1. Introduction
Thank you for purchasing the GKFLY Multi-functional Car Jump Starter. This device is designed to provide emergency jump-starting for 12V vehicles, act as a portable power bank for electronic devices, and offer various lighting functions. To ensure correct operation and safety, please read this user manual carefully before use.
Use utmost care when operating the device! Failure to observe safety precautions can cause damage to your health or life.
2. Product Overview
The GKFLY Car Jump Starter is a compact and powerful device. Familiarize yourself with its components:
1. Power Switch (ON/OFF) 2. LED Light (Flashlight) 3. Indicator Lights (Battery) 4. 12V Car Jump Start Port (DO Anti-reverse insert) 5. 5V-2A USB Output 6. 12V~15V-1A Input (TYPE-C charging slot)
Package Contents:
- Car Jump Starter (Power Bank) x 1
- Cable with Clamps (Red=positive; Black=negative) x 1
- Wall Charger x 1
- 1 to 3 Charging Cable x 1
- English Instructions (User Manual) x 1
The image displays the jump starter unit, smart jumper cables, a multi-charging cable, and a wall charger.
3. Setup and Charging
3.1 Charging the Jump Starter
Before first use, or if the battery indicator shows low charge, fully charge the jump starter.
- Connect the charging cable to the jump starter's input port (12V~15V-1A Input / TYPE-C charging slot).
- Connect the other end of the charging cable to a household electricity source via the wall charger.
- The battery indicator lights will illuminate during charging. When all 4 bars are full and steady, the battery is fully charged.
Note: At first use, there may be some virtual power that depletes quickly. The battery will return to normal performance after several full charging cycles.
Battery Indicator:
| LED Indicator | Light off | LED1 | LED2 | LED3 | LED4 |
|---|---|---|---|---|---|
| Battery Capacity | 0% | 25% | 50% | 75% | 100% |
4. Operating Instructions
4.1 Jump Starting a Car
WARNING: The device is suitable only for 12V batteries! Ensure the jump starter's power is above 75% before attempting to jump start.
- Open the silicone stopper of the jump starter and insert the smart jumper cable into the 12V Car Jump Start Port (DO Anti-reverse insert).
- Connect the black clamp to the negative (-) terminal of the car battery.
- Connect the red clamp to the positive (+) terminal of the car battery.
- Start the car engine.
- Once the car starts, immediately disconnect the smart jumper cable from the jump starter first, then remove the clamps from the car battery terminals.
Important Safety Notes for Jump Starting:
- Do not cycle the jump starter for more than 3 seconds.
- Pause for at least 1 minute between jump start attempts.
- Do not exceed 3 consecutive start attempts.
- This allows the jump starter battery to cool down.
- After successfully jump-starting, disconnect the jump starter from the battery within 30 seconds to prevent equipment damage.
- Do not charge the jump starter immediately after jump-starting the vehicle; wait at least 8-10 minutes.
This video demonstrates the step-by-step process of using the GKFLY jump starter to start a car with a dead battery, including connecting the clamps and starting the engine.
The image highlights the jump starter's capability for 12V vehicles, including up to 5L Gas and 3L Diesel engines, providing approximately 50 starts, and featuring a 400 Lumen LED light.
4.2 Using as a Power Bank
The jump starter can charge portable electronic devices such as smartphones, tablets, digital cameras, and other DC 5V powered devices.
- Plug the appropriate charging cable (e.g., 1 to 3 Charging cable) into the jump starter's USB output port (5V-2A USB Output or USB 5V/3A 9V/2A 12V/1.5A).
- Connect the other end of the cable to your electronic device.
- Short press the power button on the jump starter to begin charging.
A smartphone can be fully charged in approximately 1 hour.
4.3 LED Lighting Functions
The built-in LED light offers multiple modes for various situations:
- To turn on the flashlight: Press and hold the power button for 3 seconds.
- To cycle through modes: Once the flashlight is on, short press the power button to switch between:
- Normal (steady light)
- Strobe
- SOS distress signal light (flashing)
- To turn off the flashlight: Press and hold the power button again for 3 seconds.
The image illustrates the three modes of the LED light (Normal, Strobe, SOS) and provides visual examples for household, emergency, night, and rescue lighting scenarios.
5. Maintenance
- Battery Storage: To extend the device's service life, keep the device charged to at least 50% and check the charge level every month. If stored for more than three months, charge the product to ensure normal performance.
- Cleaning: Keep the smart jumper cable clips and their connection points clean and tidy.
- Automatic Shutdown: The product features an intelligent detection function and will automatically power off when there is no load or when electronic devices are fully charged, to save power.
