USB Rechargeable Lithium Battery Spot Welding Machine Dual - 7A

This is a kind of fine quality spot welding machine 20 gears power adjustable accurate current control easy to adjust according to your demands. Intelligent chip induction no need button automatic trigger after 1s delay. Thicken pure copper strip supperlow internal resistance to increase overcurrent capability. Two types optional 7A and 5.5A compare with 5.5A the 7A machine has long-endurance capacity you can choose according to your demands. You can have a try.Features:Equipped with rotation knob 20 gears power adjustable accurate current control easy to adjust according to your demands.Compact and practical beautiful appearance easy to carry around with you.Intelligent chip induction no need button automatic trigger after 1s delay.Thicken pure copper strip supperlow internal resistance to increase overcurrent capability.There are three MOS tubes each pcs provides 520A peakcurrent.Retractable spot welding pen design with 5.5mm space between two pentips.Two types optional 7A and 5.5A compare with 5.5A the 7A machine has long-endurance capacity you can choose according to your demands.Difference:Adopt high power battery 5500mAh capacity with 385A output current and 70C discharge rate.Adopt high power battery 7000mAh capacity with 490A output current and 70C discharge rate.Specifications:Name: Spot Welding MachineMaterial: plastics + copperType: 5.5A 7A (optional)Battery:5.5A: 1 * 40900 battery 3.7V 5500mAh (included)7A: 1 * 40105 battery 3.7V 7000mAh (included)Item size:5.5A: 100 * 40mm / 3.94 * 1.57in7A: 120 * 40mm / 4.72 * 1.57inPackage size: 150 * 60 * 60mm / 5.91 * 2.36 * 2.36inPackage weight:5.5A: 450g / 0.99lb7A: 470g / 1.04lbPacking List:1 * Spot Welding Machine1 * Cable1 * Adapter1 * 10m Nickel Sheet 0.12*8mm