1.80 Levels of Adjustable Output: Our 676 spot welder with 80 levels output power adjustable,it can be adjusted 1-80 levels according to your different needs, adjustments can make the welding more precise and the spot welding effect more perfect.If you are a new learner you can adjust the delay time to delay the automatic weld time( 1-20s), it's very friendly for the beginner. 2.0.1-0.25mm Portable Spot Welder: Different from most portable spot welder on the market, our 600 mini spot welder adopt the latest technology and design, small in size but fully functional, which can meet your battery pack making needs. 3.LCD Visible Colorful Screen Display: This mini spot welder has a 2-inch LCD color screen display, supports automatic working mode, with functions of low battery charge reminder, real-time circuit board temperature monitoring and high- temperature reminder, menu settings, sound switch settings,screen display flip, welding spot count, automatic shutdown and other functions. 4.High Efficiency: The 676 is a portable battery energy storage type spot welder, which is mainly used for welding nickel sheets of cylindrical batteries such as 18650. This product has a built-in high-rate polymer power cell with a maximum output current of up to 6~1200A. After being fully , it can theoretically continuously weld thousands of points. 5.Intelligent and Safe to Use:The 18650 spot welder kit equipped with the upgraded chip, so that the use of electric welding is more in line with human nature. When the temperature is higher than 60/140F, the spot welder will automatically stop working to avoid damage to personnel or items. Wide Application:The mini spot welder is mainly used in the welding of nickel sheets of battery, which can be used for spot-welding cylindrical lithium batteries such as 18650/21650 and etc, nickel-metal hydride /cadmium nickel batteries and etc. Voltage:4.2+0.05V Welding current:6-1200A Overheating protection:65C Endurance:800-2000 times Standby current:20uA Battery capacity:5000mAh Full charge time:2-3 hours Battery working life:1000 times cyce. Theoretical standby time:more than 2.5 years Storage temperature and humidity:55C50%Maxlimited Charge:52V21A Discharge:5V24AMax*Try to avoid running out of power to prolong battery life. Colour:gray white Material:plastic+metal Package Contents: 1 x Host 1 Pair x welding pens 1 x Data cable 1 x Barley insulating paper 1 x Nickel tape 0.12mm 2 meters 1 x English Instruction manual 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 picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.