DIY PCB Circuit Board Spot Welder Portable 12V Battery Storage Spot Welding Machine with Spot Welders Pen for 18650/2665

Features 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 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 resistance3 5 5 5ah 45C 3S aeromodel lithium battery pack30 35ah capacity 18650 battery packPackage Included 1 x Main board1 x Buzzer2 x 10AWG Input Wires2 x Spot Soldering PensDetail Pictures