No spot welding pen ------ No spot welding pen is needed when going out or . This handheld spot welding machine does not require an additional spot welding pen and is easy to carry anywhere. The built-in power supply and soldering pen are combined into one, making it easy to solder without the need for an external soldering pen. Widely used - suitable for cylindrical batteries, such as 18650/26650/36650, mobile phone batteries and electronic devices that require batteries. The spot welder can be used to replace electronic equipment damaged due to battery damage, replace the battery and restore it to use (similar to a handheld electric drill), saving money and protecting the environment. EASY TO USE - With only 2 buttons, the buttons on our spot welder are labeled for ease of use. The battery spot welder does not need to leave the palm of our hands. Press and hold the power switch button on the side for 2 seconds with your middle finger, press the gear adjustment button on the top once with your index finger, and then hold it for 2 seconds to adjust automatic or manual mode. 11 Adjustable Gears - The spot welder has 11 adjustable output powers that can be adjusted according to the different materials you spot weld. 1-3 gears for cell phone batteries, 3-6 gears for 0.1 mm nickel plates, 6-11 gears for 0.12-0.15 nickel plates. It can spot weld more than 200 times on a single charge. Multiple protection measures - This is a mini handheld spot welder, but it has polymer battery, overcharge protection, temperature protection, short circuit protection, abnormal battery temperature alarm and off-ground welding function, as well as low cell voltage alarm . Ultra-low power consumption, longer standby time. Material:Metal Package Contents: 1 set x welder jewelry