1. Product Overview
Thank you for choosing the GKFLY Car Jump Starter and Power Bank. This device is designed to provide emergency jump-starting for vehicles and serve as a portable power bank for various electronic devices. Please read this manual carefully before use and keep it for future reference.
1.1 Product Layout
The GKFLY Jump Starter features a compact design with multiple functionalities. Key components include:
- LED Display: Shows remaining power and activated output ports.
- LED Flashlight: Provides illumination, strobe, and SOS modes.
- Jump Start Socket: For connecting the jumper cables.
- Switch Button: To check power level and activate LED light.
- 5V 2A Input Port: For charging the jump starter.
- USB1 5V 2.1A Output Port: For charging electronic devices.
- USB2 5V 1A Output Port: For charging electronic devices.
2. Setup and Charging
2.1 Charging the Jump Starter
To ensure optimal performance, fully charge the jump starter before first use and after each use.
- Connect the charging cable to a 5V/2A USB power source (e.g., wall adapter, car charger).
- Plug the other end of the charging cable into the 5V 2A input port of the jump starter.
- The LED display will show the charging progress. The unit is fully charged when the display reaches 100%.
Note: Do not charge the jump starter immediately after jump-starting an engine. Wait at least 30 minutes.
2.2 Charging Electronic Devices (Power Bank Function)
The jump starter can be used to charge various electronic devices such as phones, tablets, earbuds, cameras, laptops, and smartwatches.
- Plug the USB charging cable of your device into either the USB1 (5V 2.1A) or USB2 (5V 1A) output port on the jump starter.
- The LED display will show the power level while charging.
- Press the switch button to initiate charging if it doesn't start automatically.
3. Operating Instructions
3.1 Jump Starting a 12V Vehicle
Important: Ensure the jump starter's power level is at least 80% for optimal performance. Fully charged is suggested.
- **Insert Starter Cable:** Insert the blue end of the jumper cable into the jump start socket on the device. Ensure it is deeply and securely connected.
- **Connect to Car Battery:** Connect the RED clamp to the vehicle's positive (+) battery terminal. Connect the BLACK clamp to the vehicle's negative (-) battery terminal.
- **Start Engine:** Start your vehicle's engine. If the car does not start on the first attempt, wait at least 30 seconds before trying again. If it fails after 3 attempts, check the vehicle's engine or circuit for issues, and verify the jump starter's status.
- **Remove Clamps:** Once the vehicle starts, immediately remove the jumper cable from the jump starter, then disconnect the red and black clamps from the vehicle battery terminals within 30 seconds.
- Close the vehicle's hood and drive away.
3.2 LED Flashlight Operation
The built-in LED flashlight offers three modes: illumination, strobe, and SOS.
- Press and hold the switch button for 3 seconds to turn on the LED light (illumination mode).
- Press the switch button slightly to cycle through the modes: illumination → strobe → SOS.
- Press and hold the switch button again for 3 seconds to turn off the LED light.
4. Specifications
| Feature | GG-JS-F40D (4000A Model) | GG-JS-GP8000 (8000A Model) |
|---|---|---|
| Size | 205mm x 90mm x 40mm | 205mm x 90mm x 40mm |
| Product Weight | 400g (0.635kg from product properties) | 550g |
| Battery Capacity | 59.2Wh (12000-18000 mAh) | 88.8Wh |
| Battery Type | Lithium ion / Lithium polymer battery | |
| No-load Voltage | 15V | 15V |
| Car Start Voltage | 12V | |
| Peak Current | 4000A (>1200 A) | 8000A |
| Charging Input | 5V-2A | |
| USB Output | 5V-2A (USB1: 5V 2.1A; USB2: 5V 1A) | 5V-2A |
| Full Charging Time | Approx. 5 hours | |
| Operation Temperature | -20°C ~ 60°C (-4°F ~ 140°F) | |
| Cycle Boot Life | >1000 cycles (Start car more than 3000 times) | |
| Conversion Rate | 85%~90% | |
| Number of Built-in Batteries | 4 | |
| Suitable for Petrol Car | Under 6.5L | Under 9.0L |
| Suitable for Diesel Car | Under 4.5L | Under 7.0L |
| Special Features | USB, Lighting, Warning Light, SOS Lighting | |
| Certifications | CE, FCC, SDS, ROHS, CCC | |
5. Maintenance and Safety Guidelines
5.1 General Maintenance
- **Recharge Regularly:** To maintain battery health, recharge the jump starter every 3 months, even if not in use.
- **Storage:** Store the device in a cool, dry place. Avoid extreme temperatures.
- **Cleaning:** Wipe the device with a dry cloth. Do not use harsh chemicals or immerse in water.
5.2 Safety Warnings
- **Disconnect Promptly:** ALWAYS remove the jump starter unit from the vehicle within 30 seconds after the engine starts.
- **Avoid Short Circuits:** DO NOT connect the two jumper clamps together. This can be dangerous.
- **No Disassembly:** DO NOT disassemble the main unit. Only a suitably qualified technician may repair this unit.
- **Avoid Moisture:** Do not allow the appliance to become wet or immerse it in water.
