Please note: DH20 model comes as different variation. The brand name "BIFRC" may not be written.

Specifications:

• Model: DH20 Spot Welding Machine (9 Levels Version)
• Material: Metal Case
• Battery Capacity: 5500mAh
• Welding Output: 4.2V Max 639A
• Welding Thickness: 0.1-0.15mm
• USB Output:5V Max 2.4A
• Charging Port: Type-C
• Product Weight: 302g
• Product Size: 103x83x29mm
• Package size: 143x107x48mm
• Package weight: 407g

Package Includes:

• 1 x DH20 Welding Machine
• 1 x Welding Pen
• 1 x 0.12mm*8mm*2m Nickel Plated Steel Belt

How to Use:

Important Note: Fully charge the battery before use

1. To Turn On/Off - Long press button for 3 seconds then release the button after hearing the boot sound,that is turn on/off.
2. Short press the button. If the buzzer rings, that is shift position. Press one time, and it can add 1 gear. 1-9 cycles, and the 9th gear is the strongest welding strength.
3. Soldering Operation - Start with level 1, unit will start soldering after 0.5 seconds once it detects item. Power setting can be adjusted to suit different soldering job. If high level going into current protection mode and reboot,you can connect a USB input;
4. Auto Power Off - After no activity for 15 minutes the unit will automatically shut down.
5. USB Output - The USB output will be activated automatically once connected. Once output current is less than 50mAh the unit will automatically cut power output. Short press button to resume power output.
6. Error Warning - If the device fails, the buzzer keeps beeping after turning on;
7. Firmware Update - The upgrade port is reserved, which can be upgraded to the latest firmware

Precaution:

1. It's recommended to weld nickel sheets below 0.15mm (Can welding 0.15mm).
2. It's recommended to weld when battery power over 70% for better welding effect.
3. Pay attention to the placement of the soldering pen,if the pressure of the soldering pen too loose,will break down the nickel sheet.
4. If the pressure of the soldering pen too tightly,the welding will be week.