GKFLY Portable Car Jump Starter User Manual

Introduction

Thank you for choosing the GKFLY Portable Car Jump Starter. This device is designed to provide a reliable solution for jump-starting vehicles with dead batteries, as well as serving as a portable power bank and an emergency LED flashlight. Please read this manual thoroughly before operating the device to ensure safe and efficient use.

Figure 1: GKFLY 4000A Car Jump Starter

Safety Warnings

Failure to follow these safety instructions may result in electric shock, fire, or serious injury.

• When using the Jump Starter, ensure the blue plug is FIRMLY inserted into the Jump Starter. If not, the jump starter will not start your car and may cause damage to the jump starter.
• Make sure the battery clamps make good, clean contact with the vehicle battery terminals. If the jump starter fails to start your car after several attempts, stop and check for other possible problems.
• Remove the clamps from the battery terminal within 30 seconds after starting your car. Failure to do so may damage the jump starter.
• DO NOT connect the two battery clamps together. Doing so is not only dangerous but will also damage the jump starter and void your warranty.
• Make sure the jump starter has over 75% power when using it to start the car.
• Do not allow the appliance to get wet.
• Do not immerse the appliance in water.
• Do not operate the appliance in dangerous conditions.
• Do not store in locations where the temperature may exceed 70°C.
• Do not expose the appliance to heat.
• Charge only using the chargers provided with the appliance.
• Under extreme conditions, battery leakage may occur. Carefully wipe the liquid away using a cloth and avoid skin contact. In case of skin or eye contact, rinse immediately with clean water and seek medical attention.
• At the end of the battery's useful life, dispose of the battery with due care for the environment.

Product Overview

Familiarize yourself with the components of your GKFLY Car Jump Starter:

Figure 2: Product Components

1. LCD screen
2. Switch
3. 12V vehicle starting output
4. USB: 5V/2A outlet
5. Charging input port 5V/2.0A
6. LED lamp

Setup

Package Contents:

Figure 3: Package Contents

• Jump Starter unit
• 3-in-1 mobile charging cable
• Jumper cables (red and black clamps)
• User manual (this document)
• Storage/packing box

Initial Charging:

Before first use, fully charge the jump starter using the provided charging cable and a 5V/2.0A charger. The LCD screen will indicate the charging progress. Ensure the device is fully charged for optimal performance, especially when jump-starting a vehicle.

Operating Instructions

1. Jump Starting a Vehicle:

1. Before starting the car, ensure the jump starter's LCD screen indicates a minimum of 75% charge.
2. Firmly insert the blue plug of the jumper cable into the jump starter's 12V vehicle starting output port (3). Ensure the Cable Indicator is off.
3. Connect the Red clamp to the positive (+) battery terminal of your vehicle.
4. Connect the Black clamp to the negative (-) battery terminal of your vehicle.
5. Start the vehicle.
6. Once the vehicle starts, immediately pull up the clamp cable from the jump starter, and then disconnect the clamps from the car battery terminals. Do not keep the red and black clamps connected to the vehicle battery terminals for more than 30 seconds after starting.

2. Using as a Portable Power Bank:

The jump starter features dual USB output ports (4) to charge most digital devices.

• Connect your device's USB charging cable to one of the jump starter's USB output ports.
• The jump starter will automatically begin charging your device. The LCD screen will show the remaining battery percentage.

Figure 4: Charging multiple devices via USB

3. Using the LED Flashlight:

The built-in LED lamp (6) offers multiple lighting modes for emergency situations.

• Press and hold the power switch (2) to turn on the LED flashlight.
• Press the switch again to cycle through different modes: Normal light, SOS signal, and Strobe light.
• Press and hold the switch again to turn off the flashlight.

Figure 5: LED Flashlight Modes

Maintenance

• Keep the jump starter clean and dry. Avoid exposure to moisture or extreme temperatures.
• Store the device in a cool, dry place when not in use.
• For optimal battery health, recharge the jump starter every 3 months, even if it has not been used.
• Inspect the jumper cables and clamps regularly for any signs of damage or wear. Replace if necessary.

Troubleshooting (FAQ)

Q: How many times can the jump starter charge a mobile phone?

A: From a full charge, the jump starter can charge a mobile phone approximately 4-5 times (based on tests with an iPhone 8).

Q: How long does it take to charge a mobile phone?

A: Approximately 2 hours, depending on the phone's battery capacity and charging state.

Q: How many times can the jump starter start a car from a full charge?

A: Approximately 15-20 times.

Q: How long will the battery stay charged if left idle?

A: 4-6 months. However, it is recommended to recharge every 3 months to maintain battery health.

Specifications

Figure 6: Model Comparison (GG-JS-RATEL specifications are on the right)

Warranty Information

What is Covered:

This warranty covers any defects in materials or workmanship, with the exceptions stated below.

What is Not Covered:

This warranty does not cover damage or product failure resulting from normal wear and tear, physical abuse, or improper use.

For further support or warranty claims, please refer to the contact information provided at the point of purchase.

User Tips

• Many users confirm that the device effectively jump-starts cars.
• Remember to fully charge the unit before extended storage and recharge every 3 months to prevent battery degradation.
• Ensure all connections are secure and clean for optimal performance when jump-starting.