<p>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</p> <p>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.</p> <p>3. 8 square spot welding pen, 10AWG wire, alumina copper spot welding needle, to over-current capability and durability, greatly improve spot welding efficiency</p> <p>4. Bilateral outlet, easy to spot welding, the product is marked, it is not easy to connect wrongly</p> <p>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</p> <p>Product name: 99 gear spot welding machine</p> <p>Working voltage: 6.5V-16V</p> <p>Working current: Less than 20ma</p> <p>Standby power consumption: Less than 0.5ma</p> <p>Recommended use temperature: -10-60</p> <p>Voltage: 12V</p> <p>Welding current: 1700A MAX</p> <p>Thickness of welded nickel sheet: 0.1-0.3mm (related to battery discharge energy)</p> <p>Capacity: 20AH-80AH (new battery no more than 45AH or: 4-5 strings of super Farad capacitors)</p> <p>: It is forbidden to use switching power supplies, , chargers, water batteries, and power to supply power!</p> <p>Product size: 90x60mm</p> <p>Colour:Purple</p> <p>Material:PCB+Metal</p> <p>Package Contents:</p> <p>1 x Control panel</p> <p>2 x input line</p> <p>2 x spot welding pen</p> <p>2 x heat shrink sleeve</p> <p>1 x screw pack</p> <p>1 x Nickel sheet</p> <p>1 x Chinese and English manual</p> <p>Only the above package content, other products are not included.</p> <p>Note: Light reflection 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.</p>