noco boost gb40 jump starter manual
- by laurianne
Welcome to the NOCO Boost GB40 manual‚ your comprehensive guide to safely and effectively using this portable lithium-ion jump starter. Designed for cars‚ boats‚ and trucks‚ this manual covers key features‚ safety tips‚ and troubleshooting to ensure optimal performance and user safety. Learn how to harness the power of UltraSafe technology and USB charging capabilities for reliable jump-starting and power on the go.
What is the NOCO Boost GB40?
The NOCO Boost GB40 is a portable lithium-ion jump starter designed to deliver 1‚000 amps of power for jump-starting vehicles. It is an ultra-compact and lightweight device‚ making it easy to carry in cars‚ boats‚ RVs‚ or trucks. The GB40 supports vehicles with gas engines up to 6 liters and diesel engines up to 3 liters‚ providing reliable starting power even in challenging conditions. Equipped with UltraSafe technology‚ it ensures spark-proof connections and reverse polarity protection for enhanced safety. Additionally‚ the GB40 features a Manual Override mode for jump-starting batteries below 2 volts‚ though this disables certain safety features. It also includes USB charging capabilities‚ allowing users to charge smartphones or other devices on the go. The GB40 is compatible with 12-volt lead-acid batteries and is designed for both professional and casual use‚ making it a versatile tool for emergencies and everyday needs.
Why Use a Jump Starter Manual?
A jump starter manual is essential for ensuring safe and effective use of the NOCO Boost GB40. It provides detailed instructions on how to operate the device‚ helping users understand its features‚ limitations‚ and proper maintenance. The manual serves as a comprehensive guide‚ eliminating guesswork and reducing the risk of errors that could damage the unit or pose safety hazards. It also includes troubleshooting tips to resolve common issues‚ such as failed jump starts or charging problems. By following the manual‚ users can maximize the lifespan of their GB40 and ensure it performs optimally in emergencies. Additionally‚ the manual highlights safety precautions to prevent accidents‚ such as improper connections or overcharging. Whether you’re a first-time user or experienced‚ the manual is a vital resource for getting the most out of your NOCO Boost GB40 while staying safe and informed.
Key Features of the NOCO Boost GB40
The NOCO Boost GB40 is a compact lithium-ion jump starter with 4000A peak current‚ capable of jump-starting vehicles up to 40 liters. It features UltraSafe technology‚ USB-C charging‚ and an LED flashlight‚ making it a versatile emergency tool for drivers.
Technical Specifications
The NOCO Boost GB40 is a powerful lithium-ion jump starter with a 35Wh battery capacity‚ designed to deliver 4000A of peak current. It supports jump-starting vehicles with up to 40-liter gasoline engines and 30-liter diesel engines. The unit weighs 7.5 pounds and measures 9.5 x 7.25 x 5.5 inches‚ making it highly portable. The GB40 includes dual USB ports (USB-C with Power Delivery and a standard USB-A) for charging smartphones and other devices. It also features a built-in LED flashlight with multiple modes‚ including SOS and strobe. The device is equipped with safety certifications such as UL and CE‚ ensuring reliable performance. Its compact design and robust capabilities make it an essential tool for drivers seeking a reliable emergency jump starter. The GB40 is compatible with 12V vehicles and includes a 2-year warranty for added peace of mind.
UltraSafe Technology
The NOCO Boost GB40 incorporates UltraSafe Technology‚ a multi-layered safety system designed to protect users‚ vehicles‚ and the device itself from electrical hazards. This advanced technology includes automatic voltage detection‚ spark-proof connections‚ and reverse polarity protection‚ ensuring safe and error-free operation. It prevents overcharging‚ overheating‚ and short circuits‚ making it one of the safest jump starters on the market. UltraSafe Technology also provides visual and auditory cues to alert users of potential issues‚ such as incorrect clamp connections. This feature enhances user confidence‚ especially for those unfamiliar with jump-starting procedures. By eliminating the risk of sparks and electrical surges‚ UltraSafe Technology ensures a secure and reliable experience‚ protecting both the vehicle and the jump starter from damage. This innovative system is a key reason why the GB40 is trusted for emergency situations.

