Unexpected car troubles can happen anytime, whether you’re in your driveway or on a remote highway. Being prepared is essential, and that’s where the NOCO GB40 Jump Starter comes in. This compact yet powerful device is designed to get you back on the road quickly, offering a safe and efficient solution for a dead battery.
With a 1000A peak current, the NOCO GB40 can jump-start gasoline engines up to 6.0L and diesel engines up to 3.0L, making it ideal for cars, SUVs, trucks, and even boats. Thanks to its UltraSafe technology, it provides spark-proof connections and reverse polarity protection, ensuring a worry-free experience even for first-time users.
But this jump starter isn’t just about power—it’s built for convenience and durability. Featuring a built-in LED flashlight with multiple modes, a 12V power output, and a USB port for fast charging of mobile devices, it’s a versatile tool for both emergencies and everyday use. Whether you’re preparing for winter conditions or long road trips, the NOCO GB40 is a must-have for every driver.
This best-selling jump starter in the U.S. has earned its reputation for performance, reliability, and ease of use. If you need a dependable, high-quality jump starter, the NOCO GB40 is an investment that ensures peace of mind whenever you’re on the road.
- Start Dead Batteries – Safely jump start a dead battery in seconds with this compact, yet powerful, 1000-amp lithium bat…
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- Multi-Function – It’s a car jump starter, portable power bank, and LED flashlight. Recharge smartphones, tablets, and ot…
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- In The Box – GB40 UltraSafe Portable Car Jump Starter, Heavy Duty Booster Clamps, USB-C Charging Cable, Microfiber Stora…
Key Features of the NOCO GB40 Jump Starter
Powerful Performance for Reliable Starts
The NOCO GB40 delivers an impressive 1000A peak current, allowing it to jump-start gas engines up to 6.0L and diesel engines up to 3.0L. Whether you drive a car, SUV, truck, boat, or motorcycle, this compact yet powerful device ensures a quick and efficient restart, even in freezing temperatures.
Its high-capacity lithium battery provides multiple jump starts on a single charge, making it the perfect companion for road trips, winter conditions, and emergency preparedness.
UltraSafe Technology for Worry-Free Use
Safety is a top priority with the NOCO GB40. Equipped with UltraSafe technology, it features:
- Spark-proof connections to eliminate accidental short circuits.
- Reverse polarity protection to prevent damage if clamps are connected incorrectly.
- Overcharge and overheat protection for secure and reliable operation in all conditions.
This advanced safety system makes it ideal for first-time users, ensuring a hassle-free experience with no risk to your vehicle or battery.
Compact, Durable & Designed for Convenience
Despite its powerful performance, the NOCO GB40 is lightweight and portable, making it easy to store in your glove compartment or trunk. Its rugged construction is built to withstand frequent use and tough environments, making it an essential tool for any driver.
Built-In LED Flashlight for Emergency Situations
The integrated 100-lumen LED flashlight provides crucial visibility in low-light conditions. Featuring seven lighting modes, including SOS and emergency strobe, this flashlight is invaluable for nighttime breakdowns, power outages, or roadside repairs.
USB Charging Port for On-the-Go Power
More than just a jump starter, the NOCO GB40 doubles as a portable power bank. It includes a USB output port to quickly charge your smartphone, tablet, or other USB-powered devices, ensuring you stay connected when you need it most.
Why Choose the NOCO GB40?
1000A peak power to start gas engines up to 6.0L and diesel up to 3.0L.
UltraSafe technology with spark-proof, reverse polarity, and overheat protection.
Compact, lightweight, and rugged design for easy storage and durability.
Built-in 100-lumen LED flashlight with 7 modes for emergency use.
USB power bank to charge smartphones, tablets, and more.
The NOCO GB40 is trusted by thousands of drivers across the U.S. for its power, reliability, and safety features. Whether you’re facing a dead battery or need a reliable backup power source, this jump starter delivers peace of mind wherever you go
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Benefits of Owning the NOCO GB40 Jump Starter
Reliable Power Whenever You Need It
The NOCO GB40 delivers 1000A peak power, making it capable of jump-starting gas engines up to 6.0L and diesel engines up to 3.0L. Whether you drive a car, truck, SUV, or even a boat, this jump starter ensures a quick and efficient start, even in extreme weather conditions.
