1. Introduction
Thank you for choosing the Mellif Cordless Paddle Board Pump MFPBPO2-JY. This portable electric air pump is designed for efficient inflation and deflation of various inflatable items, including stand-up paddle boards, kayaks, boats, and air mattresses. It offers versatile power options, including compatibility with Milwaukee 18V batteries (not included) and a 12V DC car connector. Please read this manual thoroughly before use to ensure proper operation and to maximize the lifespan of your pump.
2. Safety Information
- Always keep the pump away from water and moisture. This device is not waterproof.
- Do not operate the pump near flammable liquids or gases.
- Ensure proper ventilation during operation to prevent overheating.
- Do not block the air intake or outlet during use.
- Keep children and pets away from the pump during operation.
- Disconnect the power source when the pump is not in use or before performing any maintenance.
- Do not exceed the recommended pressure for your inflatable item. The pump features an auto shut-off function, but always monitor the inflation process.
- The pump is designed for intermittent use. Allow it to cool down after prolonged operation to prevent damage.
- Only use the provided accessories and nozzles.
3. Package Contents
Verify that all items are present in the package:
- 1 x Mellif Paddle Board Pump
- 1 x 12V DC Car Power Cord (9.5ft)
- 1 x Adapter Connector
- 1 x Inflation Hose
- 6 x Inflation Nozzles (various types for different inflatables)
4. Product Features
4.1. Dual Power Supply
The pump offers two power options for convenience:
- Milwaukee 18V Battery Compatibility: Use your existing Milwaukee 18V batteries (battery not included). Features low voltage protection, automatically shutting off below 14.4V to prevent over-discharge and protect battery life.
- 12V DC Car Connector: Utilize the included 9.5ft 12V DC car power cord for power directly from your vehicle.

Image: The pump showcasing its dual power options: a 12V car connector and a slot for a Milwaukee 18V battery.
4.2. High Performance Inflation
Inflates paddle boards up to 20 PSI in approximately 8 minutes. Delivers a maximum pressure of 20 PSI with an air flow speed of 13 CFM.

Image: Close-up of the pump's digital display indicating 20 PSI and an 8-minute inflation time.
4.3. Auto Shut-Off & Digital Display
The backlit LCD screen allows you to set the desired pressure (PSI, KPa, BAR, KG/CM²) using the "+" and "-" buttons. The screen displays the set pressure and monitors real-time pressure, automatically shutting off once the target pressure is reached.
4.4. LED Work Light
A built-in LED light provides illumination for nighttime inflation or use in low-light conditions.
4.5. Dual State Inflation
The pump operates in two stages:
- Fast Inflation Mode: Below 1 PSI, the pump operates at a higher volume for rapid initial inflation.
- High-Pressure Mode: Above 1 PSI, the pump switches to a high-pressure mode to reach the desired PSI, which may involve increased noise.

Image: Illustration of the pump in fast inflation mode for an air mattress and high-pressure mode for a paddle board.
4.6. Wide Application with 6 Nozzles
Includes 6 different nozzles to accommodate most high-pressure inflatable devices, such as stand-up paddle boards, air mattresses, kayaks, boats, arches, pools, and tents.

Image: The pump's integrated storage box displaying the six included inflation nozzles.

Image: The Mellif Cordless Paddle Board Pump, highlighting its portable design, inflation port, and deflation port.
5. Setup
5.1. Powering the Pump
- Using a Milwaukee 18V Battery (Not Included):
- Ensure the battery is fully charged.
- Align the battery with the battery slot on the pump and slide it in until it clicks securely into place.
- To remove, press the battery release button and slide the battery out.
- Using the 12V DC Car Connector:
- Plug the 12V DC car power cord into the designated port on the pump.
- Insert the other end of the car power cord into your vehicle's 12V accessory socket (cigarette lighter socket).
5.2. Attaching the Hose and Nozzle
- Identify the correct nozzle for your inflatable item from the 6 included options.
- Attach the chosen nozzle to the end of the inflation hose. Ensure it is securely fastened.
- For inflation, connect the other end of the hose to the Inflation Port on the pump (typically marked with an arrow pointing outwards or "INFLATE").
- For deflation, connect the hose to the Deflation Port on the pump (typically marked with an arrow pointing inwards or "DEFLATE").

