1、High Efficiency: Battery spot welding pen adopts thick copper strip, which is conducive to improve the efficiency and suitable for long time use. 2、Integrated Design: Automatic trigger spot welding pen adopts integrated design, which is beautiful and neat and has good heat dissipation effect. 3、Retractable Design: Handheld spot welding pen has double springs inside the handle, each pen can be retracted independently. 4、Easy to Operate: The automatic trigger spot welding pen has a built in limit switch for one handed operation without a foot pedal. 5、Comfortable and Effortless: Battery spot welding pen feels comfortable in the hand, withstands long hours of use, is stable and reliable, and is wear resistant and effortless.