Introduction
This manual provides instructions for the safe and effective operation of your Kefkafl Jump Starter 5000A with 150 PSI Tire Inflator. This multi-functional device is designed to jump start 12V vehicles, inflate tires, serve as a portable power bank, and provide illumination with its integrated LED light. Please read this manual thoroughly before use and retain it for future reference.
Safety Information
Always observe the following safety precautions to prevent injury or damage to the device or vehicle:
- Do not attempt to jump start a frozen battery.
- Ensure proper polarity when connecting jumper cables (red to positive, black to negative). Incorrect connection can cause sparks or damage.
- Do not allow the red and black clamps to touch each other once connected to the jump starter.
- Operate in a well-ventilated area.
- Keep out of reach of children.
- Do not expose the device to rain or extreme temperatures outside its operating range.
- Disconnect the air hose from the tire valve immediately after inflation is complete to prevent over-inflation.
- Wear eye protection when operating the device.
Package Contents
Verify that all items are present in your package:
- 1 x Kefkafl Jump Starter with Air Compressor (Model Q10)
- 1 x Smart Jump Cable
- 1 x USB-C Charging Cable
- 1 x Air Hose
- 3 x Air Nozzles
- 1 x User Manual
- 1 x Storage Bag
Product Overview
The Kefkafl Q10 integrates multiple functions into a compact design. Key components include:
- Main Unit: Houses the battery, control panel, and ports.
- LED Display Screen: Shows battery level, tire pressure, and operating modes.
- Control Buttons: For power, mode selection, and inflation adjustments.
- Jump Start Port: For connecting the smart jump cable.
- Air Hose Port: For connecting the tire inflator hose.
- USB Output Ports: For charging external devices.
- USB-C Input Port: For charging the jump starter itself.
- LED Light: Integrated flashlight, SOS, and strobe functions.

Image: The large LED screen provides real-time display of power and inflation mode.
Setup
Initial Charging
Before first use, fully charge the jump starter. Connect the provided USB-C charging cable to the device's input port and a suitable USB power adapter (not included). The LED screen will indicate the charging status. A full charge ensures optimal performance.
Operating Instructions
1. Jump Starting a Vehicle
This device is suitable for 12V vehicles with up to 10.0L gas or 10.0L diesel engines.
- Ensure the jump starter has sufficient charge (at least 50%).
- Connect the smart jump cable to the jump start port on the device.
- Attach the red clamp to the positive (+) terminal of the vehicle's battery.
- Attach the black clamp to the negative (-) terminal of the vehicle's battery.
- Once connected, the smart cable's indicator light will confirm a safe connection.
- Start the vehicle's engine.
- Once the engine starts, immediately remove the smart jump cable from the vehicle battery, then disconnect it from the jump starter.

Image: The jump starter connected to a vehicle battery for emergency starting.
2. Using the Tire Inflator
The integrated air compressor can inflate tires up to 150 PSI.
- Connect the air hose to the air hose port on the device.
- Attach the other end of the air hose to the tire valve.
- Power on the device. The LED screen will display the current tire pressure.
- Use the control buttons to select the desired pressure unit (PSI, BAR, KPA, KG/cm²) and set the target pressure.
- Press the start button to begin inflation. The inflator will automatically stop when the target pressure is reached.
- Disconnect the air hose from the tire valve and then from the device.

Image: The portable inflator connected to a car tire, demonstrating its use.
3. Using as a Power Bank
The device features USB output ports to charge mobile phones, tablets, and other USB-powered devices.
- Connect your device's charging cable to one of the USB output ports on the jump starter.
- The jump starter will automatically begin charging your device.

Image: The jump starter functioning as a portable power bank, charging two smartphones.
4. Using the LED Light
The integrated LED light offers multiple modes for various situations.
- Press the light button once for constant flashlight mode.
- Press again for SOS signal mode (flashing Morse code for SOS).
- Press a third time for strobe light mode.
- Press a fourth time to turn off the light.

Image: The jump starter's 400 Lumen LED light in operation, highlighting its flashlight, strobe, and SOS functions.
Maintenance
Charging
To maintain battery health, fully charge the jump starter every 3-6 months, even if not in use. This prevents deep discharge and prolongs the battery's lifespan.
Storage
Store the device in a cool, dry place, away from direct sunlight and extreme temperatures. Ensure all cables and accessories are neatly stored in the provided bag.
Troubleshooting
- Device not turning on: Ensure the device is charged. If not, connect it to a charger.
- Vehicle not starting: Check that the smart jump cable is correctly connected to both the jump starter and the vehicle battery terminals (red to positive, black to negative). Ensure the jump starter has sufficient charge.
- Tire inflator not working: Verify the air hose is securely connected to both the device and the tire valve. Check for leaks in the hose. Ensure the device has sufficient charge.
- External device not charging: Ensure the USB cable is properly connected and the external device is compatible. Check the jump starter's battery level.
- Error message on screen: Refer to the specific error code (if any) or consult the support section. The device has multiple intelligent protections; an error may indicate an unsafe condition (e.g., reverse polarity).
Specifications
| Feature | Specification |
|---|---|
| Model | Q10 |
| Peak Amperage | 5000 Amps |
| Battery Capacity | 20000 Milliamp Hours (mAh) |
| Voltage | 12 Volts |
| Engine Compatibility | Up to 10.0L Gas / 10.0L Diesel |
| Inflator Pressure | 150 PSI (Max) |
| LED Light Output | 400 Lumens |
| Operating Temperature | -4°F to 140°F (-20°C to 60°C) |
| Item Weight | 1.31 kg |
Warranty and Support
Your Kefkafl Jump Starter comes with a 12-Month Warranty from the date of purchase. We also provide Lifetime Technical Support. If you encounter any issues or have questions regarding your product, please refer to the contact information provided with your purchase documentation or visit the official Kefkafl website for assistance.