Portable, stable and . 26650/32650 battery can be welded, light, stable and reliable. According to different configurations, the thickness can be about 0.1mm-0.15mm. This spot welder circuit board can be used to weld 18650/26650/32650 lithium batteries. Equipped with a 12V battery, the circuit become an energy storage spot welder for welding nickel sheets such as lithium batteries and nickel-chromium batteries. Material:PC+metal colour:Black Package Contents: 1 x Circuit board 4 x Bronze noses 4 x Screws 1 x Buzzer 1 x 1 meter nickel sheets 1 x Capacitor 2 x Welding pens 2 x Input wires 2 x Heat shrinkable tubes Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.