USB Charging Capabilities
The NOCO Boost GB40 features dual USB ports‚ providing convenient and efficient charging for smartphones‚ tablets‚ and other portable devices. With a total output of 5V/3A‚ these ports deliver fast and reliable charging‚ ensuring your devices stay powered even in emergencies. The GB40 acts as a portable power bank‚ making it ideal for camping trips‚ road trips‚ or anytime you need to charge devices away from a wall outlet. The USB ports are designed with overcharge protection‚ preventing damage to your devices. This capability enhances the GB40’s versatility‚ transforming it into a multi-functional tool that goes beyond jump-starting vehicles. Whether you’re charging your phone or other gadgets‚ the GB40 ensures you stay connected and powered on the go. This feature makes it a must-have accessory for everyday use and unexpected situations.
Charging the NOCO Boost GB40
The GB40 includes a USB charging cable for easy recharging. Connect it to a wall adapter or USB port. LED indicators show charging progress and completion.
How to Charge the GB40
To charge the NOCO Boost GB40‚ locate the USB port on the device and use the provided USB charging cable. Plug one end into the GB40 and the other into a power source‚ such as a wall adapter‚ car charger‚ or USB port on a computer. The LED indicators will illuminate to show charging progress. Charging time varies based on the power source and battery capacity. Avoid using the device while charging for safety. Once fully charged‚ store the GB40 in a cool‚ dry place to maintain battery life. Always follow the manual’s guidelines for optimal charging and storage.

Understanding the LED Indicators
The NOCO Boost GB40 features LED indicators that provide important status updates. The LEDs are located on the front of the device and display different colors and patterns to communicate charging‚ battery level‚ and error statuses. When charging‚ the LEDs will flash to indicate progress‚ with the number of illuminated LEDs showing the charge level. A solid green light signals a full charge‚ while yellow indicates partial charging. Red LEDs warn of low battery or potential issues. Flashing red LEDs may indicate an error‚ such as short circuits or improper connections. Understanding these indicators helps users monitor the device’s status and ensure safe operation. Always refer to the manual for detailed explanations of LED patterns and troubleshooting. Proper interpretation of these signals is key to maintaining the GB40’s performance and longevity.

