GT-690 Portable Pulse Spot Welder Board with 2Pcs Spot Welder Pen and 3.7V 5000mA Lithium Battery for Lithium Battery Fa

Manual Click here to open 1 only 1pcs Spot Welder Board 2 1pcs Spot Welder Board 2Pcs Spot Welder Pen 1pcs 3 7V 5000mA Lithium Battery1 IntroductionThis product is used for daily household or a small amount of spot welding butt welding work It is automatically triggered without a switch It is convenient and quick to work It can be spot welded with nickel strip iron sheet stainless steel 18650 lithium battery and the thickness of spot welding is wide 0 0 2mm Meet daily use 2 ParameterPower supply mode① Lithium battery packBattery rate ≥100AWorking voltage 3 4 2VCharging parameters 4 5 7V ≥3AUsage The battery is connected to the product positive and the battery negative is connected to the product negativePower supply mode ② Farad capacitor bankCapacitor voltage ≤5 7VRecommended capacitance 3000FWorking voltage ≤5 7VRecommended voltage 4 5 5 5VHow to use The power supply is connected in parallel with the Farad capacitor the capacitor positive is connected to the product positive and the capacitor negative is connected to the product negativeDesign current maximum 1200ASupport welding 0 1 0 2 nickel sheet iron sheet stainless steelWelding time several millisecondsCharging voltage 4 5 5 5V current ≥3A Protection range charging overcurrent protection charging overvoltage protectionAmbient temperature 0℃ 70℃Environmental humidity 20 80 RH3 Features⑴Small size⑵Simple operation⑶ Hard appearance⑷Easy to use⑸Super currentHow to Use ⑥Long pres