Feature:1. Support triggered automatic spot welding, handheld welding pen, constant temperature welding pen, support quick current setting, welding needle pressure adjustment, pulse group selection2. Come with LED welding pin double row quick pullin welding pen, highpower welding for 0.3mm, intelligent cooling system, pulse value display3. Compact body shape with convenient handle, which is more lightweight and convenient to move4. Using a fixed pulse spot welding head to perform spot welding on three rows of battery packs5. Can be used for spot welding battery, including a variety of tools, complete accessories, and easy to useSpecification:Item Type: Spot WelderModel: 709AD+Purpose: Spot welding of batteryPower Supply Voltage: AC220V/110V20VPower: 3.2KW (instantaneous)Spot Welding Current: 50~800ADouble Pulse Time: 1-10ms (adjustable)Four Pulse Time: 2-20ms (adjustable)Eight Pulse Time: 8-80ms (adjustable)Fixed Head Spot Welding Range: 0.05~0.35mmSpot Welding Range of Spot Welding Pen: 0.05~0.2mmBody Size: Approx. 140 x 245 x 200mm / 5.5 x 9.6 x 7.9inConstant Temperature Soldering Pen Part: Soldering Pen Temperature: 150~450Constant Temperature Accuracy: 5Soldering Station Output Voltage: 20VDCPower of Soldering Pen: 50WHeating Time: 6-8 seconds to 30070BN Mobile Pulse Spot Welding Pen Part: Adjustable Welding Pin Spot Welding Distance: Approx. 2 ~ 7mm / 0.1 ~ 0.3inTotal Length of Mobile Spot Welding Pen: Approx. 580mm / 22.8inCross-Sectional Area of Soldering Pen Cable: 16mmSoldering Pin Size: Approx. 1.5 x 7mm / 0.1 x 0.3in.Package List:1 x 709AD+ Host1 x User Manual1 x S-70BN Spot Welding Pen1 x Constant Temperature Soldering Pen1 x Soldering Pen Holder1 x Wire Control Foot Switch1 x 18650 Six-Cell Battery Clamp1 x Hex Screw Wrench2 x 20A Fuse (110V machine with 30A)4 x Push Welding Head Spot Welding Needle 2 x Spot Welding Pen Spot Welding Needle50 x 0.1x4x100mm Nickel Plated Sheet 50 x 0.15x8x100mm Nickel Plated Sheet1 x S-31A Welding Needle Electric Grinding MachineNote:1. The AC power supply line must be reliable. The power plug of the machine must be plugged into the primary power socket to ensure good contact. Do not plug into the secondary power socket, that is, the extension socket, otherwise it will cause a large current in the spot welding machine unavailable, affecting the spot welding effect.2. The welding workpiece should be clean. If there is oil stain on the surface, the oxide layer should be removed, otherwise the welding will be poor.3. Keep the welding taper of the welding needle and the welding needle clean, and often use fine sandpaper to wipe off the oxide layer on the tip to maintain good contact.