Image: A visual guide demonstrating how to connect the various nozzles to the pump's hose.
6. Operating Instructions
6.1. Inflation
- Ensure the pump is powered and the hose with the correct nozzle is connected to the Inflation Port.
- Connect the nozzle securely to the valve of your inflatable item.
- Press the power button (⏻) to turn on the pump. The LCD screen will illuminate.
- Use the "UNIT" button to select your desired pressure unit (PSI, KPa, BAR, KG/CM²).
- Use the "+" and "-" buttons to set the target pressure. Refer to your inflatable item's manufacturer recommendations for the correct pressure.
- Press the "START/STOP" button (▶/■) to begin inflation.
- The pump will operate in fast inflation mode initially, then switch to high-pressure mode. The LCD screen will display the real-time pressure.
- The pump will automatically shut off once the preset pressure is reached.
- Disconnect the nozzle from the inflatable item and turn off the pump.
6.2. Deflation
- Ensure the pump is powered and the hose with the correct nozzle is connected to the Deflation Port.
- Connect the nozzle securely to the valve of your inflatable item.
- Press the power button (⏻) to turn on the pump.
- Press the "DEFLATE" button (often indicated by an arrow pointing inwards or a specific deflate icon) to begin deflation.
- Allow the pump to run until the inflatable item is sufficiently deflated.
- Disconnect the nozzle and turn off the pump.
6.3. Using the LED Work Light
Press the dedicated light button (often indicated by a light bulb icon) to turn the LED work light on or off. This is useful for operating the pump in low-light conditions.
7. Maintenance
- Cleaning: Wipe the pump exterior with a soft, dry cloth. Do not use harsh chemicals or abrasive cleaners. Ensure no water enters the pump.
- Storage: Store the pump in a cool, dry place away from direct sunlight and extreme temperatures. Keep all nozzles and the hose stored neatly in the integrated storage box to prevent loss or damage.
- Battery Care: If using a Milwaukee 18V battery, remove it from the pump when not in use for extended periods. Store batteries in a cool, dry place and charge them periodically if not used regularly.
- Hose and Nozzles: Inspect the hose and nozzles regularly for any signs of wear, cracks, or damage. Replace if necessary to ensure optimal performance and prevent air leaks.

Image: An internal view of the pump highlighting its efficient heat dissipation design with airflow indicators.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Pump does not turn on. |
|
|
| Pump inflates slowly or not to desired pressure. |
|
|
| Digital display is not working or unreadable. |
|
|
| Pump is excessively noisy. |
|
|
9. Specifications
| Model Number | MFPBPO2-JY |
| Brand | Mellif |
| Power Source | Milwaukee 18V Battery (not included) / 12V DC Car Connector |
| Maximum Pressure | 20 PSI (Pound per Square Inch) |
| Air Flow Capacity | 13 CFM (Cubic Feet Per Minute) |
| Operation Mode | Automatic (with auto shut-off) |
| Product Dimensions | 30L x 25W x 14H Centimetres (approx. 9 x 9 x 5 inches) |
| Item Weight | 1.81 kg (approx. 4 Pounds) |
| Material | Plastic |
| Included Components | Pump, 12V DC car power cord, adapter connector, inflation hose, 6 inflation nozzles |
10. Warranty and Support
Warranty: This Mellif product comes with a 5-year warranty from the date of purchase, covering manufacturing defects. Please retain your proof of purchase for warranty claims.
Customer Support: For technical assistance, troubleshooting, or warranty inquiries, please contact Mellif customer support:
- Email: info@mellif-tools.com
- Please visit the official Mellif website for additional support resources and product information.
11. Wide Application Examples
The Mellif Cordless Paddle Board Pump is versatile and can be used for a variety of inflatable items. Here are some common applications:

Efficiently inflates SUPs to their optimal pressure for stability and performance.

Quickly sets up inflatable camping tents.

Ideal for inflating small boats and kayaks for water activities.

Convenient for inflating various sizes of inflatable swimming pools.

Quickly inflates recreational swimming rings and floats.

Assists in inflating surfing kites for water sports enthusiasts.





