It's suitable for battery pack spot welding and assembly in the factory for 14500 / 18650 / 21700 / 26650 / 32700 multi-parallel multi-series combination.It can be used in electric tool battery, torsion car battery, Energy Storage Battery Pack, Scooter Electric Vehicle Battery, etc. And there are various types of spot welding machines, such as single-sided spot welding machines, double-sided spot welding machines, gantry spot welding machines, etc