Specifics: Style 1: 5000mah 5000mah can be filled with more than 500 times. Battery internal resistance 1m, can be point 0.2mm within the nickel-plated tape, 0.15mm pure nickel tape Style 2: 10000mah 10,000mah can be filled for more than 1000 times. The internal resistance of the battery pack is 0.5m. Can point within 0.3mm nickel-plated steel belt, 0.2mm pure nickel belt, 0.1mm copper skin and steel bottom welding High definition IPS LCD screen, accurate display of all values at a glance Contents of the display: 1. Welding power level. 2. 2. Power display. 3. Spot weld count, +1 for each spot weld. 4. Battery voltage. 5. Set the trigger queue value, greater than the read value (6) will trigger the weld 6. Weld reading value 7. Battery temperature 8. The sign that the soldering operation can be carried out Caution. To solder soft pack batteries with aluminium lugs to nickel, use aluminium-nickel composite tape. Please use a compliant charger for charging, and pull out and store the spot welding pen when not in use. When the battery is low, please recharge it in time. Storing it empty for a long time may also cause the product to fail. Do not short-circuit the tip of the soldering pen directly when switching on. Feature: Using aluminum alloy shell, CNC lower layer process, providing 2 kinds of battery capacity to choose from. Wide range of applications and stable performance. One piece welding pen, built-in high rate battery, excellent charging and discharging performance, easy to operate. Compact, hand-held portable spot welder, the size of an ordinary rechargeable battery. With quick release soldering pen, good conductivity, stable temperature, fast heat conduction, good performance. Friendly Tips Due to manual measurement , there may be 1-3cm deviation exist,hope you can understand. There are slight difference between the picture and the real item caused by light brightness,hope you can understand. Package includes: 1pc of Spot welder 2pcs of Spot welding pen 1pc of 2m nickel plated 1pc of Charging cable