SeeSii 801D spot welder capacitor energy storage. Pulse battery spot welder with 73B welding pen.This 801d spot welder is equipped with two super capacitors for energy storage. Supports multi-functions: two working mode, enhanced pulse output, circuit board temperature monitoring and industrial grade durable. Designed for professional workers and DIY enthusiasts.The battery spot welder is equipped with super energy-gathered pulse technology with a max welding power of 12 KW. Can weld 0.1-0.3mm thick nickel sheets, but also can be used for spot welding of batteries, hardware, and electronic components. Mini and Compact design, portable welder with 100-240 V wide-voltage input. This battery welder comes with 73B welding pen and rocker type down pressure spot welding pen. Supports automatic and manual foot mode. LED intelligent display control panel, welding power/capacitor voltage/actual welding current are displayed. Product Dimensions: ‎8.07 x 6.69 x 5.91 inches The outer box is not in the best condition. All inside is in new, sealed condition. Box opened and sealed items displayed for these photos only.