6. Troubleshooting
6.1 Indicator Lights During Jump Start
- Green Light: When the connection of the smart jumper cable to the car battery is successful, the indicator light on the cable will light up green, and no buzzer sound will be heard. This indicates the device is ready to start.
- Red Light: A red light indicates that the supply voltage is too low or that the positive and negative electrode terminals have been swapped. Correct the connection if terminals are swapped.
6.2 General Issues
- Device not turning on/charging: Ensure the device is sufficiently charged. Refer to Section 3.1 for charging instructions.
- Device casing bulged, leaking, or unpleasant odor: Stop using the device immediately.
- Battery acid leakage: Do not touch with bare hands. If contact occurs, rinse immediately with plenty of running cold water and soap. Flush eyes for at least 10 minutes and seek medical advice if necessary.
7. Specifications
| Feature | Specification |
|---|---|
| Model Number | GG-JS-08 |
| Dimensions (L*W*H) | 131mm * 75mm * 25mm (5.16in * 2.95in * 0.98in) |
| Item Weight | About 270g |
| Input | 12V/15V-1A |
| Output | 5V-2A (USB), 5V/3A 9V/2A 12V/1.5A (USB) |
| Car Boot Voltage | 12V |
| Peak Current | 2000A |
| Battery Capacity | 44.4Wh (10000-12000 mAh) |
| Cycle Boot Life | More than 3000 times |
| Full Charging Time | 4-5 hours |
| Operating Condition (Working Temperature) | -20°C to 65°C (-4°F to 149°F) |
| Conversion Rate | 80%~85% |
| Number of Built-in Batteries | 4 |
| Certifications | CE, FCC, MSDS, ROHS |
The diagram shows the jump starter with its dimensions: 12.8cm (5in) length, 7.2cm (2.8in) width, and 2.2cm (0.8in) height.
The image illustrates the jump starter's ability to operate in extreme temperatures, from -4°F to 149°F.
8. Safety Warnings
Please read all safety warnings carefully before using the device to prevent injury or damage.
- Read the operating instructions carefully before using the device.
- The device must never be used as a substitute for a car battery.
- Keep children and animals away from the working area of the device.
- Only use the jump starter for 12V batteries.
- Keep the clips and their connection points clean and tidy. Never connect the clips together.
- Avoid using the device near explosive substances, flammable gases, or in dusty environments.
- Avoid overheating the device, smoking near the device, and exposing the device to extreme moisture. Keep the device away from open flames and never immerse it in water.
- The device must not be stored at temperatures exceeding 60°C (140°F).
- After successfully jump-starting the vehicle, disconnect the jump starter from the battery within 30 seconds to prevent equipment damage.
- Do not use the jump starter cable to charge other devices.
- Keep it supervised while charging.
- Using the device at current and voltage ranges other than those specified on the device nameplate may cause charging and discharging problems and deterioration of battery capacity and performance. This is also dangerous and may cause the device to malfunction.
- When the battery is stored for more than three months, the product needs to be charged to ensure the normal performance of the product.
- Never do anything that may cause mechanical damage to the device.
- Do not disassemble or transform the product without authorization.
- If the device casing is bulged, leaking, or giving off an unpleasant odor, stop using the device immediately.
- The device features a lithium rechargeable battery that must be disposed of under the applicable laws in your country.
- Please connect the starting cable correctly according to the manual.
- Never attempt to jump-start the vehicle in continuous mode! With standard power, the start cycle should take no more than 3 seconds, and the interval between cycles should be at least 1 minute. Do not exceed 3 consecutive start attempts.
- Only use the jump starter cable supplied with the jump starter.
- Never use the device to start the vehicle's battery and charge the device's internal battery simultaneously.
9. User Tips
- This jump starter is ideal for vehicles used infrequently or in cold weather conditions, helping to prevent dead batteries and the need for external assistance.
- Regularly check the charge level, especially before long trips or during seasonal changes, to ensure readiness.
10. Warranty and Support
10.1 Warranty Coverage
- During the warranty period, if a quality problem occurs during normal use, the product will be exchanged or repaired.
- For issues related to appearance within the replacement period, only repair service will be provided.
- Random accessories and gifts are not covered by the warranty.
10.2 Warranty Invalidation
The warranty will be automatically invalid under the following situations:
- Damage caused by incorrect operation, negligence, or force majeure (e.g., flood, fire, earthquake).
- Product has been repaired or adapted by unauthorized technicians or organizations.
- Security code or warranty sticker on the product has been replaced, altered, or broken.
- The product's appearance is badly damaged or destroyed.
If the product is not covered by the warranty, repair service will be provided at the customer's cost.
For a complete and detailed user manual, please refer to the official PDF document: GKFLY Car Jump Starter User Manual (PDF)