NOCO Genius® Boost™ Sport GB20 User Guide

Welcome

Thank you for buying the NOCO Genius® Boost™ GB20. Read and understand the User Guide before operating the product. For questions regarding the jump starter, view comprehensive support information at www.no.co/support. To contact NOCO for personalized support (not available in all areas), visit www.no.co/connect.

What's In The Box

• GB20 Lithium Jump Starter
• Micro USB Cable
• Powersport Battery Clamps
• User Guide & Information Guide and Warranty

Contacting NOCO

• Phone: 1.800.456.6626
• Email: support@no.co
• Mailing Address: 30339 Diamond Parkway, #102, Glenwillow, OH 44139, United States of America

About GB20

The NOCO Genius® Boost™ GB20 is an ultra-compact and portable lithium-ion jump starter for cars, boats, motorcycles, ATVs, lawn mowers, RVs, tractors, trucks and more. It is extremely safe for anyone to use. It features spark proof technology and reverse polarity protection. The GB20 can instantly jump start most single-battery applications, up to 20 times on a single charge. The GB20 is also equipped with a USB battery pack and LED flashlight, making it an ultimate emergency tool.

Getting Started

The GB20 comes partially charged out of the box and needs to be fully charged prior to use. Carefully read and understand the vehicle owner's manual on specific precautions and recommended methods for jump starting the vehicle. Make sure to determine the voltage and chemistry of the battery by referring to the battery owner's manual prior to using this product. The GB20 is for jump starting 12-volt lead-acid batteries only.

Connecting to the Battery

Before connecting to the battery, verify that you have a 12-volt lead-acid battery. The GB20 is not suitable for any other type of battery. Identify the correct polarity of the battery terminals on the battery. The positive battery terminal is typically marked by these letters or symbols (POS, P, +). The negative battery terminal is typically marked by these letters or symbols (NEG, N, -). Do not make any connections to the carburetor, fuel lines, or thin, sheet metal parts. The below instructions are for a negative ground system (most common). If your vehicle is a positive ground system (very uncommon), follow the below instructions in reverse order.

1. Connect the positive (red) battery clamp to the positive (POS, P, +) battery terminal.
2. Connect the negative (black) battery clamp to the negative (NEG, N, -) battery terminal or vehicle chassis.
3. When disconnecting, disconnect in the reverse sequence, removing the negative first (or positive first for positive ground systems).

Jump Starting

1. Verify the voltage and chemistry of the battery.
2. Confirm the battery clamps are connected to the correct polarity battery terminals.
3. Connect the HD X Connector to the GB20.
4. Make sure all of the vehicle's power loads (headlights, radio, air conditioning, etc.) are turned off before attempting to jump start the vehicle.
5. Press the Power Button to begin jump starting. All LEDs will flash, indicating that all LEDs are properly functioning. If properly connected to the battery, the White Boost LED will illuminate. If the battery clamps are connected in reverse, the Red Error LED will illuminate. Reverse the connections to clear this error and then the White Boost LED will illuminate. The White Boost LED is illuminated when the GB20 is ready to jump start your vehicle.
6. Try starting the vehicle. Most vehicles will immediately start. Some vehicles may require the GB20 to be connected for up to 30 seconds before starting. If the vehicle does not start right away, wait 20-30 seconds and try again. Do not attempt more than five (5) consecutive jump starts within a fifteen (15) minute period. Allow the GB20 to rest for fifteen (15) minutes before attempting to jump start the vehicle again.
7. Once the vehicle has started, disconnect the battery clamps, and remove the GB20.

Low Voltage Batteries & Manual Override

The GB20 is designed to jump start 12-volt lead-acid batteries down to 2-volts. If the battery is below 2-volts, the Boost LED will be “Off”. This indicates that the GB20 cannot detect a battery.

If a battery below 2-volts needs to be jump started, there is a Manual Override feature, which allows forcing “On” the jump start function.

