Introduction
Thank you for choosing the CARSUN Portable Tire Inflator. This rechargeable electric air compressor is designed for convenient and efficient inflation of various items, including car tires, motorcycle tires, bicycle tires, and sports balls. Its compact, wireless design, digital display, and multi-functional features make it an essential tool for on-the-go inflation needs. Please read this manual thoroughly before use to ensure safe and optimal operation.
Safety Information
- Keep the device away from water and moisture.
- Do not operate the inflator near flammable liquids or gases.
- Ensure the correct pressure setting for the item being inflated to prevent over-inflation and potential damage or injury.
- Do not leave the inflator unattended while in operation.
- Keep out of reach of children.
- Avoid prolonged continuous operation to prevent overheating. Allow the device to cool down if it becomes hot.
- Use only the provided charging cable and accessories.
Package Contents
Verify that all items are present in your package:
- 1 x CARSUN Portable Inflator Pump
- 1 x Air Hose
- 1 x Presta Valve Adapter
- 1 x Ball Needle
- 1 x Swimming Ring Nozzle
- 1 x USB Charging Cable
- 1 x User Manual

Product Overview
The CARSUN Portable Tire Inflator features a clear digital display and intuitive controls for ease of use. It is designed to be wireless and highly portable.

Controls and Display:
- Digital Display: Shows current pressure in PSI, BAR, KPA, or kg/cm², and target pressure.
- Mode Selection Button: Cycles through preset inflation modes (bicycle, motorcycle, car, basketball).
- Power Button: Turns the device on/off and starts/stops inflation.
- '+' / '-' Buttons: Adjusts the target pressure.
- Light Button: Activates and cycles through lighting modes.
- Deflation Button: Releases air from the connected item.
- USB Port: For charging the device and for power bank functionality.

Setup
- Charge the Device: Before first use, fully charge the inflator using the provided USB cable. The battery indicator on the display will show charging status.
- Connect Air Hose: Screw the air hose securely into the inflation port on the top of the device.
- Select Adapter: Choose the appropriate nozzle adapter for the item you wish to inflate (e.g., Presta valve adapter for some bicycles, ball needle for sports balls, swimming ring nozzle for inflatables). Attach it to the end of the air hose.

Operating Instructions
1. Inflation
- Power On: Press and hold the Power button to turn on the inflator. The digital display will light up.
- Connect to Item: Connect the air hose with the selected adapter to the valve of the item you want to inflate. The display will show the current pressure.
- Select Mode: Press the Mode button to cycle through the preset inflation modes:
- Basketball: 8.0 PSI
- Bicycle: 50.0 PSI
- Motorcycle: 2.00 BAR (approx. 29 PSI)
- Car: 2.50 BAR (approx. 36 PSI)
- Adjust Target Pressure: Use the '+' and '-' buttons to fine-tune the desired target pressure.
- Start Inflation: Press the Power button again to start inflation. The inflator will automatically stop once the target pressure is reached.
- Disconnect: Once inflation is complete, disconnect the air hose from the item and then from the inflator.

2. Deflation Function
To quickly release air from an item, press the dedicated deflation button located on the side of the inflator. This allows for precise adjustment of air volume.

3. Lighting Modes
The inflator includes three lighting modes for convenience in low-light conditions or emergencies:
- Flashlight: Press and hold the Light button for the first time to turn on the steady white light.
- Alarm Light: Press and hold the Light button for the second time to activate the red, low-frequency strobe alarm light.
- SOS Distress Light: Press and hold the Light button for the third time to activate the red SOS distress strobe light.

4. Power Bank Function
The inflator can also serve as an emergency power bank to charge other USB-powered devices. Simply connect your device to the USB output port on the inflator using a compatible USB cable.

Charging the Device
To charge the CARSUN Portable Tire Inflator, connect the provided USB charging cable to the inflator's charging port and plug the other end into a standard USB power adapter (not included) or a computer USB port. The charging time is approximately 3 hours for a full charge.
Maintenance
- Cleaning: Wipe the exterior of the inflator with a soft, dry cloth. Do not use harsh chemicals or abrasive cleaners.
- Storage: Store the inflator and its accessories in a cool, dry place, away from direct sunlight and extreme temperatures.
- Battery Care: For optimal battery life, avoid fully discharging the battery frequently. Charge the device periodically if not used for extended periods.
Troubleshooting
- Device not turning on: Ensure the battery is charged. If not, connect it to a power source using the USB cable.
- Inflator not starting: Check if the air hose is securely connected to both the inflator and the item. Ensure a target pressure is set.
- Inaccurate pressure reading: Ensure the air hose connection is tight and there are no leaks. Recalibrate by turning the device off and on.
- Slow inflation: Check for blockages in the air hose or nozzle. Ensure the battery is sufficiently charged.
Specifications
| Feature | Specification |
|---|---|
| Brand Name | EARU |
| Item Type | PUMPS |
| Model Name | Portable Inflator Pump |
| Voltage | 12V (Rated Voltage: 7.4V) |
| Item Weight | 600g (Net weight: 471g) |
| Item Dimensions (L x W x H) | 16cm x 4.4cm x 6.6cm |
| Cylinder Specification | 19mm (19 cylinders) |
| Display Screen | Digital Display |
| Output Air Pressure | 150PSI |
| Rated Power | 70W |
| Rated Current | 9.5A |
| Battery Capacity | 2600mAh*2 |
| Charging Time | ≤3h |
| Continuous Working Time | 20min |
| Noise Level | 80dB |
| Other Functions | Lighting, Mobile Power Bank |
| Applicable Scenarios | Cars, motorcycles, bicycles, basketball, football, volleyball, inflatable beds, etc. |
| Product Packaging Size | 7.5 × 5.2 × 19.8cm |

User Tips
No specific user tips were available from reviews or Q&A for this product. However, general tips for portable inflators include:
- Always check the recommended pressure for your tires or inflatable items before use.
- Keep the inflator charged, especially before long trips or outdoor activities.
- Store all adapters together with the inflator to avoid misplacing them.
Warranty and Support
For warranty information, technical support, or any issues with your CARSUN Portable Tire Inflator, please contact the seller or manufacturer directly. Refer to your purchase documentation for specific contact details.





