Introduction
Thank you for choosing the ETENWOLF S1 Portable Tire Inflator. This compact and powerful device is designed to provide quick and efficient inflation for a variety of items, including car tires, motorcycle tires, bicycle tires, and sports balls. With its advanced features and robust design, the S1 ensures reliable performance wherever you go.

Image: ETENWOLF S1 Portable Tire Inflator, showcasing its compact design and digital display.
Package Contents
Please check the box for the following items:
- S1 Multi-Function Tire Inflator x1
- A-C charging cable x1
- T-shaped quick connector x1
- French copper adapter x1
- Ball needle x1
- Storage Bag x1
- Instruction manual x1

Image: All items included in the ETENWOLF S1 package: inflator, charging cable, various adapters, and storage bag.
Specifications
| Feature | Detail |
|---|---|
| Model | S1 |
| Battery Capacity | 5200mAh (2 x 2600mAh Lithium) |
| Inflation Speed | 20 L/min @0PSI (0.65 CFM @0PSI) |
| Maximum Pressure | 160 PSI (11.0 bar) |
| Duty Cycle | 100% (continuous operation) |
| Charging Port | USB-C (supports 10W PD fast charging) |
| Special Features | Digital Display, Built-in Work Light (Illumination, Strobe, SOS), Integrated Air Hose Storage, 4 Preset Modes |
| Item Weight | 0.61 kg |
| Item Dimensions (L x W x H) | 3.74 x 2.4 x 6.97 inches |
| Noise Level | ≤ 85 dB |
| Operating Temperature | -4°F to 165°F (-20°C to 74°C) |

Image: Overview of the S1's capabilities including 160PSI max pressure, 20 L/min flow rate, lighting, low noise, 100% duty cycle, and 5200mAh battery, with recommended PSI for various items.
Safety Information
To ensure safe operation and prolong the life of your ETENWOLF S1, please observe the following safety guidelines:
- Do not leave the inflator unattended during operation.
- Keep out of reach of children.
- Avoid exposing the device to extreme temperatures or direct sunlight for extended periods.
- Do not operate the inflator if it is damaged or malfunctioning.
- Ensure the inflation hose is securely connected to prevent air leaks and potential injury.
- Always check the recommended pressure for the item you are inflating to avoid over-inflation.
- The device features a Multi-Shield Protection System for enhanced safety:

Image: Diagram illustrating the Multi-Shield Protection System, including Motor Protection, Low/High-Temp Charging/Discharge Protection, Overvoltage Protection, Cell Protection, and High-Voltage Protection.
Setup and Charging
Initial Charging
Before first use, fully charge the ETENWOLF S1. Connect the provided A-C charging cable to the USB-C port on the inflator and to a compatible USB power adapter (not included). The digital display will indicate charging status.
Attaching the Hose and Adapters
The inflator features integrated air hose storage. Pull out the hose when ready to use. Select the appropriate adapter for your item:
- T-shaped quick connector: For car and motorcycle tires.
- French copper adapter: For bicycle tires with French valves.
- Ball needle: For sports balls.
Securely screw the chosen adapter onto the inflation hose.
Operating Instructions
The ETENWOLF S1 offers both preset modes and a custom mode for inflation. Follow these steps for operation:

Image: Visual guide for the 4-step inflation process: Connect & Power On, Set Mode & Unit, Start Inflating, Auto Stop.
- Connect & Power On:
- Attach the inflation hose with the correct adapter to the item you wish to inflate.
- Press the power button to turn on the inflator. The digital display will show the current pressure.
- Set Mode & Unit:
- Press the mode button (often indicated by a circular arrow or mode icon) to cycle through the preset modes: Car, Motorcycle, Bicycle, Ball, and Custom.
- Press the unit button (if available, or cycle through modes) to select your desired pressure unit (PSI, KPA, BAR).

Image: Detailed diagram of the 4 inflation modes: Bicycle (45 PSI, French Valve Adapter), Ball (7-9 PSI, Ball Needle), Car (32-41 PSI, T-shaped quick connector), and Custom (3-160 PSI).
Preset Modes and Recommended Pressures:
- Bicycle Mode: Default 45 PSI (approx. 120 seconds for a bicycle tire).
- Ball Mode: Default 7-9 PSI (approx. 10 seconds for a basketball).
- Car Mode: Default 32-41 PSI (approx. 107 seconds for a 195 car tire).
- Custom Mode: Allows setting pressure from 3-160 PSI. Default is 30 PSI.
- Start Inflating:
- Use the '+' and '-' buttons to adjust the target pressure to your desired value.
- Press the power button again to start inflation.
- Auto Stop:
- The inflator will automatically stop once the preset target pressure is reached.
Using the LED Work Light
The ETENWOLF S1 includes a powerful LED work light for use in low-light conditions.
- Press the light button (often indicated by a sun/star icon) once for constant illumination.
- Press again to activate the slow-speed strobe light.
- Press a third time for the SOS light mode.
- Press a fourth time to turn off the light.

Image: Demonstrates the LED Strong Lighting feature with Illumination, Slow-Speed Strobe, and SOS light modes.
Maintenance
- Cleaning: Wipe the device with a soft, damp cloth. Do not use harsh chemicals or abrasive cleaners.
- Storage: Store the inflator in a cool, dry place, away from direct sunlight and extreme temperatures. Ensure the hose is properly stored in its integrated compartment.
- Battery Care: For optimal battery life, charge the device fully every 3-6 months if not in regular use. Avoid completely draining the battery before recharging.
- Adapter Care: Keep all adapters clean and free from debris to ensure a proper seal during inflation.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Inflator does not turn on. | Low battery or no charge. | Charge the inflator using the provided USB-C cable. |
| Inflator starts but no air comes out or inflation is slow. | Hose not securely connected; adapter blocked; incorrect mode/pressure setting. | Ensure hose and adapter are tightly connected. Check for blockages in the adapter. Verify correct mode and target pressure. |
| Device stops unexpectedly during inflation. | Target pressure reached; overheating; low battery. | Check if target pressure is met. Allow device to cool down if hot. Recharge battery. |
| Inaccurate pressure reading. | Loose connection; sensor issue. | Ensure a tight connection. If problem persists, contact customer support. |
User Tips
- Always ensure the nozzle is securely attached to the valve stem to prevent air leakage and ensure accurate pressure readings.
- Regularly check your tire pressure, not just when they appear low, to maintain optimal vehicle performance and safety.
- For best results and to avoid interruptions, fully charge your ETENWOLF S1 before embarking on long trips or when you anticipate needing it.
- Utilize the specific preset modes (Car, Motorcycle, Bicycle, Ball) for convenience and accuracy, as they come with recommended pressure ranges.
- The built-in LED light is a valuable feature for emergencies or when inflating in dark conditions. Don't forget to use its illumination, strobe, or SOS functions as needed.
Warranty and Support
ETENWOLF products are manufactured to the highest quality standards. For warranty information, technical support, or any inquiries regarding your S1 Portable Tire Inflator, please contact ETENWOLF Official Store customer service.
We are committed to providing you with professional and efficient service!