g pen battery nickel chip spot welding.
Instant heat to remove the sliding screw.
Overheating protection, safe and efficient.
Positive and negative polarity recognition.
Lock circuit fault in 1 second. Remove sliding screw when heating up. support simultaneous spot welding of nickel chip with double spot pen.
Support two spot welding pen work at the same time.
Support spot welding of 0.1-0.15mm nickel chip for lithiem battery. Small body with great wisdom 2 hours last full long enduarance.