Product Information
- Product Model: P5 Smart Air Pump
- Battery Capacity: 3.7V/5000mAh
- USB-C Input: 5V/2A
- USB-A Output: 5V/2A
- Battery Power: 18.5Wh/7.4V
- Pressure: 2~150PSI / 0.1~10.3BAR
- Working Temperature: -10 — 45°C
- Product Net Weight: 500G
- Product Size: 162.5*68*38MM
Product Packaging
The LEXIN Smart Pump P5 package includes:
- Smart Air Pump (device with display showing PSI, BAR, KPA, Kg/cm² and buttons for +, -, power, mode, unit)
- Valve Needle for Balls
- Presta Valve Adapter
- USB-C Charging Cable
- User Guide
- Storage Bag
- American Style Quick Connect Trachea
Function Introduction
The Smart Pump P5 features several key components and indicators:
- Tracheal Interface: Connection point for the air hose.
- USB-C Input Port: For charging the device.
- USB-A Output Port: For using the device as a power bank.
- LED Light: Provides illumination.
- Real-time Air Pressure: Displays the current pressure.
- Display of Use Scene: Shows the selected inflation mode (e.g., car, bike, ball).
- Preset Air Pressure: Shows the target pressure value.
- Air Pressure Unit: Indicates the current unit (PSI, BAR, KPA, Kg/cm²).
- Battery Indicator: Shows the remaining battery level.
- Mode Setting / LED Light Button (❖): Short press to cycle through scene modes; long press to turn LED light on/off.
- Preset + Button: Increases preset air pressure.
- Preset - Button: Decreases preset air pressure.
- Power Button (⏻): Turns the device on/off, starts/stops inflation.
- Air Pressure Unit Switching Button (U): Changes the pressure unit.
Device Display Overview: The screen shows a large digital readout for pressure, smaller indicators for units (PSI, BAR, KPA, Kg/cm²), and icons representing different use scenes (e.g., car, motorcycle, bicycle, ball, custom). Below the screen are buttons for +, -, power, mode/LED, and unit switching.
Basic Operation
Power On/Off
Power On: Press and hold the power button (⏻) for 3 seconds to turn on the air pump.
Power Off: Press and hold the power button (⏻) for 3 seconds to turn off the air pump.
Visual representation: A hand icon pressing and holding the power button (⏻) on the device display for 3 seconds.
Method of Pumping
In the power-on state, short press the power button (⏻) to start inflation. The pump will automatically stop inflating when the preset air pressure value is reached.
Visual representation: A hand icon short pressing the power button (⏻) on the device display to start inflation.
Battery Indicator
Different colors of the battery indicator show different battery levels:
- Green: 65%~100%
- Yellow: 25%~65%
- Red: 10%~25%
- Red Flash: Below 10% (Low battery alert, requires charging before further use).
Visual representation: The battery icon on the device display changes color to indicate charge level.
Charging Method
The device uses a USB-C charging input (5V/2A). Use a charging cable and connect it with a power adapter to charge the air pump.
Battery indicator when charging:
- Flashing Green Light: Charging
- Solid Green Light: Fully charged
Note: The air pump cannot be used during charging. The charging cable and adapter are not included with the product.
Visual representation: A diagram showing the Smart Pump P5 connected via a USB-C cable to a power adapter, indicating the charging process.
Air Pressure Unit Switching
Short press the U icon button to switch the air pressure display unit.
Unit conversion formula: 1 BAR = 14.5 PSI
LED Light
Press and hold the ❖ button until the LED light turns on. Long press it again to turn off.
Preset Air Pressure
Short press the +/- button: Adjusts the preset air pressure value by 0.5 PSI per press.
Long press +/- button: Allows for quick adjustment of the preset air pressure value.
Note: The device will automatically save the scene mode and the preset air pressure value. The next time the pump is used, only the scene needs to be switched, and the preset air pressure value will be automatically set.
Check The Air Pressure
When the air pump is in standby status, after the trachea is connected to the air pressure detection object, the upper half of the air pump display screen will show the present measured air pressure value.
Example Display:
Measured air pressure: 16.5 PSI
Preset air pressure: 38.0 PSI
The display shows two main numerical values: the top one for measured air pressure and the bottom one for preset air pressure, along with unit indicators (PSI, BAR, KPA, Kg/cm²).
Pressure Reset
After power on, if the trachea is not connected to the inflatable object and the measured pressure value is not 0.0, press the + and - buttons at the same time for 2 seconds. The display will return to normal (all lights on) after this action.
Visual representation: A hand icon pressing both the '+' and '-' buttons simultaneously on the device display for 2 seconds.
Note: The default air pressure value of this product has been reset to zero. Due to differences in altitude or sensor, if the measured air pressure value is not zero, manual reset can improve air pressure accuracy. Calibration is not recommended at high temperatures.
Application Scene Switching
Short press the ❖ button to select 5 inflatable scene modes:
| Scene Mode | Preset Default Value | Adjustable Range |
|---|---|---|
| ⚽ Balls | 8 PSI | 2-15 PSI |
| ? Bike | 38 PSI | 2-150 PSI |
| ?️ Motorcycle | 2.7 BAR | 0.1-3.7 BAR |
| ? Motor Vehicle | 2.4 BAR | 0.1-4.4 BAR |
| ⚙️ Customize | 100 PSI | 2-150 PSI |
Verify Inflating Pressure
To ensure safety, users should check the inflation pressure required by the item being inflated according to its instruction manual before inflating. This helps avoid personal injury from explosion caused by excessive inflation.
