Battery spot welding is used to connect lithium-ion batteries safely and securely. There are some potential risks to using a soldering iron on lithium-ion batteries. Improper soldering or excessive heat can pose a risk of explosion or fire. Excessive heat from the soldering iron can damage or destroy battery cells. Overheating can shorten the life of batteries or compromise their safety.

You can make a great contribution to your projects at a low cost and create a safe working environment by making a battery spot welding machine yourself. You can find all the details about the construction process in my video. #diy #battery #youtube

Required Materials
1. Power supply box (Empty)
2. Fan
3. Timing relay module (model: XY-LJ02)
4. Motorcycle starter relay
5. Vibrating relay
6. Pedal
7. Battery clip (2 pieces)
8. Born terminal (4 pieces)
9. Cable lug (6 pieces)
10. Cable (Thick and high current carrying type / 10mm)
11. Switch
12. DC Jack (2.1mm round / 2 pieces)
13. Female plug terminal (6 pieces)
14. Lithium-ion battery 18650 (3 pieces)
15. 18650 battery holder
16. TP4056 bms circuit (3 pieces)
17. Copper tip for point pen tip (2 pieces)

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