise trigger control. The unit suits hobbyists and small workshops building 18650, 14500, 21700 or LiFePO4 packs.

Capacity and material limits

The welder handles copper sheet up to 0.15 mm, pure nickel up to 0.25 mm and steel, iron or nickel-plated sheet up to 0.4 mm when power settings are matched to the material. It is designed for thin-tab battery connections rather than heavy structural welding. Thicker sections or high-volume production runs will exceed the practical duty cycle of the capacitor bank.

Aluminium alloy housing and kit

A rugged aluminium-alloy enclosure with smooth edges resists wear and aids heat dissipation during repeated pulses. Insulated welding pens carry replaceable copper tips for consistent current delivery. The package includes the SK-10P unit, AC power cord, foot pedal, pen pair, nickel strip roll, battery holders, nickel-plated plates, spare tips, fine-grit file and user manual for immediate use.

Highlights

  • 5 kW pulse power with 2000 A output for strong battery welds
  • 100-240 V AC input charges capacitor in minutes for quick start
  • Automatic and foot-pedal modes give flexible welding control
  • Welds 18650, 21700, 14500 and LiFePO4 cells with nickel strip
  • Handles copper to 0.15 mm, nickel to 0.25 mm, steel to 0.4 mm

Specifications

No published specifications for this item yet.

Questions about this item

Will the 100240 V AC input work with my existing workshop circuit without rewiring?

Yes, the welder accepts 100240 V AC so it plugs into standard household or light-industrial outlets without modification.

How do I know the internal capacitor is charged and the welder is ready to fire?

The display indicates when charging is complete; wait for that ready signal before starting any weld.

Does the box include the nickel strip and spare copper tips, or must I order them separately?

The kit ships with a nickel strip roll, spare welding tips, welding pens, foot pedal, battery holders, nickel-plated plates, a fine-grit file, the AC power cord and the user manual.

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