Before using the Manual Override feature, make sure the battery clamps are connected to the correct polarity battery terminals and the HD X Connect is connected to the GB20. To use the Manual Override feature, press and hold the Manual Override Button (represented by a red exclamation point icon inside a red circle) for three (3) seconds. The White Boost LED will flash “On” and “Off” indicating successful entry into Manual Override and readiness to jump start the vehicle. If connected in reverse polarity, the Red Error LED will illuminate and the unit will not operate.

Most vehicles will immediately start. Some vehicles may require the GB20 to be connected for up to 30 seconds before starting. If the vehicle does not start right away, wait 20-30 seconds and try again. Do not attempt more than five (5) consecutive jump starts within a fifteen (15) minute period. Allow the GB20 to rest for fifteen (15) minutes before attempting to jump start the vehicle again.

Understanding Charge LEDs

The GB20 has four (4) Charge LEDs - 25%, 50%, 75% and 100%. These Charge LEDs indicate the internal battery's state-of-charge (SOC). See below:

User Interface

The GB20 features several indicators and buttons:

1. Internal Battery Level: Indicates the charge level of the internal battery (represented by four small circles, 25%, 50%, 75%, 100%).
2. Error LED: Illuminates Red if reverse polarity is detected, or blinks “On” and “Off” when the internal battery temperature is too high (represented by a diamond shape).
3. Power Button: Push to turn unit “On” & “Off” (represented by a circle with a power symbol ⏻).
4. Power LED: Illuminates White when unit is “On” (represented by a small circle).
5. Boost LED: Illuminates White when Boost is active. If the unit is connected properly to a battery, the GB20 will automatically detect a battery and go into Boost mode (LED flashes White when Manual Override feature is active) (represented by a circle with a lightning bolt symbol).
6. Manual Override Button: To enable, push and hold for three (3) seconds. WARNING: Disables safety protection and manually forces Boost “On”. Only for use when a battery is too low to be detected (represented by an exclamation mark ! inside a circle).
7. Light Mode Button: Toggles the ultra-bright LED light through 7 light modes: 100% > 50% > 10% > SOS > Blink > Strobe > Off (represented by a light bulb symbol 💡).

When Recharging the GB20

Understanding Error Conditions

The GB20 shall display an Error Condition when a reverse polarity condition is present, a battery below two (2) volts, or the internal battery overheating. When one of these Error Conditions are present, the following will happen:

Charging the GB20

Connect the GB20 using the included USB Charge Cable to the USB IN port and the USB car charger. It can also be recharged from any USB powered port, like an AC adapter, car charger, laptop and more. The USB IN port is rated at 2.1 Amps to ensure safe and efficient charging of the internal lithium battery. Due to FCC regulations, it is recommended not to charge and discharge the unit at the same time.

Charging Times

The time to recharge a GB20 will differ based on the discharge level and the power source used. Actual results may vary due to battery conditions.

Charging Your USB Devices

The GB20 can recharge virtually any USB device, like a smartphone. Connect the included USB Charge Cable to the USB OUT port and connect to the USB device. The number of times a USB device can be recharged will vary between devices. For recharge times, contact the device manufacturer.

LED Flashlight

The GB20 has an integrated ultra-bright LED flashlight. It has seven (7) light modes that affect its performance and longevity: 100%, 50%, 10%, SOS, Blink, Strobe, and Off.

To turn the flashlight “On” and “Off”, use the Power button with the light bulb icon. Press once to turn the flashlight “On” at 100% luminosity, again for 50% luminosity (within 3 seconds), again for 10% luminosity (within 3 seconds), again for SOS (within 3 seconds), again for Blink (within 3 seconds), again for Strobe (within 3 seconds) and again for "Off". If a light mode is not selected within 3 seconds, it will remain “On” in the current light mode, and the next selection will turn the flashlight “Off”.

Depending on the mode selection, the GB20 will have various levels of output and runtime. Selecting a lower power level when using the GB20 for extended periods of time will prolong battery life.

Modes: 100% > 50% > 10% > SOS > Blink > Strobe > Off

Energy Saving Auto Shut Off

The GB20 has a built-in energy saving feature that will automatically turn the unit off after seven (7) hours. To continue using, simply power on the unit again.

Technical Specifications