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Portable Handheld Spot Welder 11-Gear DIY Battery Welding Machine
Portable Handheld Spot Welder 11-Gear DIY Battery Welding Machine
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Portable Handheld Spot Welder – 11 Adjustable Gears | DIY Battery Welding Machine
Take your DIY battery building and electronics projects to the next level with this compact, powerful handheld spot welder. Designed for makers, hobbyists, and technicians alike, this energy-storage spot welder delivers up to 650A of output current through an intuitive 2-button interface — no external spot welding pen required. Whether you're at your workbench or on the go, this all-in-one device has you covered.
Why You'll Love It
- No Spot Welding Pen Needed: Built-in electrode tips mean you can weld straight out of the box — perfect for home workshops and field use.
- Wide Compatibility: Ideal for 18650, 26650, 36650, and other cylindrical lithium cells, mobile phone battery packs, and various electronic assemblies requiring battery connections.
- Simple 2-Button Operation: Clearly labeled buttons make switching between automatic and manual modes effortless — even for first-time users.
- 11 Adjustable Power Levels: Fine-tune output energy across 11 gears to match the thickness and material of your nickel strip for clean, consistent welds every time.
- Comprehensive Safety Protections: Features overcharge protection, temperature monitoring, short-circuit protection, abnormal battery temperature alarm, automatic welding shutdown, and low-voltage alarm — all packed into a compact handheld form factor.
- USB Type-C Charging: Charges conveniently via any standard Type-C cable (included). Ultra-low standby power consumption keeps it ready when you need it.
Technical Specifications
| Model | H1 |
| Gear Settings | 11 Levels (Adjustable) |
| Welding Mode | Automatic / Manual |
| Dimensions | 43 × 25 × 192 mm |
| Input Interface | Type-C |
| Input | 5V / 1A (MAX) |
| Output Voltage | 4.2V (MAX) |
| Output Current | 650A (MAX) |
| Working Temperature | -10°C to 60°C |
| Charging Temperature | 0°C to 60°C |
| Country of Origin | Made in Mainland China |
What's in the Box
- 1 × Handheld Spot Welder (Model H1)
- 1 × 2-Meter Nickel-Plated Strip
- 1 × Matte Paper Sheet
- 1 × Type-C Charging Cable
- 1 × User Manual
Safety Note
Always follow proper safety protocols when working with high-current welding equipment. For guidance on electrical safety in DIY and workshop settings, visit OSHA's Electrical Safety Resource.
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Frequently Asked Questions
Q: What types of batteries is this handheld spot welder compatible with?
A: This portable spot welder is compatible with 18650, 26650, 36650, and other standard cylindrical lithium battery cells, as well as mobile phone battery packs and a wide range of electronic devices that require battery assembly or repair.
Q: How do I charge the spot welder?
A: The spot welder charges via a standard USB Type-C cable (included in the package). Simply connect it to any 5V/1A USB power source to recharge the internal polymer battery.
Q: What safety features does this device include?
A: The H1 spot welder includes overcharge protection, temperature protection, short-circuit protection, abnormal battery temperature alarm with automatic welding shutdown, and a low battery voltage alarm — making it a safe and reliable tool for DIY battery work.
Q: Can beginners use this spot welder?
A: Yes! With only 2 clearly labeled buttons and 11 easily adjustable power levels, this welder is designed to be user-friendly. The included user manual walks you through setup and operation step by step.
Q: Does it come with nickel strip material?
A: Yes, the package includes a 2-meter nickel-plated strip, matte paper, a Type-C charging cable, and a user manual — everything you need to get started right away.