Car Tires
The pressure range for car tires is marked on the side of the tire. Inflation pressure is related to load weight. For more detailed air pressure recommendations, refer to the manual of the relevant vehicle.
Visual representation: A tire icon.
Motorcycle Tires
The pressure range for motorcycle tires is marked on the side of the tire. Inflation pressure is related to load weight. For more detailed air pressure recommendations, refer to the manual of the relevant vehicle.
Visual representation: A motorcycle wheel icon.
Bicycle Tires
The pressure range for bicycle tires is marked on the side of the tire. Inflation pressure is related to load weight. For more detailed air pressure recommendations, refer to the manual of the relevant vehicle.
Visual representation: A bicycle wheel icon.
Balls
The inflation pressure for footballs, basketballs, volleyballs, and other kinds of balls is marked around the gas-filled pore. Inflation pressure is related to load weight. For more detailed air pressure recommendations, refer to the manual of the relevant ball.
Visual representation: A soccer ball icon.
Connect The Air Trachea to The Air Valve
Schrader Valves
Mountain bikes, electric bikes, motorcycles, and motor vehicles are typically equipped with Schrader valves.
Inflation: Connect the Schrader valve to the American-style quick-connect trachea to inflate.
Visual representation: A diagram showing the Smart Pump P5 connected via its American quick-connect trachea to a Schrader valve. The Schrader valve is depicted as a standard tire valve stem.
Presta Valves
When inflating road bikes and some mountain bikes, a Presta valve adapter is needed.
Inflation Steps:
- Connect the Presta valve adapter to the Schrader valve of the high-pressure air trachea.
- Unscrew the cap of the Presta valve.
- Connect the Presta valve to the adapter to inflate.
Visual representation: A diagram showing the Smart Pump P5 connected via its American quick-connect trachea to a Presta valve adapter, which is then connected to a Presta valve. The Presta valve is depicted with its cap unscrewed.
Ball Valves
Ball valves are needed when inflating balls such as basketballs and soccer balls.
Inflation: After connecting the ball valve with the Schrader valve of the air trachea, insert the ball valve into the gas-filled pore on the ball to inflate.
Visual representation: A diagram showing the Smart Pump P5 connected via its American quick-connect trachea to a ball valve, which is then inserted into the gas-filled pore of a ball (represented by a soccer ball icon).
Power Bank Function
The battery capacity of the smart air pump is 5000mAh. The 5V/2A USB-A output interface can be used to charge electronic devices such as mobile phones.
Note: Inflation and charging cannot be performed at the same time.
Visual representation: A diagram showing the Smart Pump P5 with a smartphone connected to its USB-A output port, illustrating its use as a power bank.
Air Pressure Values of Common Articles
| Product Category | Product Type | Pressure Range |
|---|---|---|
| Bike | Bike for kids | 18~30 PSI |
| 10-16 Inch Tires | 30~45 PSI | |
| 20-30 Inch Tires | 38~55 PSI | |
| Bike | Road Bike | 100~120 PSI |
| Balance Bike | 40~60 PSI | |
| Wheelchair | 30~45 PSI | |
| Motorcycle/Electric Motorcycle | Motorcycle/Electric Motorcycle | 1.8~3.0 BAR |
| Motor Vehicle | Cars | 2.2~2.8 BAR |
| Ball | Kids Toy Ball | 3~6 PSI |
| Basketball | 7~9 PSI | |
| Football | 10~12 PSI | |
| Volleyball | 4~6 PSI | |
| Rugby Ball | 10~14 PSI |
Attentive (Safety Precautions)
- Do not leave the device unattended during inflation.
- Do not place the air pump near inflammable and explosive materials.
- Try to avoid sand invasion and falling.
- Do not place the product in a place that is too cold, too hot, or humid.
- This product is equipped with a built-in lithium battery; it is forbidden to throw it into fire or discard it at will.
- Keep this product out of the reach of children.
High Temperature Safety Precautions
When the trachea is unscrewed, the trachea and the trachea joint will generate high temperature due to long-time operation. Avoid touching these parts with bare hands for a long time.
Visual representation: A diagram showing the air hose and its connection point to the pump, with a warning symbol (triangle with exclamation mark) and text indicating "High temperature".
Troubleshooting
| Problems | Exclusion Approach |
|---|---|
| Inflate too slow |
|
| Unable to inflate |
|
| Unable to increase or decrease the preset pressure value | Check if the pump is in correct inflation mode. Select the custom mode to adjust the preset value in the range of 3-150 PSI. |
| Inflates properly but pressure value shows zero |
|
| After tightening the air valve, the air pump has automatically shut down | It will automatically shut down after 3 minutes. Long press the power button to turn it on again. |
| There is a leak when connecting the trachea | Tighten the trachea. |
| The color of the power indicator light in inflating state is inconsistent with that in the standby state | The lithium battery has a significant voltage drop during the discharge process, which leads to the phenomenon that the color of the indicator light in charging state and the standby state are inconsistent. This phenomenon is not a fault. |
| The power indicator does not light up after charging | Replace a safe and compliant charging cable and adapter to recharge it. |
