High-Power 18650 DIY Lithium Battery Spot Welder Kit: Handheld, Compact, Portable, Dual-Pulse Spot Welder for Home Use

Name: 8000W High-Power Smart Dual-Pulse Spot Welder

Input: 100-240V

Output: 8.4V

Battery Type: Lithium-ion

Spot Welding Current: 1200A

Power: 8000W

Built-in Battery Capacity: 9600mAh

Maximum Output Voltage: 8.4V

Maximum Output Power: 8000W

Nickel Strip Thickness for Spot Welding: 0.1, 0.15, 0.2, 0.25, 0.3mm (Cannot weld copper/aluminum/gold/silver)

Machine Dimensions: 150×98×50(mm)

Spot Welding Pen Length: Approx. 47cm

Product Weight: Total weight 900g (including packaging and accessories); 700g (machine + welding pen + foot pedal)

Product Features:

- Rechargeable built-in battery with excellent performance and long service life

- Specifically designed for 18650 battery welding; capable of welding 0.1–0.3mm nickel strips

- Welding pen with excellent conductivity and low contact resistance

- ABS housing with anodized surface, durable and safe

- Compact and portable, easy to carry

Name: 5000W High-Power Spot Welder

Welding Pen: Detachable, made of pure copper

Power Supply: AC 100–240V, 50/60Hz

Operating Temperature: 10°C–65°C

Display Size: 0.28-inch LED display

Charging Voltage: 8.4V/500mA

Battery Capacity: 4000mAh/60C

Output Power: 5000W

Welding Thickness: 0.1–0.15 mm

Housing Material: ABS

Dimensions: 165 × 98 × 60 mm

Weight: 0.95 kg (including packaging)

Product Features

1. Features a detachable, replaceable welding tip imported from the U.S., ensuring neat and secure welds

2. Equipped with a high-rate lithium battery; ready to use right out of the box

3. High-definition digital display monitors remaining battery power

4. Current output is freely adjustable

5. Supports manual welding mode

6. Rechargeable

7. Low power consumption when powered off

Operating Instructions

1. Power On: Turn the knob; the indicator light will flash rapidly three times and then remain steady, indicating successful startup

2. Power Off: Turn the knob

3. Soldering: Place both soldering tips on the nickel plate and hold down the foot switch. After the red light flashes rapidly three times, a single current pulse is released, completing the soldering process

4. The knob adjusts the output current; the higher the setting, the higher the output

Precautions

- Avoid using the device while charging whenever possible, as this may damage the battery

- If the soldering tips become too hot, allow them to cool before use

- Charge the battery promptly when the voltage drops below 7.3V

- Use within an ambient temperature range of 10°C to 65°C; do not expose to water

- During welding, both tips must firmly contact the nickel plate and the battery; the welding tips must not touch each other

- Adjust the parameters based on the welding results until satisfactory

- Regularly remove carbon buildup from the soldering tips using a file or sandpaper

Comparison Notes:

- 8000W Model: Higher power output, maximum spot welding thickness of 0.3mm, and larger battery capacity; suitable for applications requiring high welding performance

- 5000W Model: Moderate power output, maximum spot welding thickness of 0.15mm; better suited for general-purpose welding and thin nickel sheets