Mini spot welder with output power is suitable for welding 0.1-0.15mm plated steel sheet and 0.1mm pure sheet quickly. Portable and lightweight, space-saving , easy to carry outside. Easy to operate, one key turn on or off. 6 gears of output power adjustable, freely switching according to practical needs. Applicable to home use, DIY, maintenance, etc. 2 mobile welding are made of 10AWG silicone wire and copper rod, and it comes with 2 protective sleeves. The welding allow long welding range and can meet welding needs. 5300mAh -capacity lithium rechargeable battery, low power consumption, long usage time when full . And it can also be used as power bank to charge your phone conveniently. Made of high quality ABS and PCB, features great durability and stable performance, has long service life. Advanced power management and software design, non-reset and non-zero during welding. Product name: portable mini spot welder Material: ABS+metal Colour: Black Specification: 5300 mah for single battery Output Power: 6 Levels Adjustable Battery type: rechargeable polymer lithium battery Battery capacity: 5300mah Input parameters: 5V/2A Input interface: round hole Output voltage: 4.2V (MAX) Output current: 550A (MAX) Design current: 1000A (MAX) Applicable sheet thickness: 0.1-0.15mm Product size: 140 x 81 x 40 (mm) Package Contents: 1 x spot welder 1 x plate 1 x charging wire 1 x heat shrink tube Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.