NOCO Boost Sport GB20 Manual: A Comprehensive Guide
This manual provides detailed instructions for the NOCO Boost Sport GB20‚ a portable lithium jump starter and power bank. It covers safe operation‚ features‚ and troubleshooting.
The NOCO Boost Sport GB20 is engineered as a highly portable and powerful solution for jump-starting vehicles with dead batteries. This 12V lithium jump starter delivers an impressive 500 Amps of peak starting current‚ making it suitable for a wide range of vehicles including cars‚ motorcycles‚ ATVs‚ lawn mowers‚ boats‚ and trucks.
Beyond jump-starting‚ the GB20 functions as a convenient power bank‚ capable of recharging mobile devices like smartphones and tablets via its integrated USB port. Its compact design allows for easy storage in a glove compartment or toolbox‚ ensuring you’re always prepared for unexpected battery failures. This manual will guide you through the safe and effective use of all its features‚ maximizing its benefits and ensuring long-lasting performance. Understanding its capabilities is key to reliable emergency assistance.

Key Features and Specifications
The NOCO Boost Sport GB20 boasts several key features. It delivers 500A peak current‚ sufficient for jump-starting various vehicles. Its lithium-ion technology ensures a lightweight and compact design for portability. The integrated USB port allows for convenient charging of mobile devices‚ functioning as a power bank. Safety features include spark-proof technology and reverse polarity protection.
Specifications include: 12V output voltage‚ 500A peak current‚ lithium-ion battery capacity‚ and USB output of 5V/2.1A. It’s compatible with cars‚ motorcycles‚ ATVs‚ lawn mowers‚ and more. The device also incorporates an emergency flashlight with multiple modes (high‚ low‚ SOS). Its robust construction and user-friendly design make it a reliable emergency tool. The GB20 is designed for quick and safe jump starts‚ offering peace of mind on the road or during outdoor activities.

Understanding the Device
This section details the NOCO Boost Sport GB20’s components‚ safety guidelines‚ and battery specifics‚ ensuring users comprehend its functionality before operation.
Components and Ports Identification
The NOCO Boost Sport GB20 features a robust design with several key components. The unit itself houses a high-capacity lithium battery‚ providing 500A of peak starting current. Identifying the ports is crucial for proper operation. You’ll find the positive (+) and negative (-) jump start clamps‚ color-coded for easy and safe connection to a vehicle’s battery.
Additionally‚ the GB20 includes USB ports – a standard USB-A port for charging mobile devices like smartphones and tablets‚ and a Micro-USB input port for recharging the unit itself. The power button activates the jump starter and flashlight functions. LED indicators display the battery’s state of charge and potential error conditions. A clear understanding of each component’s location and function is essential for maximizing the device’s utility and ensuring safe operation. Familiarize yourself with these elements before attempting to use the jump starter.
Safety Precautions and Warnings
Prior to using the NOCO Boost Sport GB20‚ carefully review these critical safety precautions. Always wear eye protection during jump starting procedures to shield against potential sparks or battery acid. Never attempt to jump start a damaged battery – look for cracks or leaks. Ensure the GB20 is disconnected from the vehicle before storing or transporting it.
Avoid short-circuiting the clamps; connect them only to the vehicle’s battery terminals in the correct polarity. Do not expose the device to extreme temperatures or moisture. This jump starter is intended for 12-volt battery systems only; using it with other voltages can cause damage or injury. Keep the GB20 out of reach of children. Improper use can lead to fire‚ explosion‚ or personal harm. Read the entire manual before operation to fully understand all warnings and safety guidelines.
Battery Type and Capacity
The NOCO Boost Sport GB20 utilizes a lithium-ion battery‚ offering a high energy density for its compact size. This internal battery boasts a capacity of 16‚000mAh‚ providing ample power for multiple jump starts and device charges. It’s designed for 12-volt systems commonly found in cars‚ motorcycles‚ ATVs‚ lawn mowers‚ and more.
Unlike traditional lead-acid jump starters‚ the lithium-ion battery in the GB20 maintains its charge for extended periods‚ minimizing self-discharge. The 500A peak current is sufficient for a wide range of engine sizes. It’s crucial to understand that battery capacity diminishes over time with use and age. Proper storage and maintenance‚ as detailed later in this manual‚ will help maximize the lifespan and performance of the GB20’s internal battery.

