1. Introduction
The JFEGWO 8250A Portable Car Jump Starter is a heavy-duty, versatile device designed to provide emergency jump-starting for a wide range of 12V vehicles, including gasoline engines up to 16L and diesel engines up to 14L. It also functions as a powerful 32000mAh power bank and features a multi-mode LED flashlight. Built with advanced safety features and a rugged, waterproof design, it ensures reliable performance in various conditions.
2. What's in the Box
Verify that all items are present in your package:
- JFEGWO 8250A 12V Jump Starter Unit
- Ergonomic Full-wrap Battery Clamps
- Charging Cable (USB-C)
- User Manual
- Water-resistant EVA Case
3. Specifications
| Attribute | Value |
|---|---|
| Product Name | Car Jump Starter |
| Model Number | F40-8250A Pro |
| Battery Type | Lithium-ion Polymer Battery |
| Capacity | 32000mAh |
| Peak Current | 8250A |
| Input (USB-C) | 5V/3A; 9V/2A; 12V/1.5A (PD 18W) |
| Output (USB-A/-C) | 5V/3.1A (USB-C: 18W) |
| Total Output | 18W |
| Suitable for Car Type | 12V battery, up to 16L gas and 14L diesel engines |
| Starter Times (Fully Charged) | 60-80 Times |
| Working Temperature | -20°C to 60°C (-4°F to 140°F) |
| Size | 22.8 x 10.4 x 4.3 cm / 8.98 x 4.09 x 1.66 inches |
| Durability | Supports 1,000 charge cycles and a 48-month standby time |
| Waterproof Rating | IP65 |
| Drop-Proof | 1.5m |
4. Safety Information and Protections
The JFEGWO 8250A is equipped with advanced safety features to protect both the device and your vehicle. Always adhere to these safety guidelines:
- Reverse-Polarity Protection: Prevents damage if clamps are connected incorrectly.
- Reverse-Charge Protection: Stops current flow back to the jump starter from the vehicle battery.
- Short-Circuit Protection: Automatically shuts off in case of a short circuit.
- Over-Voltage Protection: Safeguards against excessive voltage.
- Over-Charge Protection: Prevents overcharging of the internal battery.
- AI-Software Protection: Intelligent software monitors and manages power delivery.
- High-Temperature Protection: Shuts down if internal temperature exceeds safe limits.
- Low-Temperature Protection: Ensures safe operation in cold conditions.
5. Setup and Charging the Device
5.1 Initial Charge
Before first use, fully charge the jump starter. Connect the provided USB-C charging cable to the 'IN PD-18W' port on the jump starter and to a suitable USB wall adapter (not included). The LED screen will display the charging status and battery level.
5.2 Charging External Devices
The jump starter can act as a power bank to charge your electronic devices:
- Open the protective cover on the side of the jump starter to reveal the USB ports.
- Connect your device's charging cable to either the USB-A (5V OUT) or USB-C (5V OUT) port on the jump starter.
- The LED screen will show the current charging wattage.
Product Demonstration: This video provides an overview of the jump starter's features, including its jump-starting capability, power bank function, and LED light modes.
6. Operating Instructions
6.1 Jump Starting a Vehicle
Follow these steps to jump start your vehicle:
- Ensure the jump starter is sufficiently charged (preferably above 50%).
- Connect the red clamp to the positive (+) terminal of your vehicle's battery.
- Connect the black clamp to the negative (-) terminal of your vehicle's battery.
- Insert the battery clamp plug into the starter cable port on the jump starter.
- The LED screen on the jump starter should display "12V READY".
- Start your car engine.
- Once the engine starts, immediately disconnect the battery clamp plug from the jump starter, then remove the clamps from the car battery.
6.2 Force Boost Function
The Force Boost function is designed for situations where the vehicle battery voltage is extremely low (below 2V) and the jump starter cannot detect it automatically. This function bypasses some safety protections, so use it with caution.
- Connect the clamps to the vehicle battery terminals as described in 6.1.
- Press and hold the "FORCE START" button on the jump starter until the indicator illuminates green.
- Proceed to start your car engine.
- Immediately disconnect the jump starter once the engine starts.
WARNING: Using the Force Boost function disables safety protection. Only use it when the battery voltage is too low to be detected by the standard method.
6.3 Using the LED Light
The jump starter includes a powerful LED light with three modes:
- Steady (400-lumen): Press the light button once for continuous illumination.
- SOS: Press the light button a second time to activate the SOS flashing mode.
- Strobe: Press the light button a third time for a rapid strobe effect.
- To turn off the light, press the button a fourth time.
7. Maintenance
Proper maintenance ensures the longevity and optimal performance of your jump starter:
- Regular Recharging: Regularly check the battery level and recharge the jump starter, especially if it has been stored for an extended period. It supports 1,000 charge cycles and has a 48-month standby time, but periodic charging is recommended.
- Storage: Store the device in a cool, dry place, away from direct sunlight and extreme temperatures.
- Inspection: Periodically inspect the cables and connectors for any signs of damage, wear, or corrosion. Replace any worn parts immediately.
- Cleaning: Keep the unit clean and free from dust and debris. Use a soft, dry cloth for cleaning.
- Follow Manufacturer's Instructions: Always refer to this manual for specific usage and maintenance guidelines.
8. Troubleshooting
- Q: The jump starter is not turning on or charging.
- A: Ensure the charging cable is securely connected to both the jump starter and a working power source. Check the power source itself. If the unit has been stored for a long time, it might require a longer initial charge.
- Q: The car is not starting after connecting the jump starter.
- A: Verify that the clamps are correctly connected to the positive (+) and negative (-) terminals of the car battery. Ensure the jump starter has sufficient charge. If the car battery is completely dead (below 2V), you may need to use the Force Boost function (refer to section 6.2).
- Q: The LED screen shows an error message (e.g., 'Short Circuit' or 'Reverse Connection').
- A: Disconnect the clamps immediately. Check for any short circuits (e.g., clamps touching each other or other metal parts) or incorrect polarity connections. Reconnect carefully following the instructions in section 6.1.
- Q: My phone is not charging when connected to the jump starter.
- A: Ensure the jump starter is powered on. Check that your phone's charging cable is functional and properly connected to the jump starter's USB-A or USB-C output port.
9. User Tips
- Always keep your jump starter charged, especially before long trips, to ensure it's ready for emergencies.
- Familiarize yourself with the LED screen indicators; they provide crucial information about the device's status and potential issues.
- In extremely cold weather, keep the jump starter in a warmer environment (e.g., inside the car cabin) until needed, as cold can affect battery performance.
- When jump-starting, ensure a clean connection between the clamps and battery terminals for optimal power transfer.
- Remember that the Force Boost function is a last resort; always try the standard jump-start method first.
10. Warranty & Support
This product is designed for high quality and comes with a 24-month warranty. For any questions, technical support, or assistance, please contact the seller directly. You can reach out via:
- Email: 329594862@qq.com
- Tel/Wechat/WhatsApp: +86-13342536163
Please have your product model number (F40-8250A Pro) ready when contacting support.
