SEQURE SQ-SW3 Capacitor Energy Storage Spot Welder

Meet the SEQURE SQ-SW3a capacitor energy storage spot welder that doesn’t mess around. With a peak output of 2500A and support for fast, slow, and battery charging, this compact welder is built for serious DIYers, battery builders, and anyone who knows the thrill of fusing metal with precision.

Housed in a sleek all-metal aluminum body that doubles as a heat-dissipating exosuit, the SQ-SW3 is equipped with a 1.8″ HD color screen, dual-language support, and two trigger modes (auto or manual, depending on your mood or caffeine level).

Whether you’re spot welding nickel-plated strips, pure nickel up to 0.3mm thick, or copper sheets up to 0.2mm, this machine delivers power reliably without melting your pins into a sticky mess. And yes, the welding pins are aluminum oxide copperbecause durability shouldn’t be optional.

With both split (SWP25) and integrated (WP30) welding handles made from ultra-flexible, nickel-plated copper, you’ll enjoy low resistance, high conductivity, and the soft touch of a welder that cares.

Key Features:

Max Output Current: 2500A
Output Voltage: 5.6V max
Welding Material Support:
- Nickel Plating 0.5mm
- Pure Nickel 0.3mm
- Copper Sheet 0.2mm
Charging Methods: AC, DC, battery (XT60IE-M, Type-C, 5525)
Trigger Modes: Auto / Manual
HD LCD screen with English, Chinese, and Russian support
Dual welding handles: SWP25 split and WP30 integrated
Aluminum shell for better cooling and long lifespan
Multiple utility functions: LED light, temp detection, firmware upgrades, and more

Specifications:

Model: SQ-SW3
Display: 1.8″ Color LCD
Dimensions: 223 133 68 mm
Weight: 1565g

What’s in the Box:

SQ-SW3 Spot Welder 1
5.6V 15A Charger 1
19V 2A Charger 1
USB Cable 1
18650 Battery Fixture 1
0.18mm Pure Nickel (5m) 1
File 1
SWP25 Split Handle 2
Foot Pedal 1
M32 Screw 2
1.5mm Hexagon Screwdriver 1
M68 Screw 4
4.0mm Cross Screwdriver 1
10mm Hexagon Open-End Wrench 2

Please note: Included accessories may vary slightly depending on current supply. This unit does not ship with a UK plug, its a good idea to buy a plug adaptor

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