Features: 
* Can weld the nickel sheet firmly to the battery. Portable and reliable to use.
* Provide 8-gear power adjustment via button. Smart digital display shows the level clearly. 
* 5×300A high-quality MOS tubes, feature stable and strong current of up to 1500A.
* High-frequency capacitors and low internal resistance, resistant to high temperature of up to 105℃.
* 10AWG wire and ODSC welding needle, ensure large-current-passing capacity and durability.
* Ultra-thick pure- tube, effectively improves spot welding efficiency. 
* Optimal voltage / current: 12V / 150A. Support welding 0.1-0.15mm nickel plate.
* Widely suitable for welding 18650 / 26650 / 32650 lithium battery and other cylindrical lithium batteries, NI-MH battery, etc. 
Note:
1. After connecting to the power supply, a beep will be heard and the screen displays 0.  At this time, welding cannot be performed only after the output power (1-8 gear) is adjusted by the button.
2. 7V-16V voltage and 100-300A current are recommended, or it may damage the control board. 
3. Welding tip: Put the nickel sheet on the surface of the battery electrode that needs to be burst, tilt the nickel sheet with one pen, then tilt the nickel sheet with another pen. The welding will be triggered after about 0.5s when the control board detects that the pen is placed. If the solder joint is black, turn down the gear. If the melting point is too small, increase the gear.

Specifications:
Material: Copper+PC+Electronic Element
Color: Green+Black+Red
Recommended Working Voltage: 7-16V
Recommended Working Current: 100-300A
Max. Welding Thickness: 0.15mm
Recommended Working Power Supply: 
(1) 12V automotive starting power supply
(2) 30~35Ah capacity battery pack
(3) 12V 20~45Ah lead-acid battery with good performance
(4) 2S.3S.4S aeromodelling lithium battery pack
(5) 3-string high-magnification lithium battery pack
(* Charger, switching power supply and transformer can not be used as the power supply.)
Item Size: 9 * 5.6 * 1.5cm / 3.54 * 2.2 * 0.59in
Item Weight: 181g / 6.38oz
Package Size: 15 * 10 * 4cm / 5.91 * 3.94 * 1.57in
Package Weight: 210g / 7.41oz

Package List:
1 * Main Circuit Board
2 * Input Cable 
2 * Spot Welding Pen
1 * Roll of Nickel Sheet (5m)
4 * Set of Stainless Steel Screw
2 * Heat Shrinkable Tube