12V Portable Mini Spot Welder Set for 18650 21700 26650 32650 Battery

Specification：
• Can be welding 18650/21700/26650/32650 li-ion battery, it is portable, stable and reliable
• System voltage: 12V-14.6V
• Working current: 90-150A

Suggested battery:
1/ 20-45ah Lead-acid battery with good performance and small internal resistance
2/ 3.5-5.5ah 45C 3S are model lithium battery pack
3/ 30-35ah capacity 18650 battery pack
4/ This circuit with a 12V battery will become an energy storage spot welding machine for welding nickel pieces such as lithium batteries and nickel-chromium batteries. According to different configurations, the thickness can be about 0.1MM-0.15mm

Note:
• If the battery is pretty good and the internal resistance is very low, and then there may be large current overload.
• If you are not sure about your battery, it’s better to extend the wire by around 1 meter with 2.5² or 4² wire, then it will reduce the risk of power tube burnt.

Package Include:
1pcs x Main Circuit Board
1pcs x Buzzer
2pcs x Input Wire
2pcs x Output Line with Welder Pen