Awgem SH1/SH2 Portable Handheld Battery Spot Welder

1. Introduction

Thank you for choosing the Awgem SH1/SH2 Portable Handheld Battery Spot Welder. This device is designed for efficient and precise spot welding of various battery types and metal sheets, offering both automatic and manual modes with adjustable power settings. Its compact and ergonomic design makes it ideal for DIY enthusiasts, electronic repair, and battery pack assembly. Please read this manual thoroughly before operation to ensure safe and effective use.

Figure 1: Awgem Handheld Spot Welder in use on a battery pack.

2. Safety Information

Always prioritize safety when operating electrical tools. Failure to follow these safety guidelines may result in injury or damage to the device.

• Ensure the work area is clean, dry, and well-ventilated.
• Wear appropriate personal protective equipment (PPE), including safety glasses, gloves, and non-conductive footwear.
• Do not operate the welder near flammable materials or gases.
• Avoid direct contact with the welding pins during operation.
• Do not attempt to weld materials thicker than specified in the specifications.
• Keep the device away from children and unauthorized personnel.
• Use only the provided Type-C charging cable and ensure the input parameters are 5V/2.1A (MAX). High voltage is strictly prohibited.
• If the device exhibits abnormal behavior, heating, or current fluctuation, immediately stop use and disconnect power.

Figure 2: Built-in protection features for safe operation.

3. Product Components

The standard package includes the following items:

• Awgem Handheld Mini Spot Welder (SH1 or SH2 model) x 1
• CuO-Al Welding Needles x 2 (pre-installed)
• Nickel-plated Strip (2 meters) x 1
• Sandpaper x 1
• Type-C Charging Cable x 1
• User Manual x 1
• Spare Welding Needles x 2

Figure 3: Awgem SH1 Package Contents.

4. Specifications

Figure 4: Awgem SH1 Product Information.

Figure 5: Awgem SH2 Product Information.

5. Setup

5.1 Initial Charging

Before first use, fully charge the spot welder using the provided Type-C charging cable. Connect the cable to the Type-C port on the device and a compatible 5V/2.1A (MAX) power source. The device features overcharge protection.

5.2 Welding Pin Adjustment and Replacement

The welding pins are designed for adjustable spacing (0.5-3mm) to suit various welding needs. They are also replaceable.

1. To adjust spacing: Loosen the fixing screws on both sides of the welding pins. Move the welding pins up or down to achieve the desired spacing (0.5-3mm). Tighten the screws firmly to secure the pins.
2. To replace pins: Loosen the fixing screws on both sides. Remove the old soldering pins along their direction. Insert new soldering pins and tighten the screws. Use a 3mm outer diameter cross screwdriver for embedded fixation. Do not forcibly remove screws if they are not loose, as this may damage the shell.

Figure 6: Adjustable welding pin spacing (0.5-3mm).

Figure 7: Welding Needle Replacement Guide.

6. Operating Instructions

6.1 Power On/Off

Press and hold the power button (ON/OFF/Welding Power Level Switching Key) for 2 seconds to turn the device on or off.

6.2 Mode Switching (Manual/Automatic)

The device supports both manual and automatic welding modes. Hold and press the Manual Welding key to switch between modes.

6.3 Power Level Adjustment

The SH1 model has 11 adjustable gears, while the SH2 model has 90 adjustable gears. Short press the power button (ON/OFF/Welding Power Level Switching Key) to switch between welding power levels. Adjust the power according to the material and thickness you are welding.

Figure 8: 11 Gear Adjustment Levels (SH1).

Figure 9: Digital Display with 90 Level Output Power (SH2).

6.4 Welding Process

The device uses dual pulse technology for firm solder joints without virtual welding.

• Prepare the materials: Ensure the surfaces to be welded are clean and free of oxidation. Use the provided sandpaper if necessary.
• Place the nickel strip: Position the nickel strip over the battery terminal or other material to be welded.
• Apply the welder: Place the welding pins firmly and squarely onto the nickel strip and the material below.
• Initiate welding: In automatic mode, the weld will trigger automatically when proper contact is made. In manual mode, press the manual welding key to trigger the weld.
• Check the weld: After welding, gently test the strength of the joint.

Figure 10: Dual pulse welding process and weldable material thicknesses.

Maximum Weldable Thicknesses:

• Nickel plating: 0.25mm (MAX)
• Steel sheet: 0.2mm (MAX)
• Iron sheet: 0.2mm (MAX)
• Pure nickel sheet: 0.15mm (MAX)

6.5 Applications

The Awgem spot welder is versatile and can be used for:

• Cylindrical cell welding (e.g., 18650, 26650, 36650 Li-ion batteries)
• Cell phone battery transplantation
• Sheet metal welding
• Button cell welding
• Electronic and electrical equipment maintenance
• Battery pack production and assembly
• DIY creations and repairs

Figure 11: Various welding applications.

7. Maintenance

• Keep the welding pins clean and free of debris. Use sandpaper to clean the tips if necessary.
• Store the device in a dry, cool place away from direct sunlight and moisture.
• Regularly check the Type-C charging port for any damage or obstruction.
• Ensure the fixing screws for the welding pins are always tightened before use.
• The device will automatically shut down after 8 minutes of inactivity to conserve battery life.

8. Troubleshooting

• Device not turning on: Ensure the battery is charged. Press and hold the power button for 2 seconds.
• Poor welding results:
  • Check if the welding pins are clean and sharp.
  • Adjust the welding power level (gear) to a higher setting.
  • Ensure the nickel strip and battery terminals are clean and free of oxidation.
  • Verify the welding pin spacing is appropriate for the task.
• Device shuts down unexpectedly: The device has an automatic shutdown feature after 8 minutes of inactivity. If it shuts down during active use, check the battery level.
• Overheating: The device has intelligent temperature control and will automatically protect itself at 85°C. Allow it to cool down before resuming operation.

9. User Tips

No specific user tips are available at this time. For best results, always practice on scrap materials before welding your final project.

10. Warranty and Support

Awgem products are manufactured under strict quality control standards. For any issues or inquiries, please refer to the contact information provided with your purchase or visit the official Awgem support channels. Please retain your proof of purchase for warranty claims.

Figure 12: Awgem Certifications and Patents.