The DIY Portable 12V Spot Welding PCB Board Kit is a compact battery pack assembly tool that delivers 90 to 150A working current and 90 to 130A welding current from a 12V to 16.8V DC supply. The 80 x 35mm PCB board drives a high-current pulse through the welding probes to fuse nickel strips onto Li-ion and Li-Po battery cell terminals. The diy spot welding kit runs from a 12V lead-acid battery, 3S Li-Po pack, or compatible bench power supply with sufficient current capacity.
The battery spot welding 12V approach is preferred over soldering for Li-ion cell tab connections because soldering iron heat transfers into the cell body and can trigger internal thermal damage or venting. The pulse weld completes the nickel strip bond in milliseconds without raising cell temperature measurably. One trade-off to note: a 12V source must be capable of delivering high instantaneous current. A standard 12V wall adapter rated at 2A or 3A will not produce clean welds — a 12V battery or high-current bench supply above 10A is required.
The non-obvious detail is weld quality dependence on contact pressure — consistent downward probe pressure on the nickel strip during the pulse produces stronger welds than light or uneven contact. The spot welding for pcb circuit board community in India uses this kit for 18650 battery pack builds, power bank repairs, and e-bike battery assembly.
Available from StemVolt, this kit is suitable for electrical engineers working on battery pack applications and practical experiments with electronics projects.
Related Products:
- Explore The Batteries and Power Supply
Features:
- 90 to 150A working current delivers strong nickel strip pulse welds
- 12V to 16.8V supply range works with battery and bench sources
- 90 to 130A welding current fuses nickel strips to cell terminals cleanly
- Compact 80 x 35mm PCB suits portable and bench welding setups
- High-current PCB trace design minimises resistance in the weld current path
Technical Specifications:
 Applications:
- 18650 battery pack build uses DIY Portable 12V Spot Welding PCB Board Kit
- Power bank repair uses diy spot welding kit for nickel strip replacement
- E-bike battery assembly uses battery spot welding 12v for Li-ion tab joins
- RC Li-Po pack uses 12v spot welding kit for custom cell assembly
- College electronics lab uses spot welding for pcb circuit board project demo
Package Includes:
- 1 x DIY Portable 12V Spot Welding PCB Board Kit
Vikrant Talwar –
Trusted store in Rajasthan for DIY Electronics products, received 100% genuine product with proper packaging and customer support helpful for battery pack assembly guidance.
Amit Dubey –
Bought this DIY Portable 12V Spot Welding PCB Board Kit for college project work, welding performance was stable and technical support available helped during setup.
Neel Parekh –
Used this DIY kit for battery pack assembly practice in my workshop, build quality feels genuine and spot welding results were accurate and reliable.
Manju Rathore –
Original product received with fast shipping and responsive WhatsApp customer support assistance
Mohit Gaikwad –
Received Original product with fast shipping from the best store in Rajasthan, technical support available helped me to complete my college project successfully.
Pradeep Sharma –
Easy checkout, secure UPI payment