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12V Spot Welder Pen Tool Kit DIY PCB Circuit Board Spot Welding Machine

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Portable 12V DIY PCB Circuit Board Spot Welding Machine for 18650 26650 32650 Battery Spot Welder with Nickel Sheet Soldering Pen Welding Tool Kit
Feature:
For welding 18650/26650/32650, etc.
Lithium battery, advantages: portable, stable and reliable, and durable.
Users need to supply 12V battery power, welding current is about 90A - 130A, for the common 18650/26650/32650 0.1mm - 0.15mm nickel plated welding. After several generations of product updates, it is now upgraded to automatically trigger the welding, liberating the buttons of the fingers.

Specification:
Material: Electronic components
Packing size 15*10*3cm
Power Supply Requirements:
System voltage: 12V-14.6V (capacity X rate = must be greater than 150A)
Current requirements: 150A or more instantaneous output (such as car starter power supply, 3S RC high-power battery pack, 20A lead-acid battery with good performance above 20A)

Misunderstanding:
Don\'t think that you can use 3 series 18650 series to supply power. After all, the conventional 18650 only has 3-5C discharge rate, so each section can only provide 2.5A*3=7.5A load capacity, which is far from 150A unless 20 Parallel connection, 3 series and 60 sections of 18650 are possible, but it is obviously unrealistic.

Battery recommendation:
20-45Ah Lead-acid battery with good performance and small internal resistance
3.5-5.5Ah 45C 3S aeromodel lithium battery pack
30-35Ah capacity 18650 battery pack

Note:
Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you!
Please allow 1-2cm measuring deviation due to manual measurement.