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High-Current Handheld Spot Welder with Automatic Trigger for 18650/21700 Battery Packs
High-Current Handheld Spot Welder with Automatic Trigger for 18650/21700 Battery Packs
Regular price
$17.99 USD
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$17.99 USD
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Product Description
Feature Highlights:
- High Carrying Capacity: Our advanced spot welding pen features an imported MOS tube capable of carrying 550A of current, offering exceptional welding power. Its integrated design allows for easy connection to a battery, enabling faster and more efficient welding operations.
- Removable Copper Pin: Designed with a removable copper pin, this handheld spot welder enhances both expandability and maintainability, ensuring long-lasting performance.
- 99-Speed Adjustment: Benefit from 99-speed infinite adjustment for precise control, catering to diverse welding needs. Its design facilitates precise welding, making it ideal for varied tasks.
- Trigger Button: The included trigger button lets you complete welds with a single press, perfect for one-handed operation, enhancing convenience and efficiency.
- LED Indicator: A built-in LED indicator displays the working status, providing assurance and real-time details on current operation. Compatible with 18650 and 21700 battery packs, this versatile and lightweight unit is suitable for electricians, metal welding professionals, and construction fields.
Specifications:
- Certification: None
- Origin: Mainland China
- Model Number: Spot Welding Machine
- Max. Welding Thickness: 0.1mm
- Dimensions: 170 x 25mm
- Weight: 150g
- Usage: Spot welding
- Wire Length: 350mm
- Wire Specification: 12AWG silicone wire
- Power Interface: Copper lug / EC5 (optional)
- Operating Voltage: 12V-16.8V
- Spot Welding Current: 80A-150A
- Power Module: Imported 550A MOS tube
- Case Material: High temperature resistant nylon
- Spot Welding Material: 0.1mm nickel-plated tape
- Welding Needle Specification: 3 x 1.5 x 40mm professional alumina copper welding needle
- Copper Needle Replaceable: Yes
- Material: ABS + metal
Package Included:
- 1 x Welding Machine Needle (Choose interface option)
Key Points of Use:
- We recommend a 12V, 20AH-60AH lead-acid battery, or a high-rate 3-string or 4-string lithium battery pack as input power (must perform well, enough to start a car; voltage range: 12V-16.8V).
- Ensure firm connections and avoid extending wires randomly. Start with low power for spot welding and gradually increase to avoid excessive current impacting MOS tube performance. Do not reverse-connect input electrodes or exceed specified voltage range.
- For best results, weld 0.1mm nickel-plated steel strips. Achieving 0.2mm thickness is possible with double welding. Avoid welding pure nickel, copper, or aluminum.
Note: Due to different monitors and lighting, actual item color might slightly vary from the pictures. Please allow a 1-2cm deviation due to manual measurement.






