1. 99 gear power adjustment, digital tube real-time gear display, gears 0-99, 1st gear is the lowest, 99th gear is the highest, increase the gears in turn when using
2. Using 5 MOS tubes: The control board of the spot welding machine adopts 5 MOS tubes. After 5 parallel connection, the theoretical maximum current can reach about 1700A.
3. 8 square spot welding pen, 10AWG wire, alumina copper spot welding needle, to ensure over-current capability and durability, greatly improve spot welding efficiency
4. Bilateral outlet, easy to spot welding, the product is marked, it is not easy to connect wrongly
5. Suitable for 14650, 17490, 18650, 21700, 26650, 32650 and other cylindrical lithium batteries, nickel-hydrogen batteries, etc., can be spot welded firmly, support 0.1-0.3mm nickel sheet spot welding

Product name: 99 gear spot welding machine
Working voltage: 6.5V-16V
Working current: Less than 20ma
Standby power consumption: Less than 0.5ma
Recommended use temperature: -10-60℃
Voltage: 12V
Welding peak current: 1700A MAX
Thickness of welded nickel sheet: 0.1-0.3mm (related to battery discharge energy)
Capacity: 20AH-80AH (new battery no more than 45AH or: 4-5 strings of super Farad capacitors)
Prohibition: It is forbidden to use switching power supplies, transformers, chargers, water batteries, and power banks to supply power!
Product size: 90x60mm
Colour:Purple
Material:PCB+Metal

Package Contents:
1 x Control panel
2 x input line
2 x spot welding pen
2 x heat shrink sleeve
1 x screw pack
1 x Nickel sheet
1 x Chinese and English manual