Jump Starting Procedures
Safely jump start your vehicle with the NOCO Boost Sport GB20 by following these crucial steps. Ensure correct polarity and proper connection techniques.
Preparing the GB20 for Jump Starting

Before attempting to jump start a vehicle‚ ensure the NOCO Boost Sport GB20 is adequately charged. A full charge guarantees optimal performance and minimizes the risk of failure during a critical situation. Check the battery health indicators on the device; all LEDs should illuminate‚ indicating a full charge.
Inspect the Boost Sport GB20’s clamps for any signs of damage‚ corrosion‚ or loose connections. Damaged clamps can compromise the connection to the vehicle’s battery‚ hindering the jump-starting process and potentially causing sparks. Ensure the clamps are clean and securely attached to the provided cables.
Clear the area around the vehicle’s battery of any flammable materials. Jump starting can generate sparks‚ and a safe environment is paramount. Familiarize yourself with the vehicle’s battery location and polarity (positive and negative terminals) before proceeding. Having a clear understanding of these steps will streamline the process and enhance safety.
Connecting to a Vehicle Battery (Correct Polarity)
Accurate polarity is crucial when connecting the NOCO Boost Sport GB20 to a vehicle battery. Incorrect connection can cause severe damage to the vehicle’s electrical system and potentially injure the user. Always double-check before making any connections.
First‚ attach the red (positive) clamp to the vehicle’s positive battery terminal‚ typically marked with a “+” symbol or a red cover. Ensure a secure and firm connection. Next‚ attach the black (negative) clamp to a solid‚ unpainted metal surface on the vehicle’s chassis‚ away from the battery.
Do not connect the black clamp directly to the negative battery terminal. Connecting to the chassis provides a safe grounding point and minimizes the risk of sparks igniting flammable gases near the battery. Once both clamps are securely connected‚ verify the connections again before proceeding to the jump-starting sequence.
Jump Starting Step-by-Step Instructions
After confirming correct polarity‚ press the power button on the NOCO Boost Sport GB20 to activate the jump starter. The LED indicators will illuminate‚ showing the device’s status. Within seconds‚ the unit will be ready to deliver starting power.
Turn the vehicle’s ignition key to the start position. If the engine doesn’t start immediately‚ wait up to 30 seconds before attempting again. Do not crank the engine continuously for more than 30 seconds at a time‚ as this can overheat the starter motor.
Once the vehicle starts‚ disconnect the clamps in reverse order: black clamp from the chassis first‚ then the red clamp from the positive terminal. Store the GB20 safely after use. If the vehicle fails to start after multiple attempts‚ consult a qualified mechanic.
Troubleshooting Jump Starting Issues
If the GB20 fails to jump start‚ first re-check the clamp connections‚ ensuring a secure and clean contact with the battery terminals; Verify correct polarity – red to positive‚ black to negative. A weak battery or corroded terminals can hinder the process.
If the LED indicators flash rapidly‚ the GB20 may be experiencing a low voltage or overload situation. Allow the unit to cool down or try again with a different vehicle; Do not attempt to jump start a battery that is frozen or visibly damaged.
For persistent issues‚ ensure the GB20 itself is fully charged. If problems continue‚ consult the NOCO customer support team for further assistance. A faulty battery or underlying vehicle issue may require professional diagnosis.

Power Bank Functionality
The GB20 functions as a power bank‚ utilizing its internal battery to recharge USB devices like smartphones and tablets conveniently on the go.
Charging Mobile Devices via USB
The NOCO Boost Sport GB20 offers convenient mobile device charging through its integrated USB ports. This functionality transforms the jump starter into a portable power bank‚ ideal for keeping your smartphones‚ tablets‚ and other USB-powered gadgets charged during travel‚ emergencies‚ or outdoor adventures.
To charge a device‚ simply connect a compatible USB cable from the GB20’s USB output to your device’s charging port. The GB20 is designed to work with a wide range of devices‚ ensuring broad compatibility. The charging process initiates automatically upon connection.
It’s important to note that the charging speed may vary depending on the device and the cable used. For optimal charging performance‚ use a high-quality USB cable. The GB20’s internal battery capacity allows for multiple charges‚ providing a reliable power source when access to traditional outlets is limited. Regularly check the GB20’s battery level to ensure sufficient power for your charging needs.
USB Output Specifications and Compatibility
The NOCO Boost Sport GB20 features a USB output delivering a consistent 5V/2.1A power supply‚ ensuring efficient charging for a diverse range of mobile devices. This output is compatible with most smartphones (both Android and iOS)‚ tablets‚ Bluetooth headphones‚ cameras‚ and other USB-powered accessories.
Regarding compatibility‚ the GB20 supports charging devices utilizing standard USB connectors. While generally compatible with most devices‚ some older or specialized devices might require a different cable or adapter. It’s always recommended to check your device’s charging specifications for optimal performance.
The 2.1A output provides a faster charging rate compared to standard 1A USB ports‚ reducing charging times significantly. However‚ devices will only draw the power they are designed to accept‚ preventing overcharging. The GB20’s USB port is designed for reliable and safe power delivery‚ making it a versatile power source for your essential gadgets.
Charging the GB20 Itself
Recharging the NOCO Boost Sport GB20 is straightforward using the included Micro USB cable. Connect the cable to the GB20’s Micro USB input port and a standard USB power source‚ such as a wall adapter or a computer’s USB port. A full charge typically takes approximately 3-4 hours‚ depending on the power source’s output.
During charging‚ the LED indicators will illuminate‚ displaying the charging progress. All four LEDs will be solid when the unit is fully charged. It’s recommended to fully charge the GB20 before its initial use and periodically to maintain optimal performance.
Avoid using high-output chargers (above 5V/2.1A) as they may potentially damage the internal battery. The GB20 also features overcharge protection‚ preventing damage from prolonged charging. Regularly checking the charge level ensures the device is always ready for emergency jump-starting or powering your devices.

