FEICHAO Battery Spot Welding Board Handheld Spot Welder PCB Circuit Board 8 Tube High Current for DIY Portable 12V Battery
-Can be welding 18650/26650/32650 lipo battery, it is portable, stable and reliable
-System voltage: 12V-14.6V
-Working current: 90-200A
Suggested battery:
-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
-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
Notice: The 18650 battery and DC power cannot be used as a power supply. It must have a high rate RC battery or a car battery!
Power requirements:
Spot welding is welded by the principle of rapid local heating and cooling by high current. Need sufficient current supply, generally 0.1-0.15 nickel plated sheet welding current about 90-150A, as the working power of the circuit board must be greater than or equal to 150A.
The following battery packs can be used as working power:
12v car starting power supply, 3s high-rate battery pack for model airplane ,three-string high-rate lithium battery pack, Hitachi 40900 3-sting battery pack,lead-acid battery with good performance above 12v 20A.
Calculation formula: capacity x discharge rate = load capacity
Take 3000ma aeromodeling battery as an example. The discharger rate is 45C (3.0X45C=135A)
Button Instructions Description:
Each time you press the button, the power increases by one level. LEDs 1-5 indicate that the power is from small to large, 1 is the smallest, 5 is the largest, and the LEDs are all off to turn off the output
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