- **Temperature Control:** Do not expose the appliance to excessive heat. Charge only at ambient temperatures between 0°C and 60°C.
- **Charging:** Charge only using the charger provided with the appliance.
- **Battery Leakage:** In extreme conditions, battery leakage may occur. If you notice liquid on the batteries, carefully wipe it off using a cloth and avoid skin contact. In case of skin or eye contact, rinse immediately with clean water and seek medical attention.
- **Disposal:** At the end of its useful life, dispose of the appliance responsibly and with due care for the environment.
5.3 Toxic and Harmful Substances
The composition and amount of toxic and harmful substances in the jump starter are below the MCV limit specified in the standard 2011/65/EU (RoHS) with amendment (EU)2015/863.
| Substance | Pb (Lead) | Hg (Mercury) | Cd (Cadmium) | Cr(VI) (Hexavalent Chromium) | PBB (Polybrominated Biphenyls) | PBDE (Polybrominated Diphenyl Ethers) | DBP (Dibutyl Phthalate) | BBP (Benzyl Butyl Phthalate) | DEHP (Di(2-ethylhexyl) phthalate) | DIBP (Diisobutyl Phthalate) |
|---|---|---|---|---|---|---|---|---|---|---|
| Content | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
6. Troubleshooting
| Problem | Cause | Remedy |
|---|---|---|
| No response when pressing the switch button. | Low voltage protection of jump starter is activated. | Plug the charging cable into the input port to recharge and activate the unit. |
| Car does not start after multiple attempts. | Vehicle engine/circuit issues, or jump starter problem. | Check vehicle for other issues. If jump starter is suspected, contact support. |
| Device turns off when charging phone/tablet. | Possible low charge or internal issue. | Ensure device is fully charged. If problem persists, contact support. |
7. Frequently Asked Questions (FAQ)
- Q: How to turn off this appliance?
A: This appliance will power off automatically when no load is found or charging is completed. - Q: How many times can this appliance charge my cell phone?
A: Approximately 3 times for an iPhone mobile phone. - Q: How long will this appliance take to charge my mobile phone fully?
A: Approximately 1 hour. - Q: How many times can this appliance on a full charge start a vehicle?
A: Approximately 20 times. - Q: How long will the power of the battery of this appliance remain?
A: 3-6 months. However, we suggest recharging it every 3 months to maintain optimal performance. - Q: Can I charge a car battery with this device?
A: This device is primarily a jump starter for emergency starts, not a battery charger for continuous charging of a car battery. - Q: Is it safe to leave the jump starter in the car during winter?
A: While the device has a wide operating temperature range, storing it in extreme cold for extended periods may affect its performance. It's generally recommended to store it in a warmer environment if possible, or ensure it's fully charged before use in cold conditions. - Q: What is the difference between the 4000A and 8000A models?
A: The main differences are the peak current (4000A vs 8000A), battery capacity (59.2Wh vs 88.8Wh), and the maximum engine displacement they can jump start (e.g., 6.5L Gas for 4000A vs 9.0L Gas for 8000A).
8. User Tips
- Pre-charge is Key: Always ensure your jump starter is fully charged before storing it in your vehicle, especially if you anticipate needing it in cold weather.
- Cold Weather Performance: Many users report excellent performance in cold temperatures (e.g., -20°C to -25°C) for starting various vehicles, including diesel engines. However, if the unit itself is frozen, its effectiveness may be reduced.
- Check Connections: Ensure the jumper cable clips are firmly and correctly attached to the battery terminals (red to positive, black to negative) for a successful start.
- Don't Over-attempt: If your car doesn't start after 2-3 attempts, stop and check for other issues with your vehicle or the jump starter. Continuous attempts can drain the jump starter or indicate a deeper problem.
- Lightweight Design: The device is noted for being lightweight, making it easy to carry. While some users question the internal battery capacity due to its weight, many confirm its effectiveness for jump-starting.
- Multi-purpose Use: Beyond jump-starting, the power bank and flashlight features are highly appreciated for daily use and emergencies.
9. Warranty Information
We offer a limited warranty for this product against any defects in material and workmanship for a period of 12 months from the date of factory purchase. The conditions of the warranty are as follows:
- The warranty is only valid upon presentation of the original receipt (from dealer/retailer) by the original purchaser with the product to be repaired or replaced.
- The warranty is invalid if the serial number, date of purchase, or label has been removed.
- The warranty does not cover damage or product failure resulting from normal wear and tear, physical abuse, improper installation, modification, or repairs by unauthorized third parties.
- We do not assume responsibility for any loss or damage incurred during shipment or as a result of a force majeure.
- We are not liable for any incidental or consequential damages arising from the use or misuse of the product.
- All warranty claims are limited to repair or replacement of defective product and are at our sole discretion.
- If we repair or replace the product, the product will be covered for the remaining time of the original warranty period. Repair or replacement may involve the use of reconditioned units which are equivalent in function. Replaced parts or products become our property.
- Consumable components such as batteries and accessories are not covered by the warranty.
For further assistance, please refer to the official user manual PDF: GKFLY User Manual (PDF)