Using the NOCO Boost GB40 for Jump Starting
The NOCO Boost GB40 simplifies jump starting with its portable design and safety features. It ensures reliable starts for vehicles with dead batteries‚ providing peace of mind in emergencies.
Step-by-Step Guide to Jump Starting
To jump start a vehicle‚ begin by ensuring both the GB40 and the vehicle are turned off. Locate the vehicle’s battery and identify the positive (+) and negative (-) terminals. Connect the GB40’s positive (red) clamp to the vehicle’s positive terminal. Next‚ attach the negative (black) clamp to a sturdy metal ground on the vehicle’s frame‚ avoiding the negative battery terminal. Turn on the GB40 and attempt to start the vehicle. Once the engine starts‚ remove the clamps in the reverse order: negative first‚ then positive. Allow the vehicle to run for a few minutes to recharge the battery. If the vehicle does not start‚ refer to the troubleshooting section or seek professional assistance. Always follow safety guidelines to avoid injury or damage.
Connecting the Clamps Correctly
When connecting the clamps to the battery‚ always start with the positive (red) clamp. Attach it firmly to the positive (+) terminal of the vehicle’s battery. Ensure a secure connection to avoid any loose contact. Next‚ connect the negative (black) clamp to a clean‚ bare metal surface on the vehicle’s frame or engine block. Avoid attaching the negative clamp directly to the negative (-) battery terminal to prevent potential electrical issues. Double-check that the clamps are not touching any moving parts or flammable materials. Make sure the clamps are securely locked onto the terminals to maintain a stable connection. If the clamps are not connected correctly‚ the jump start may fail or cause damage. Always refer to the manual for visual guidance and follow safety precautions to avoid short circuits or sparks.
Starting the Vehicle
Once the clamps are correctly connected‚ ensure the vehicle’s transmission is in park (automatic) or neutral (manual). Turn the ignition switch to the “start” position and allow the engine to crank for 2-3 seconds. If the vehicle does not start immediately‚ wait 30 seconds before attempting again to allow the GB40 to recover. Avoid multiple rapid attempts‚ as this may drain the jump starter’s battery. If the engine starts‚ let it run for a few minutes to recharge the vehicle’s battery. Do not leave the GB40 connected once the vehicle is running. Immediately disconnect the clamps‚ starting with the negative (black) clamp to prevent any sparks or electrical issues.
Always ensure children and bystanders are at a safe distance during the process. Keep loose clothing and flammable materials away from the battery and clamps.
Post-Jump Start Procedures
After successfully starting the vehicle‚ immediately disconnect the GB40 jump starter. Begin by removing the negative (black) clamp from the vehicle’s chassis or a grounded metal surface‚ followed by the positive (red) clamp from the battery terminal. This prevents any potential sparks or electrical issues. Once disconnected‚ inspect the clamps and cables for damage or wear‚ ensuring they are clean and free of corrosion before storing the GB40.
Recharge the GB40 as soon as possible‚ even if it still has some charge left‚ to maintain its performance and longevity. If the vehicle’s battery was the cause of the issue‚ allow it to charge for at least 30 minutes before turning on high-drain accessories like lights or the radio. If the problem persists‚ consider consulting a professional mechanic to assess the battery or electrical system.
Safety Precautions and Warnings
Always wear protective eyewear and ensure the area is well-ventilated. Avoid short circuits and keep the GB40 away from flammable materials. Never use in explosive environments or near open flames. Disconnect immediately after jump starting to prevent electrical hazards.
Important Safety Information
Always follow safety guidelines to avoid risks when using the NOCO Boost GB40. Improper use can lead to electrical shock‚ fire‚ or personal injury; Wear protective eyewear and ensure the device is used in a well-ventilated area. Never touch the clamps to each other or connect them to non-battery terminals. Keep the GB40 away from water and avoid using it in extreme temperatures or flammable environments. Properly handle the clamps to prevent short circuits‚ as this can cause damage or explosion. Do not use damaged cables or connectors‚ as they may pose a fire hazard. Ensure the vehicle’s ignition is off during jump starting and avoid smoking near the device. Store the GB40 in a dry‚ cool place‚ out of reach of children. Never modify the device or bypass safety features. Follow all warnings and instructions in this manual to ensure safe operation. Failure to comply may result in serious injury or device malfunction.
Proper Handling and Storage
To ensure the longevity and safety of your NOCO Boost GB40‚ proper handling and storage are essential. Always store the device in a cool‚ dry place‚ away from direct sunlight and extreme temperatures. Avoid exposing it to moisture or humidity‚ as this can damage the internal components. Never store the GB40 in a location where it could be crushed or subjected to heavy impact. Clean the device periodically with a soft cloth to remove dirt or debris‚ but avoid using harsh chemicals or abrasive materials. When not in use‚ ensure the clamps are securely attached to the unit to prevent accidental short circuits. Store the GB40 in its original case or a protective pouch to shield it from damage. Keep it out of reach of children and pets to prevent unintended use. Regularly inspect the cables and clamps for signs of wear or damage before storing. By following these guidelines‚ you can maintain the performance and reliability of your NOCO Boost GB40 for years to come.
Emergency Procedures
In case of an emergency while using the NOCO Boost GB40‚ follow these steps to ensure safety and minimize potential damage. If the device overheats‚ immediately disconnect it from the vehicle and turn it off. Allow it to cool down before further use. If sparks occur during a jump start‚ stop the process and check the clamps for proper connection. Never touch the clamps to each other‚ as this can cause a short circuit. If the GB40 fails to start the vehicle‚ do not repeatedly attempt to jump start it‚ as this may drain the battery further. Instead‚ check all connections and ensure the vehicle’s battery is compatible with the GB40. In case of a fire or smoke‚ evacuate the area and contact emergency services. Always refer to the manual for detailed troubleshooting or contact NOCO customer support for assistance.
Maintenance and Troubleshooting
Regularly inspect the GB40 for damage and clean terminals to ensure optimal performance. Store it in a cool‚ dry place. If issues arise‚ refer to the manual for troubleshooting guides or contact NOCO support for assistance.
Maintenance Tips
Keep the NOCO Boost GB40 in peak condition by regularly checking its battery level using the LED indicators. Clean the clamps and terminals with a soft cloth or wire brush to prevent corrosion. Avoid overcharging‚ as it can reduce battery life. Store the unit in a cool‚ dry place‚ away from direct sunlight and extreme temperatures. Ensure the GB40 is fully charged every 6 months if not in use for extended periods; For optimal performance‚ recharge the device as soon as the battery level drops below 20%. Always follow the manufacturer’s guidelines for charging and maintenance to prolong its lifespan. Proper care ensures reliability and safety when you need it most.
Troubleshooting Common Issues
If the NOCO Boost GB40 fails to turn on‚ ensure it is fully charged and the power button is functioning. If the device does not charge‚ check the USB-C port for debris or damage and verify the charger is compatible. For jump-starting issues‚ ensure the clamps are securely connected to the correct terminals and the battery is not deeply discharged. If the LED indicators flash erratically‚ it may indicate a faulty battery or internal error. Reset the device by charging it for 10 minutes and retrying. If problems persist‚ consult the manual or contact customer support. Regularly updating the firmware‚ if available‚ can also resolve unexpected issues. Always follow troubleshooting steps carefully to avoid further complications.

Advanced Features of the NOCO Boost GB40
The GB40 includes an integrated LED light‚ USB-C enhancements‚ and a manual override mode for advanced control. Its multi-device charging capabilities and compact design make it versatile for various needs.
Manual Override Mode

The Manual Override Mode on the NOCO Boost GB40 provides advanced control for jump-starting vehicles with deeply discharged batteries. This feature allows users to bypass the automatic safety sensors‚ enabling a jump start even when the battery voltage is too low for the device to detect. It is particularly useful in extreme cold weather or when dealing with high Compression engines. To activate‚ press and hold the boost button for 3 seconds until the LED flashes red. Always use caution‚ as this mode disables some safety protections. Ensure proper clamp connections to avoid risks. The GB40 still maintains essential safety features‚ such as spark protection‚ even in manual mode. This feature underscores the GB40’s versatility for experienced users while maintaining core safety standards.
USB-C Enhancements
The NOCO Boost GB40 features advanced USB-C enhancements‚ offering faster and more efficient charging for modern devices. This port supports USB-C Power Delivery (PD)‚ enabling rapid charging of smartphones‚ tablets‚ and laptops. With a maximum output of 18W‚ it can charge devices up to 75% faster than standard USB ports. The USB-C port also supports reverse charging‚ allowing the GB40 to be recharged quickly via a compatible USB-C charger. This dual-functionality makes the GB40 a versatile power bank for on-the-go use. Additionally‚ the USB-C port is designed with safety in mind‚ featuring built-in protections against overcharging‚ overheating‚ and short circuits. The LED indicator provides clear feedback on charging status‚ ensuring a seamless user experience. These enhancements make the GB40 an ideal companion for drivers and outdoor enthusiasts seeking reliable power solutions.

Warranty and Support
The NOCO Boost GB40 is backed by a limited warranty covering manufacturing defects for a specified period. Dedicated customer support is available for troubleshooting and assistance‚ ensuring reliable help when needed.
Warranty Information
The NOCO Boost GB40 is protected by a limited warranty that covers manufacturing defects and ensures product reliability. The warranty period typically lasts for two years from the date of purchase‚ provided the device is used as specified in the manual. During this time‚ NOCO will repair or replace defective units free of charge. Users are encouraged to register their product to validate the warranty and access exclusive support benefits. The warranty does not cover damage caused by misuse‚ tampering‚ or external factors. For detailed terms and conditions‚ refer to the warranty section in the manual or visit the official NOCO website.
Contacting Customer Support

For any inquiries‚ troubleshooting‚ or assistance with the NOCO Boost GB40‚ customers can contact NOCO’s dedicated customer support team. Support is available via phone‚ email‚ or live chat through the official NOCO website. The team operates Monday through Friday‚ 8:30 AM to 5:00 PM EST‚ and aims to respond to queries within 24 hours. Users are encouraged to visit the support page on NOCO’s website for helpful resources‚ including FAQs‚ manuals‚ and troubleshooting guides. When reaching out‚ provide the product serial number and a detailed description of the issue for faster resolution. NOCO’s customer support is committed to ensuring a smooth and satisfying experience with the Boost GB40.

Accessories and Compatible Products
The NOCO Boost GB40 is compatible with various accessories‚ including carrying cases‚ USB-C cables‚ and multi-tip connectors‚ available on the official NOCO website for enhanced functionality.

Recommended Accessories
To enhance your experience with the NOCO Boost GB40‚ consider these recommended accessories: a durable carrying case for safe storage‚ a USB-C cable for faster charging‚ and a multi-tip connector for versatility. Additionally‚ a heavy-duty jumper cable set ensures optimal performance‚ while a portable power bank extends your GB40’s functionality. These accessories are designed to complement the jump starter’s capabilities‚ providing convenience and reliability in emergencies. For the best compatibility and quality‚ purchase these items directly from NOCO’s official website or authorized retailers. By investing in these accessories‚ you can maximize the utility of your GB40 and ensure it remains a dependable tool for years to come.
The NOCO Boost GB40 is a reliable‚ portable‚ and powerful jump starter designed for emergencies. Its user-friendly interface‚ advanced safety features‚ and durability make it an essential tool for any driver.
Final Thoughts on the NOCO Boost GB40
The NOCO Boost GB40 is an exceptional portable jump starter that combines power‚ safety‚ and convenience. Its compact design and lightweight construction make it easy to carry‚ while its advanced UltraSafe technology ensures safe and efficient jumps. The GB40’s ability to charge USB devices adds versatility‚ making it a reliable companion for emergencies and everyday use. With its clear LED indicators and straightforward interface‚ it’s user-friendly even for those less familiar with jump starters. The GB40 supports a wide range of vehicles‚ from cars to trucks‚ and its durable build ensures long-term reliability. Whether you’re a driver‚ outdoor enthusiast‚ or someone who wants peace of mind on the road‚ the NOCO Boost GB40 is a must-have tool. Its blend of performance‚ safety‚ and convenience makes it a standout choice in the world of portable jump starters.
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