Introduction
Thank you for choosing the Evekas Portable Tire Inflator. This device is a compact and efficient air compressor designed for convenient inflation of tires on cars, motorcycles, bicycles, and various sports balls. It features a digital pressure gauge, automatic shut-off, and an integrated LED light for enhanced usability. Please read this manual thoroughly before use to ensure proper operation and maintenance.
Safety Information
To ensure safe operation and prevent damage, please observe the following safety precautions:
- Read all instructions before operating the device.
- Keep the device out of reach of children.
- Do not leave the inflator unattended while it is operating.
- Avoid over-inflating tires or other items. Always refer to the recommended pressure for the item being inflated.
- Do not operate the device in wet conditions or near flammable liquids or gases.
- Store the inflator in a cool, dry place when not in use.
- Do not attempt to disassemble or modify the device. Contact customer support for any repairs.
- The device may become warm during prolonged use. Allow it to cool down before storing.
Package Contents
Verify that all items are present in your package:
- Evekas Portable Tire Inflator (Air Pump) x 1
- Storage Bag x 1
- Air Tube x 1
- Type-C Charging Cable x 1
- Instruction Manual x 1
- Accessory Nozzles (various types for different valves)

Figure 1: Package Contents
Product Features
- Compact and Portable: Weighing only 0.9 pounds, its small size allows for easy storage and transport.
- Efficient Inflation: Equipped with a powerful motor, it delivers up to 150 PSI, capable of inflating a standard car tire in minutes.
- Precise Inflation with Auto Shut-Off: Features 5 preset inflation modes and supports 4 pressure units (PSI, BAR, KPA, Kg/cm²). The LCD display shows real-time pressure, and the device automatically stops when the preset value is reached, preventing overinflation.
- Long Battery Life: A built-in 6000mAh rechargeable lithium battery provides ample power for multiple inflation tasks.
- Multifunctional LED Light: Includes an LED light with Normal, Emergency, and Strobe modes for use in dark environments or for signaling.
- Power Bank Functionality: Features a Type-C charging port and a USB output port, allowing it to serve as an emergency power source for electronic devices.
Setup
1. Charging the Device
Before first use, fully charge the tire inflator. Connect the provided Type-C charging cable to the device's Type-C port and plug the other end into a compatible USB power adapter (not included).

Figure 2: Charging and Battery Life
2. Attaching the Air Hose
Screw the air tube securely into the inflation port on the top of the device.
Operating Instructions
1. Powering On/Off
Press and hold the power button (usually the central button) to turn the device on or off.
2. Selecting Inflation Mode and Pressure Unit
Once powered on, the digital display will show the current pressure. Use the mode button (often labeled 'M' or with an icon) to cycle through the 5 preset inflation modes: Car, Motorcycle, Bike, Ball, and Custom. Each mode has a default pressure range. You can also press the unit button (if available, or cycle through modes) to change pressure units (PSI, BAR, KPA, Kg/cm²).

Figure 3: Digital Display and Auto Shut-Off Feature
3. Setting Target Pressure
Use the '+' and '-' buttons to adjust the target pressure to your desired value. The display will show the target pressure as you adjust it.
4. Connecting to the Valve
Screw the air tube's connector onto the valve stem of the item you wish to inflate. Ensure a tight seal to prevent air leakage.
5. Starting and Stopping Inflation
Press the power button (or a dedicated start button) to begin inflation. The device will automatically stop once the preset target pressure is reached. You can manually stop inflation at any time by pressing the power button again.

Figure 4: Quick Operation Steps
6. Using the LED Light
Press the LED light button (if separate, or a long press on a specific button) to cycle through the light modes: Normal, Emergency (flashing), and Strobe. This is useful for nighttime inflation or as a warning signal.

Figure 5: Built-in LED Light Modes
7. Using as a Power Bank
Connect your electronic device to the USB output port on the inflator using a compatible USB cable to charge it.
Maintenance
- Cleaning: Wipe the device 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 at least once every three months if not in regular use. Avoid fully discharging the battery frequently.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Device does not turn on. | Low battery. | Charge the device fully. |
| Device does not turn on. | Power button not pressed correctly. | Press and hold the power button for 2-3 seconds. |
| Inflator is not inflating. | Air tube not securely connected. | Ensure the air tube is tightly screwed into the device and the valve stem. |
| Inflator is not inflating. | Target pressure is already met or set too low. | Check the current pressure reading and adjust the target pressure if necessary. |
| Inaccurate pressure reading. | Loose connection to valve stem. | Ensure the air tube is securely attached to the valve stem. |
| Device overheats and shuts off. | Prolonged continuous operation. | Allow the device to cool down for at least 10-15 minutes before resuming use. Avoid continuous operation for more than 10 minutes. |
Specifications
- Brand: Evekas
- Model: ST17
- Item Weight: 0.88 Pounds (approximately 14.1 ounces)
- Maximum Pressure: 150 PSI
- Battery Capacity: 6000mAh Lithium Ion (2 batteries included)
- Charging Port: Type-C
- Output Port: USB (for power bank function)
- Special Features: Automatic Shut-Off, LED Light, Portable Design
- Package Dimensions: 5.67 x 3.31 x 3.07 inches
- Color: Red
Warranty
This Evekas Portable Tire Inflator comes with a 1 Year Manufacturer Warranty from the date of purchase. This warranty covers manufacturing defects under normal use. It does not cover damage caused by misuse, accidents, unauthorized modifications, or improper maintenance. Please retain your proof of purchase for warranty claims.
Support
If you encounter any issues or have questions regarding your Evekas Portable Tire Inflator that are not addressed in this manual, please contact the seller or manufacturer's customer support for assistance. Provide your model number (ST17) and a detailed description of the issue when contacting support.