This machine is to connect the cells to form a battery pack. With precise digital control, GD-23 can pre-store 10 procedures. The procedures can be adjusted and revised meanwhile. The dual-pulse ensure the firm and neat solding. All parameter can be showed the LED panels accordingly. GD-23 adopted dual-cylinder action, three-dimensional electrode-regulation, so that the cells in various shapes, sizes and material can be welded easily. In addition, GD-23 can monitor,track and compensate the grid voltage automatically. With high power, simple operation and strongly solder ,which make GD-23 as a reliable spot welder