1. Introduction
This manual provides essential information for the safe and effective operation of your Awithz P20B 14.6KW Capacitor Spot Welder. Please read this manual thoroughly before using the device to ensure proper setup, operation, and maintenance. This spot welder is designed for precision welding of battery packs, particularly 18650 and LiFePO4 cells, offering both automatic and foot pedal trigger modes.
2. Safety Instructions
- Always wear appropriate personal protective equipment (PPE), including safety glasses and gloves, when operating the spot welder.
- Ensure the work area is well-ventilated and free from flammable materials.
- Do not operate the welder in wet conditions or expose it to rain.
- Keep children and unauthorized personnel away from the operating area.
- Disconnect the power adapter before performing any maintenance or cleaning.
- Do not attempt to modify or repair the device yourself. Contact qualified service personnel for assistance.
- Use only the provided power adapter and accessories.
- Avoid touching the welding needles or workpieces immediately after welding, as they may be hot.
3. Package Contents
Verify that all items listed below are present in your package:

This image displays the Awithz P20B spot welder unit along with its complete set of accessories, including the foot pedal, welding pens, nickel strips, and charging adapter.
- Awithz P20B Spot Welder Unit x 1
- Foot Pedal x 1
- Spot Welding Pen x 2
- Spot Welding Needle x 6
- Nickel Sheet (5 meters) x 1
- Fast Charging Adapter x 1
- 6-Section 18650 Fixture x 1
- Metal File x 1
- User Manual x 1
4. Product Overview
Familiarize yourself with the main components and interface of the Awithz P20B spot welder.

This image highlights the key components of the Awithz P20B spot welder, including the power button, select buttons, OK button, welding pen interface, foot pedal port, and the 2.4-inch LCD display showing operational settings.
- Power On/Off / Select Button: Used to power the device on or off, and for navigation within menus.
- Select Button: Used to navigate through menu options.
- OK Button: Confirms selections or actions.
- Spot Welding Pen Interface: Connects the welding pens to the main unit.
- Foot Pedal Connection Port: Connects the optional foot pedal for trigger control.
- 2.4-inch LCD: Displays current settings, welding parameters, and operational status.

This image showcases the 2.4-inch HD large color screen of the Awithz P20B, providing a clear and professional display for operational settings and information.
5. Setup
Follow these steps to set up your Awithz P20B spot welder for operation:
- Connect Welding Pens: Insert the spot welding pens into the designated interface on the front of the main unit. Ensure a secure connection.
- Connect Foot Pedal (Optional): If you intend to use the foot pedal trigger mode, connect the foot pedal cable to the foot pedal connection port.
- Connect Power Adapter: Plug the fast charging adapter into the power input port on the unit, then connect it to a standard 100-240V AC power outlet. The unit supports 15A high current fast charging.
- Power On: Press and hold the Power On/Off button until the LCD screen illuminates.
- Initial Settings: The device will display the main interface. You may need to adjust initial settings such as welding mode, gear, preheating time, and trigger time according to your specific welding requirements. Refer to Section 6 for detailed operating instructions.

This diagram highlights the 15A high current fast charging capability of the Awithz P20B, which significantly increases continuous stable spot welding performance.
6. Operating Modes and Settings
The Awithz P20B offers two primary welding modes: Automatic Trigger (AT) and Pedal Trigger (MT).

This image demonstrates the two available welding modes: Automatic Trigger (AT) for fast and easy welding, and Pedal Trigger (MT) for independent and controllable operation. Both modes support preheating, interval, and stitch welding settings.
6.1. Automatic Trigger (AT) Mode
In AT Mode, the welder automatically detects contact with the workpiece and initiates the weld. This mode is suitable for fast and repetitive welding tasks.
6.2. Pedal Trigger (MT) Mode
In MT Mode, the weld is initiated by pressing the foot pedal. This provides independent and controllable operation, allowing for precise placement before welding. Ensure the foot pedal is connected for this mode.
6.3. General Welding Settings
Both AT and MT modes support the following adjustable settings via the 2.4-inch LCD interface:
- Welding Mode: Select between Automatic (Auto) or Manual (Pedal).
- Gear: Adjusts the welding power level. Higher gear numbers typically correspond to higher power. Start with lower settings and increase gradually.
- Preheating Time: Sets a brief preheating pulse before the main weld, which can improve weld quality on certain materials.
- Interval: For multi-pulse welding, sets the delay between pulses.
- Stitch Welding: Allows for multiple welding pulses in a single trigger event.
- Trigger Time: The duration the welding current is applied.
- Number of Continuous Spot Welding: Configures how many spots can be welded in quick succession.
Use the Select buttons to navigate through the settings and the OK button to confirm changes. Always test settings on scrap material before welding your final workpiece.
7. Maintenance
Regular maintenance ensures the longevity and optimal performance of your spot welder.
- Cleaning: Regularly clean the welding pens and needles to remove any residue or oxidation. Use a fine-grit sandpaper or the included metal file to sharpen the tips of the welding needles if they become dull or pitted.
- Needle Replacement: Replace welding needles when they become too short, excessively worn, or damaged. Ensure new needles are securely installed.
- Capacitor Health: The unit features durable Farad capacitors designed for long life. While minimal degradation is expected over time, proper usage and avoiding excessive overloading will help maintain optimal performance.

This diagram illustrates the durability of the Farad capacitor, showing minimal degradation after one year of use, indicating long-lasting performance.
8. Troubleshooting
If you encounter issues with your Awithz P20B spot welder, refer to the following common problems and solutions:
- No Weld or Weak Weld:
- Check if the welding pens are making good contact with the workpiece.
- Increase the 'Gear' setting (welding power).
- Ensure welding needles are clean and sharp. File them if necessary.
- Verify the nickel strip thickness is appropriate for the selected power setting.
- Check for proper connection of the power adapter.
- Overheating:
- Allow the unit to cool down if it feels excessively hot.
- Ensure adequate ventilation around the unit.
- Avoid prolonged continuous welding without breaks.
- LCD Screen Not Displaying:
- Ensure the power adapter is correctly connected and plugged into a live outlet.
- Press and hold the Power On/Off button to ensure the unit is powered on.
- Foot Pedal Not Triggering:
- Verify the foot pedal is securely connected to its port.
- Ensure the welding mode is set to 'Pedal Trigger (MT)' on the LCD.
If the problem persists after attempting these solutions, please contact customer support.
9. Specifications
Detailed technical specifications for the Awithz P20B Spot Welder:

This table provides detailed specifications for the P20B, P30C, and P60F models. Refer to the P20B column for your specific model.
| Feature | Specification (P20B) |
|---|---|
| Model | P20B (TT-Awithz-P20B) |
| Shell Material | Plastic |
| Input Parameter | 8.1V/15A (MAX) |
| Output Voltage | 9V (MAX) |
| Output Power | 14.6KW (MAX) |
| Output Current | 1625A (MAX) |
| Net Weight of Host | 1.38 kg |
| Product Size (L x W x H) | 180 x 131 x 80 mm |
| Manufacturer | TOOLTOP |
| Certifications | CE, RoHS |
10. Warranty and Support
The Awithz P20B Spot Welder comes with a manufacturer's warranty. Please refer to the warranty card included in your package for specific terms and conditions.
- EU Spare Part Availability: A 1-year duration for EU spare part availability is provided.
- Customer Support: For technical assistance, warranty claims, or service inquiries, please contact the retailer or manufacturer's customer support channels. Have your model number (P20B or TT-Awithz-P20B) and purchase date ready when contacting support.