1. Introduction
Thank you for choosing the dwndpump DP6 Electric SUP Air Pump. This portable and powerful pump is designed to quickly inflate and deflate a variety of inflatable items, including Stand-Up Paddleboards (SUPs), inflatable boats, air mattresses, and more. Featuring a high-capacity rechargeable battery, digital display, and auto-off function, the DP6 ensures a hassle-free and secure inflation experience. Please read this manual thoroughly before use to ensure proper operation and maintenance.

Figure 1: dwndpump DP6 Electric SUP Air Pump
2. Safety Information
- Read all instructions before operating the pump.
- Keep the pump away from direct water immersion. While designed for use with water sports equipment, the pump itself is not waterproof.
- Do not operate the pump if it appears damaged or is not functioning correctly.
- Keep out of reach of children. This is not a toy.
- Use only the provided or approved accessories (hoses, nozzles, charging cables).
- Do not block the air intake or outlet during operation.
- Avoid prolonged exposure to direct sunlight or extreme temperatures.
- Do not attempt to disassemble or modify the pump.
- Ensure the inflatable item's maximum pressure rating is not exceeded.
3. Package Contents
Please check the package for the following items:
- 1 x dwndpump DP6 Electric SUP Air Pump
- 1 x Air Hose
- 7 x Various Gas Nozzles
- 1 x Charging Cable (USB-C or similar, implied by 30W fast charging)

Figure 2: Pump and included nozzles
4. Product Overview
The dwndpump DP6 features a robust design with intuitive controls:
- Digital Display: Shows current and target pressure (PSI).
- Control Buttons: Power On/Off, Mode selection, Pressure Increase (+), Pressure Decrease (-).
- Inflation Port: For connecting the hose to inflate items.
- Deflation Port: For connecting the hose to deflate items.
- Charging Port: For recharging the internal battery.
- Rechargeable Battery: High-capacity 5200mAh, 18.5V, 96.2Wh battery.
- Auto-Off Function: Automatically stops inflation once the preset pressure is reached.
5. Specifications
| Feature | Specification |
|---|---|
| Model Number | DP6 (D21PRO) |
| Battery Capacity | 5200mAh, 18.5V, 96.2Wh |
| Maximum Pressure | 20 PSI |
| Dimensions (L x W x H) | 22.15 x 16.5 x 8.1 cm (8.72 x 6.49 x 3.19 inches) |
| Weight | 1.63 kg (3.59 lbs) |
| Charging | 30W Fast Charging |
| Outdoor Activity | Surfing |
| Certification | CE |
| Origin | Mainland China |

Figure 3: Product dimensions and weight
6. Setup
6.1 Initial Charging
Before first use, fully charge the pump's internal battery. Connect the charging cable to the pump's charging port and to a compatible 30W fast charger. The digital display may indicate charging status.

Figure 4: Charging the pump
6.2 Attaching Hose and Nozzle
- Select the appropriate gas nozzle for your inflatable item from the included accessories.
- Attach the selected nozzle securely to one end of the air hose.
- Connect the other end of the air hose to the desired port on the pump: the inflation port for inflating or the deflation port for deflating. Ensure a tight connection to prevent air leakage.

Figure 5: Applications and included nozzles
7. Operating Instructions
7.1 Power On/Off
Press and hold the power button (usually marked with a power symbol) for a few seconds to turn the pump ON or OFF. The digital display will light up when powered on.
7.2 Setting Desired Pressure (PSI)
Once the pump is on, use the '+' and '-' buttons to adjust the target pressure. The digital display will show the selected PSI. The pump supports up to 20 PSI.
7.3 Inflation
- Ensure the air hose is connected to the inflation port on the pump and the correct nozzle is attached to your inflatable item.
- Securely connect the nozzle to the valve of your inflatable.
- Set your desired pressure using the '+' and '-' buttons.
- Press the power button to start the inflation process. The pump will automatically stop once the preset pressure is reached.
Inflation Speed Reference (for a standard 10.6ft SUP board):
- Approximately 4 minutes to 12 PSI
- Approximately 5 minutes to 15 PSI
- Approximately 6 minutes to 18 PSI

Figure 6: Lightning Fast Speed Inflation

Figure 7: Hassle-free operation with auto-off
7.4 Deflation
- Ensure the air hose is connected to the deflation port on the pump and the correct nozzle is attached to your inflatable item.
- Securely connect the nozzle to the valve of your inflatable.
- Press the power button to start the deflation process. The pump will quickly remove air from the item.

Figure 8: Fast Deflation Function
7.5 Battery Life
The 5200mAh rechargeable battery provides ultra-long battery life. A single full charge can inflate approximately 7 standard 10.6ft SUP boards (from 0-12 PSI).

Figure 9: Ultra-long battery life
8. Maintenance
8.1 Battery Care
- Fully charge the battery before storing the pump for an extended period.
- To maintain battery health, charge the pump at least once every 6 months, even if not in use.
- It is recommended to use the pump at least once a year to keep the battery active.
8.2 Cleaning and Storage
- Wipe the exterior of the pump with a soft, damp cloth. Do not use harsh chemicals or abrasive cleaners.
- Ensure the pump is completely dry before storing.
- Store the pump and its accessories in a cool, dry place, away from direct sunlight and extreme temperatures.
9. Troubleshooting
- Pump not turning on: Ensure the battery is charged. Connect the pump to a charger and try again.
- Pump not inflating/deflating: Check all hose and nozzle connections for tightness. Ensure the correct port (inflation/deflation) is being used. Verify that the target pressure is set correctly for inflation.
- Slow inflation/deflation: Check the air hose and nozzles for any blockages or kinks. Ensure the inflatable's valve is fully open.
- Pump overheating: If the pump feels excessively hot, turn it off and allow it to cool down for at least 15-20 minutes before resuming operation. Prolonged continuous use can cause overheating.
10. User Tips
- Always double-check that the nozzle is securely attached to both the hose and the inflatable's valve to prevent air loss and ensure efficient operation.
- For optimal battery performance, avoid completely draining the battery frequently.
11. Warranty & Support
For warranty information, technical support, or any questions regarding your dwndpump DP6 Electric SUP Air Pump, please contact the seller or manufacturer directly through your purchase platform. Please have your order details and product model number (DP6) ready when contacting support.