SEQURE SQ-SW3 2500A Capacitor Energy Storage Spot Welder for 18650 and 21700 Batteries

* SWP25 US Plug (Split Handle)

* SWP25 EU Plug (Split Handle)

* WP30 US Plug (Integrated Handle)

* WP30 EU Plug (Integrated Handle)

* SWP25 WP30 US Plug (Split & Integrated Handles)

* SWP25 WP30 EU Plug (Split & Integrated Handles)

Powerful 2500A Spot Welding Performance

* Equipped with high-quality low-resistance MOSFET, the SEQURE SQ-SW3 delivers up to 2500A welding current, providing strong and stable welding performance for nickel-plated sheets, pure nickel strips, and copper strips used in DIY lithium battery pack assembly.

Supports Nickel & Copper Strip Welding

* Designed for battery DIY enthusiasts and professionals, the SQ-SW3 supports welding various materials including nickel strips and copper sheets, making it suitable for assembling 18650, 21700, and other lithium battery packs.

High-Efficiency Energy Storage System

* Built with a super farad energy storage capacitor, the SQ-SW3 provides powerful energy output and stable continuous welding performance. Supporting multiple power supply options, including fast charging, slow charging, and external battery input, it quickly replenishes energy for efficient and uninterrupted spot welding.

Durable Aluminum Alloy Body with Efficient Cooling

* The all-metal aluminum shell offers excellent durability and rapid heat dissipation. Combined with a long-life capacitor system, it ensures safer operation and reliable performance during extended spot welding tasks.

Dual Trigger Modes & Smart Functions

* Supports both automatic and manual trigger modes. Built-in functions include welding point counting, temperature monitoring, LED lighting, firmware upgrades, and other intelligent features for convenient operation.

HD Color LCD Display with Multi-Language Support

* Features a high-definition color LCD screen with an intuitive interface. Supports multiple languages including English, Chinese, and Russian for easier operation worldwide.

Durable Dual Welding Pins Design

* Made from aluminum oxide copper material, the welding pins offer high hardness, excellent conductivity, and long service life. The copper tips resist melting and sticking to nickel strips during welding. Dual-head design improves efficiency and usability.

Two Professional Welding Handle Options

* The SQ-SW3 offers two handle designs: the flexible SWP25 split handle and the compact WP30 integrated handle. Both are built with 25mm² ultra-soft multi-strand nickel-plated copper wire, featuring low resistance, excellent conductivity, oxidation resistance, high current carrying capacity, and long-lasting durability for stable and efficient spot welding.

Compact Design for DIY & Professional Use

* With its compact structure and lightweight design, the SQ-SW3 is easy to store and transport, making it ideal for home workshops, electronics repair, and small-scale battery assembly projects.

* Model: SEQURE SQ-SW3 Capacitor Energy Storage Spot Welder

* Display: 1.8-Inch Color High-Definition LCD

* Trigger Mode: Automatic Mode/Manual Mode

* Output Voltage: 5.6V (Max)

* Output Current: 2500A (Max)

* Nickel-Plated Strip Thickness: ≤0.5mm

* Pure Nickel Strip Thickness: ≤0.3mm

* Copper Sheet Thickness: ≤0.2mm

* Power Input Methods: AC, DC, Fast Charging, Slow Charging, External Battery Input

* XT60IE-M Port: Charging (5.6V 15A Max)

* USB Type-C Port: Firmware Upgrade & Charging Input (PD3.0, DC 25V Max)

* DC 5525 Port: Charging Input (DC 25V Max, 6S Battery Max)

* Foot Switch Port: 3.5mm AUX (4-Pin Foot Switch Support)

* Product Dimensions: 223 x 133 x 68mm

* Product Weight: About 1565g

* SQ-SW3 spot welder x 1

* 5.6V 15A charger x 1

* 19V 2A charger x 1

* USB cable x 1

* 18650 battery fixture x 1

* 0.1*8mm pure nickel strip (5m) x 1

* File x 1

* SWP25 split handle x 2

* Foot pedal x 1

* M3*2 screw x 2

* 1.5mm hexagon screwdriver x 1

* M6*8 screw x 4

* 4.0mm cross screwdriver x 1

* 10mm hexagon open-end wrench x 2

* SQ-SW3 spot welder x 1

* 5.6V 15A charger x 1

* 19V 2A charger x 1

* USB cable x 1

* 18650 battery fixture x 1

* 0.1*8mm pure nickel strip (5m) x 1

* File x 1

* WP30 integrated handle x 1

* 500mm 25mm² copper wire x 2

* 3*35mm welding pin x 4

* Audio cable x 1

* 2.0mm hexagon screwdriver x 1

* M6*8 screw x 6

* 4.0mm cross screwdriver x 1

* 10mm hexagon open wrench x 2

* SQ-SW3 spot welder x 1

* 5.6V 15A charger x 1

* 19V 2A charger x 1

* USB cable x 1

* 18650 battery fixture x 1

* 0.1*8mm pure nickel strip (5m) x 1

* File x 1

* SWP25 split handle x 2

* Foot pedal x 1

* M3*2 screw x 2

* 1.5mm hexagon screwdriver x 1

* M6*8 screw x 6

* 4.0mm cross screwdriver x 1

* 10mm hexagon open wrench x 2

* WP30 integrated handle x 1

* 500mm 25mm² copper wire x 2

* 3*35mm welding pin x 4

* Audio cable x 1

* 2.0mm hexagon screwdriver x 1

SWP25 US Plug, SWP25 EU Plug

* Package weight: 3.5kg

WP30 US Plug, WP30 EU Plug

* Package weight: 3.5kg

SWP25 WP30 US Plug, SWP25 WP30 EU Plug

* Package weight: 4.5kg