Introduction
Thank you for choosing the LOKITHOR JA300 Jump Starter with Air Compressor. This multi-functional device is designed to provide reliable emergency power for vehicle jump-starting, tire inflation, and portable charging for electronic devices. Please read this manual thoroughly before use to ensure safe and optimal operation.
What's in the Box
Verify that all items are present in your package:
- JA300 Portable Car Battery Jump Starter Pack
- Battery Jumper Clamps
- Inflatable Hose
- Nozzle Adapters
- USB-C to USB-C Cable
- Accessories Storage bag
- User Manual (this document)
Image: Contents of the LOKITHOR JA300 package.
Product Overview and Features
The LOKITHOR JA300 is a versatile 4-in-1 device designed for automotive emergencies and portable power needs.
- Jump Starter: 1500A peak current, capable of restarting gasoline engines up to 7.0L and diesel engines up to 4.5L. Provides up to 30 jump starts on a single charge.
- Tire Inflator: Built-in 150 PSI air compressor with a digital screen, offering an airflow of 35L/Min. Features tire-pressure detection, preset value stopping, and unit switching (BAR/PSI).
- Power Bank: 45Wh capacity with USB 3.0 fast charging output (5V/3A, 9V/2A) for charging smartphones, tablets, and other USB devices.
- LED Flashlight: Integrated 300-lumen LED light with three modes: constant lighting, flash, and SOS.
- Safety Features: Equipped with a Battery Management System (BMS) providing multiple protections including short-circuit, over-current, reverse connection, over-heat, over-charging, and clip falling off protection. UL-2743 listed for enhanced safety.
- Heat Dissipation: Unique design with 3 large heat dissipation air outlets to improve performance and extend service life.
- Ultra-Long Standby: Very low standby power (0.21mAh) allows for up to 720 days of standby time on a full charge.
Image: The LOKITHOR JA300 unit with its accessories.
Image: LOKITHOR JA300 in use for jump starting a vehicle.
Image: LOKITHOR JA300 inflating a tire.
Image: Safety features of the LOKITHOR JA300.
Image: LOKITHOR JA300 functioning as a portable power bank.
Image: The 300-lumen LED flashlight on the LOKITHOR JA300.
Setup
Initial Charging
Before first use, fully charge your LOKITHOR JA300. Connect the provided USB-C cable to the device's input port and a suitable USB power adapter (not included). The digital display will indicate charging status.
Understanding the Display
The digital display provides crucial information about the device's status and operation. Familiarize yourself with the indicators:
- Charging Indicator: Shows if the device is currently charging.
- Battery Power Indicator: Displays the current battery level.
- Numerical Display Area: Shows voltage during jump-starting or pressure during inflation.
- BAR/PSI Button: Toggles between pressure units.
- Pump Button: Starts/stops the air inflator.
- Red Light: Abnormal warning indicator.
- Green Light: Indicates forced start mode (on) or normal start mode (blinking).
- USB Status Indicator: Shows USB charging activity.
- ERR: Abnormal state alarm indicator.
- V: Output voltage detection state.
Image: Detailed view of the JA300's display and controls.
Operating Instructions
Jump Starting a Vehicle
- Attach Clamps: Connect the red (+) clamp to the positive terminal of the vehicle's battery and the black (-) clamp to the negative terminal. Ensure a secure connection.
- Power On: Turn on the LOKITHOR JA300. The display will show the battery voltage.
- Start Vehicle: Attempt to start your vehicle. If it doesn't start immediately, wait 30 seconds before trying again. Do not crank for more than 3 seconds per attempt.
- Power Off & Detach: Once the vehicle starts, immediately power off the JA300 and detach the clamps from the battery.
Image: Easy steps to jump start your vehicle.
Inflating Tires
- Attach Air Hose: Screw the inflatable hose onto the tire valve stem.
- Power On: Turn on the LOKITHOR JA300. The current tire pressure will be displayed.
- Select Pressure Unit: Press the BAR/PSI button to switch between units if needed.
- Adjust Pressure: Use the '+' and '-' buttons to set the desired tire pressure.
- Start Pump: Press the 'PUMP' button to begin inflation. The device will automatically stop when the preset pressure is reached.
- Remove Air Hose: Detach the air hose from the tire valve.
Image: Easy steps to inflate your tires.
Using as a Power Bank
Connect your electronic device to the USB-A or USB-C output port on the LOKITHOR JA300 using a compatible charging cable. The device will automatically begin charging your connected device.
Image: Charging devices with the JA300 power bank.
Using the LED Flashlight
Press the flashlight button to cycle through the three lighting modes: Constant, Flash, and SOS. Press again to turn off the light.
Image: The JA300's LED flashlight in use.
Maintenance
- Recharge After Each Use: To prolong battery life, recharge the JA300 after each jump-starting or significant inflation use.
- Regular Charging: If not used frequently, charge the device every 3-6 months to maintain optimal battery health and ensure it's ready for emergencies. The ultra-long standby feature allows for up to 720 days on a full charge, but periodic checks are recommended.
- Storage: Store the device in a cool, dry place, away from direct sunlight and extreme temperatures.
- Cleaning: Wipe the unit with a soft, damp cloth. Do not use harsh chemicals or abrasive cleaners.
Image: The JA300's impressive 24-month standby capability.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Device does not turn on. | Battery is completely discharged. | Charge the device fully before use. |
| Vehicle does not jump start. | Incorrect clamp connection; vehicle battery too low; engine size exceeds capacity. | Ensure clamps are connected correctly (red to positive, black to negative). Check if the JA300 is fully charged. Verify engine displacement is within specified limits (7.0L Gas / 4.5L Diesel). |
| Air inflator not working or inaccurate pressure reading. | Hose not securely attached; low device battery; internal error. | Ensure the inflatable hose is tightly screwed onto the tire valve. Recharge the device. If issues persist, refer to the official troubleshooting guide or contact support. |
| "ERR" displayed on screen. | Indicates an abnormal state or safety protection triggered (e.g., reverse polarity, over-current). | Disconnect the device, wait a few moments, and reconnect ensuring all connections are correct and safe. Refer to the safety information section. |
For more detailed troubleshooting, please refer to the official Troubleshooting Guide (PDF) available online.
Specifications
| Feature | Detail |
|---|---|
| Brand | LOKITHOR |
| Model | JA300 |
| Peak Output Current | 1500 Amps |
| Battery Capacity | 45Wh |
| Engine Compatibility | Up to 7.0L Gas / 4.5L Diesel |
| Tire Inflator Max Pressure | 150 PSI |
| Tire Inflator Airflow | 35L/Min |
| USB Input | 5V/3A, 9V/2A |
| USB Output | 5V/3A, 9V/2A |
| LED Flashlight Brightness | 300 Lumens |
| Item Weight | 3.86 pounds (1750 Grams) |
| Product Dimensions | 5.57"D x 9.99"W x 4.07"H |
| Safety Certifications | UL-2743 Listed |
Image: Dimensions of the LOKITHOR JA300.
Warranty and Support
LOKITHOR provides a 12 Months Warranty for the JA300 Jump Starter. For warranty claims, technical support, or any inquiries, please contact LOKITHOR customer service through their official channels or visit their brand store on Amazon.
Official LOKITHOR Store: LOKITHOR Amazon Store
Additional resources:
