DIY Portable 12V Battery Energy Storage Spot Welding Machine PCB Circuit Board Welding Equipment Spot Welding Machine Ac

Foreword Thank you for your attention This product is a semi finished circuit board You need to have a certain electrical knowledge and hands on ability You also need to prepare some necessarytools such as pliers screwdrivers soldering irons etc Note Battery Not IncludeDescription The circuit board of this spot welder can be used for welding 18650 26650 32650 lithium batteries Advantages portable stable reliable and durable Low cost you have a car starter battery or a high power battery pack you can connect it and use it Save production costs Users need to bring their own 12V battery for power supply the welding current is about 90A 130A and it is easy to weld the common 0 1mm 0 12mm nickel plated sheet Please make sure that your battery can have a current greater than 90A otherwise you will not be able to weld Power supply voltage 12V 15VWorking current 90 150A discharge below 90A it will not work A battery with a large discharge current will directly affect the welding effect The following batteries are recommended 20 45ah Lead acid batteries with good performance and small internal resistance internal resistance less than 10 milliohms discharge current greater than 90A such as a new car starter battery 3 5 5 5ah 3S model airplane lithium battery pack around 45C30 35ah capacity 18650 battery packPower Requirements Spot welding is welded by the principle of rapid local heating and cooling by high current Need sufficient current supply gener