Advanced Features & Operation
Explore the GB20’s versatile functions‚ including emergency flashlight modes‚ battery health indicators‚ and potential manual override options for enhanced usability.
Emergency Flashlight Modes (High‚ Low‚ SOS)
The NOCO Boost Sport GB20 incorporates a built-in LED flashlight‚ offering crucial illumination during roadside emergencies or in dark environments. This feature significantly enhances safety and visibility when dealing with a disabled vehicle or performing nighttime repairs. The flashlight boasts multiple operational modes to suit diverse situations.
High Mode: Provides a bright‚ focused beam for maximum visibility‚ ideal for inspecting the engine compartment or signaling for help over a considerable distance. Low Mode: Delivers a softer‚ less intense light‚ conserving battery power while offering sufficient illumination for close-range tasks. This is perfect for reading a manual or working on smaller components.
SOS Mode: Emits a flashing SOS signal‚ internationally recognized as a distress call. This mode is invaluable for attracting attention from passing motorists or emergency services when stranded in a remote location. Activating SOS mode is typically achieved through a dedicated button press or a sequence of button presses‚ as detailed in the full user manual. Understanding and utilizing these flashlight modes can be a lifesaver in critical situations.
Battery Health Indicators and LED Display
The NOCO Boost Sport GB20 features a sophisticated LED display and indicator system‚ providing real-time feedback on the device’s status and battery health. This intuitive interface allows users to quickly assess the unit’s readiness and remaining power capacity before attempting a jump start or utilizing the power bank function.
LED Indicators: A series of LEDs visually represent the remaining charge level of the internal battery. Typically‚ more lit LEDs indicate a higher charge‚ while fewer signify a lower charge. These indicators offer a quick‚ at-a-glance assessment without requiring a precise percentage reading.
Error Indicators: The LED display also incorporates error indicators to alert users to potential issues‚ such as reverse polarity connection or over-voltage protection activation. These warnings are crucial for preventing damage to the jump starter or the vehicle’s electrical system. The manual details the specific meaning of each LED pattern‚ ensuring users can accurately diagnose and address any problems encountered during operation. Regularly monitoring these indicators promotes safe and effective use.
Manual Override Function (If Applicable)
The NOCO Boost Sport GB20 is designed with advanced safety features‚ including automatic error detection. However‚ certain situations might necessitate a manual override to initiate a jump start. This function‚ if present‚ allows users to bypass certain safety protocols under specific‚ controlled circumstances.
Override Procedure: If the device detects a fault – such as a weak battery connection – and refuses to deliver power‚ the manual override may allow a jump start attempt. This typically involves holding a specific button combination for a designated duration‚ as detailed in the user manual. It’s crucial to understand that using the override function should only be done when you’ve verified the correct connection and understand the potential risks.
Safety Considerations: Utilizing the manual override bypasses built-in safety mechanisms. Incorrect usage could potentially damage the jump starter‚ the vehicle’s electrical system‚ or even cause personal injury. Always consult the manual and exercise extreme caution when employing this feature‚ ensuring a secure and proper connection before activation.

