Introduction
The ETENWOLF S1 is a portable, cordless tire inflator designed for convenient and efficient inflation of various items, including car tires, motorcycle tires, bicycle tires, and sports balls. It features a maximum pressure of 160 PSI, a 5200mAh battery, and an automatic stop function for precise inflation. This manual provides essential information for the safe and effective use of your ETENWOLF S1.

Image: The ETENWOLF S1 Portable Tire Inflator, showcasing its compact design.
What's Included
Verify that all items are present in the package:
- 1 × ETENWOLF S1 Tire Inflator
- 1 × Air Chuck
- 1 × Needle Adapter (for sports balls)
- 1 × Presta Adapter (for bicycle valves)
- 1 × USB-C Charging Cable
- 1 × Storage Bag
- 1 × User Manual (this document)

Image: All components included with the ETENWOLF S1, including the inflator, various adapters, charging cable, and storage bag.
Product Features
- Ultra-Fast Inflation: Equipped with a high-performance motor, the S1 delivers up to 160 PSI and 20L/min airflow, inflating a 195/65R15 car tire from 30 to 35 PSI in approximately 60 seconds.
- Powerful Battery Life: The 5200mAh high-capacity battery and dedicated cooling system allow for inflation of multiple items on a single charge. For example, up to 17 car tires, 60 motorcycle tires, or 80 sports balls.
- Portable and Well-Designed: The air hose and adapters are stored neatly within the unit, preventing tangling and loss. Its compact size allows for easy transport in a backpack or vehicle.
- Easy-to-Use Digital Display: Features a bright LED display with real-time pressure monitoring and 4 preset modes (car, motorcycle, bicycle, ball), plus a custom mode. Easily switch between PSI, kPa, BAR, and KG/CM units.
- Automatic Stop Function: The inflator automatically stops when the target pressure is reached, preventing over-inflation.
- Built-in LED Flashlight: Provides illumination for nighttime use and roadside emergencies, with multiple modes including Strobe and SOS.

Image: The ETENWOLF S1 connected to a car tire, demonstrating its rapid inflation capability.

Image: An internal diagram highlighting the 5200mAh battery and cooling system for extended operation.

Image: The rear of the ETENWOLF S1 showing the integrated storage for the air hose and adapters.

Image: Close-up of the ETENWOLF S1's digital screen displaying pressure readings and mode selections.

Image: The ETENWOLF S1's integrated LED flashlight illuminating a tire in a dark environment.
Setup
- Charge the Device: Before first use, fully charge the ETENWOLF S1 using the provided USB-C charging cable and a compatible USB power adapter (not included). The battery indicator on the display will show charging status.
- Select Appropriate Adapter: Identify the correct adapter for the item you wish to inflate (e.g., standard air chuck for car tires, needle adapter for balls, Presta adapter for certain bicycle valves).
- Attach Hose and Adapter: Connect the air hose to the inflator. If needed, attach the selected adapter to the end of the air hose.
Operating Instructions
- Power On: Press and hold the power button to turn on the inflator. The display will light up, showing the current pressure and selected mode.
- Select Mode: Press the mode button to cycle through the preset modes: Car, Motorcycle, Bicycle, and Ball. Each mode has a default pressure setting.
- Set Target Pressure: Use the '+' and '-' buttons to adjust the target pressure. The device will remember your last custom setting for each mode.
- Connect to Item: Securely attach the air chuck (with appropriate adapter if necessary) to the valve stem of the item to be inflated. Ensure a tight seal to prevent air leakage. The display will show the current pressure of the item.
- Start Inflation: Press the start button to begin inflation. The inflator will operate until the preset target pressure is reached, then automatically shut off.
- Disconnect: Once inflation is complete and the device has stopped, quickly disconnect the air chuck from the valve stem.
- Power Off: Press and hold the power button to turn off the inflator.

Image: The ETENWOLF S1's display showing icons for car, motorcycle, bicycle, and ball inflation modes.
Maintenance
- Cleaning: Wipe the exterior of the inflator with a soft, damp cloth. Do not use harsh chemicals or abrasive cleaners.
- Storage: Store the inflator and its accessories in the provided storage bag in a cool, dry place, away from direct sunlight and extreme temperatures.
- Battery Care: To prolong battery life, charge the device fully every 3-6 months if not in regular use. Avoid completely draining the battery for extended periods.
- Hose and Adapters: Inspect the air hose and adapters regularly for any signs of wear or damage. Replace if necessary to ensure proper function and seal.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Inflator does not turn on. | Low battery. | Charge the device fully. |
| Inflation is slow or not reaching target pressure. | Loose connection to valve stem; damaged hose/adapter; item requires higher pressure than device capacity. | Ensure a tight connection. Check hose and adapters for damage. Verify the item's maximum pressure is within the S1's 160 PSI limit. |
| Inaccurate pressure reading. | Improper connection; device malfunction. | Reconnect the air chuck securely. If the issue persists, contact customer support. |
| Device overheats. | Extended continuous use. | Allow the device to cool down before further use. The built-in cooling system helps manage temperature during normal operation. |
Specifications
| Feature | Specification |
|---|---|
| Brand | ETENWOLF |
| Model Number | S1 |
| Maximum Pressure | 160 PSI |
| Air Flow Capacity | 20 liters per minute |
| Battery Capacity | 5200mAh |
| Power Source | Battery Powered |
| Voltage | 12 volts |
| Noise Level | 85 dB |
| Item Weight | 0.65 kg |
| Item Dimensions (L x W x H) | 2"L x 2.6"W x 6.6"H |
| Material Type | Metal, Plastic, Rubber |
| Additional Features | Automatic Stop, Cordless, LED Light, Portable, Quick Inflation |
Warranty and Support
The ETENWOLF S1 Portable Tire Inflator Air Compressor comes with a 2-year manufacturer's warranty. For warranty claims, technical support, or any inquiries regarding your product, please refer to the contact information provided on the ETENWOLF official website or the contact details included in your product packaging.
Please retain your proof of purchase for warranty validation.