Maintenance and Storage
Proper storage keeps the GB20 ready for emergencies. Clean the device with a dry cloth and store it in a cool‚ dry place‚ away from extreme temperatures.
Proper Storage Conditions
To maximize the lifespan and performance of your NOCO Boost Sport GB20‚ adhering to proper storage guidelines is crucial. Ideally‚ store the device in a cool‚ dry environment‚ shielded from direct sunlight and extreme temperatures – both heat and cold can negatively impact the internal lithium battery.
Avoid storing the GB20 in locations prone to humidity or moisture‚ as this can lead to corrosion of the internal components and potentially compromise its functionality. A temperature range between 32°F (0°C) and 104°F (40°C) is recommended for optimal storage.
It’s also advisable to store the device with approximately 50-75% charge. Fully charging or completely depleting the battery before long-term storage can reduce its overall lifespan; Periodically check the charge level (every few months) and top it up if necessary to maintain optimal battery health; Storing it in its original case offers additional protection.
Cleaning and Care Instructions
Maintaining the cleanliness of your NOCO Boost Sport GB20 is essential for its longevity and reliable operation. Regularly wipe down the exterior casing with a soft‚ slightly damp cloth to remove any dirt‚ dust‚ or debris. Avoid using harsh chemicals‚ abrasive cleaners‚ or solvents‚ as these can damage the plastic housing and potentially affect the internal components.
Pay particular attention to the clamps and connection points‚ ensuring they are free from corrosion. If corrosion is present‚ gently clean them with a wire brush or a specialized contact cleaner. Inspect the USB ports for any obstructions and carefully remove them with a non-metallic tool.
Never submerge the device in water or any other liquid. Ensure the GB20 is completely dry before storing or using it. Proper care will help preserve its functionality and ensure years of dependable service. Avoid dropping or subjecting the unit to significant impact.
Battery Maintenance and Lifespan
The NOCO Boost Sport GB20 utilizes a lithium-ion battery‚ requiring specific care to maximize its lifespan and performance. Unlike traditional lead-acid batteries‚ lithium-ion batteries don’t develop a memory effect‚ so complete discharge cycles aren’t necessary. However‚ it’s crucial to avoid prolonged periods of complete discharge or overcharging.
To optimize battery health‚ periodically charge the GB20‚ even when not in use. NOCO recommends charging the device at least once every six months to maintain optimal battery capacity. Store the unit in a cool‚ dry place‚ away from extreme temperatures. Avoid exposing it to direct sunlight or freezing conditions.
The lifespan of the lithium-ion battery will vary depending on usage and storage conditions‚ but with proper maintenance‚ you can expect several years of reliable service. Regularly check the battery health indicators on the device to monitor its condition.

Warranty Information & Support
NOCO provides a warranty covering defects in materials and workmanship. For support‚ access their website or contact customer service for assistance and FAQs.
NOCO Warranty Details
NOCO Boost Sport GB20 products are backed by a limited warranty‚ protecting against manufacturing defects and ensuring customer satisfaction. The standard warranty period is typically 18 months from the original purchase date‚ though this can vary based on specific promotions or retailer agreements.
This warranty covers defects in materials and workmanship under normal use. It does not cover damage resulting from misuse‚ abuse‚ accidents‚ modifications‚ or unauthorized repairs. Evidence of purchase‚ such as a receipt or invoice‚ is required to validate any warranty claim.

To initiate a warranty claim‚ customers should contact NOCO customer support directly. They may request photos or videos documenting the defect. Approved claims will result in either repair or replacement of the defective unit‚ at NOCO’s discretion. The warranty is non-transferable and applies only to the original purchaser. Always retain your proof of purchase for warranty service.
Customer Support Contact Information
For assistance with your NOCO Boost Sport GB20‚ several support channels are readily available. NOCO prioritizes customer satisfaction and offers comprehensive support resources to address any questions or concerns you may have regarding the device’s operation‚ warranty claims‚ or troubleshooting.
You can reach NOCO’s customer support team via their official website‚ www.nooco.com‚ where a detailed FAQ section and online support form are available. Alternatively‚ you can contact them directly by email at support@nooco.com or by phone at +1 800-456-7626.
Their support team is generally available Monday through Friday‚ 9 AM to 5 PM Central Time. NOCO also maintains an active presence on social media platforms like Facebook and Twitter‚ offering another avenue for quick assistance. Be sure to have your product model number and purchase date handy when contacting support for faster service.
Frequently Asked Questions (FAQ)
Q: Can the NOCO Boost Sport GB20 jump start a diesel engine? A: Yes‚ the GB20 can jump start diesel engines up to 3.0L‚ though gasoline engines up to 6.0L are more typical.
Q: How long does the GB20 hold a charge? A: When stored properly‚ the GB20 can retain its charge for over a year. Regular charging (every few months) is recommended for optimal performance.
Q: Can I use the GB20 to charge my laptop? A: While the GB20 has a USB port‚ it may not provide sufficient power for all laptops. Check your laptop’s power requirements before attempting to charge.
Q: What do the LED indicators mean? A: The LEDs indicate the GB20’s charge level and potential error states. Refer to the manual for a detailed explanation of each indicator.