UltraSafe Technology for Maximum Protection
With NOCO’s UltraSafe technology, the GB40 provides spark-proof connections and reverse polarity protection, reducing the risk of accidental misuse. Its advanced safety features protect both your vehicle and the device, making it a secure and reliable solution for any driver.
Portable and Durable Design
Unlike bulky jump starters, the NOCO GB40 is compact, lightweight, and easy to store in your glove compartment or trunk. Its rugged construction ensures long-lasting durability, making it ideal for frequent use and tough environments.
Built-in LED Flashlight for Emergencies
Equipped with a 100-lumen LED flashlight, the GB40 includes seven lighting modes, such as SOS and emergency strobe, providing visibility and safety during nighttime breakdowns or roadside emergencies.
Multi-Purpose Charging for Convenience
Beyond jump-starting, the GB40 functions as a portable power bank, featuring a USB port to charge smartphones, tablets, and other electronic devices. This feature ensures you stay connected when you need it most.
The Best Investment for Your Vehicle’s Emergency Kit
A dead battery can happen at any time, whether you are on a road trip or simply commuting to work. The NOCO GB40 not only provides the power to jump-start your vehicle but also offers additional features that make it an essential tool for any driver. Its combination of performance, safety, and convenience ensures that you are prepared for any unexpected situation on the road.
If you are looking for a versatile, powerful, and reliable solution, the NOCO GB40 is an investment that guarantees peace of mind in every journey.
Frequently Asked Questions About the NOCO GB40 Jump Starter
How long does it take to fully charge the NOCO GB40?
Charging time depends on the power source. With a 2.1A USB charger, it takes approximately 3 hours to fully charge. Using a lower amperage charger may extend the charging time up to 12 hours. For the best results, use a high-output USB adapter.
How do I know when the NOCO GB40 is fully charged?
The NOCO GB40 has a built-in LED battery indicator. When all four charge level LEDs remain solid (not blinking), the unit is fully charged and ready for use. If the LEDs are still flashing, it means the device is still charging.
What is the warranty on the NOCO GB40?
NOCO offers a one-year limited warranty on the GB40, covering defects in materials and workmanship. To ensure warranty support, register your product on NOCO’s official website and keep proof of purchase.
Does the NOCO GB40 lose charge if not used for a long time?
The NOCO GB40 holds its charge for up to one year when not in use. However, to maintain battery health, it is recommended to recharge it every three to six months, even if it has not been used.
Can the NOCO GB40 be used in extremely cold weather?
Yes, the NOCO GB40 is designed to operate in temperatures as low as -4°F (-20°C). However, for optimal performance in freezing conditions, it is best to store the device in a warmer environment before using it to jump-start a vehicle.
Can the NOCO GB40 jump-start a completely dead battery?
Yes, but if the battery is below 2 volts, the NOCO GB40 may not automatically detect it. In such cases, you will need to use the manual override mode by pressing and holding the Boost button for three seconds before attempting to start the vehicle.
How many jump starts can the NOCO GB40 perform on a single charge?
On a full charge, the NOCO GB40 can provide multiple jump starts. The exact number depends on factors such as engine size and battery condition, but users report it can perform up to 20 jump starts before needing to be recharged.
Still have questions about jump starters? Visit our Jump Starter FAQ page for general tips and answers.
Comparison with Other Models
The NOCO GB40 stands out as one of the most reliable and well-known jump starters in the U.S. market. Thanks to its compact design, UltraSafe technology, and strong performance, it has become a go-to choice for drivers seeking a dependable emergency solution. However, with many jump starters available, how does the GB40 compare to other top competitors?
While some models offer higher peak power or additional features like built-in air compressors, the NOCO GB40 excels in portability, safety, and brand trust. As one of the few American brands in the category, it has built a strong reputation for quality and durability, making it a top contender against other well-known brands.
To help you make an informed decision, we have put together a detailed comparison of the best jump starters on the market. Explore how the NOCO GB40 stacks up against the competition and find out if it’s the right choice for your needs.
Other NOCO Jump Starter Models
The NOCO lineup offers a wide range of high-quality jump starters, catering to all types of vehicles—from compact cars to heavy-duty trucks. Each model is designed to meet specific needs, whether it’s higher peak power, additional safety features, or increased portability. Thanks to its trusted reputation and advanced technology, NOCO has become one of the leading brands in battery jump starters.
If you’re looking for a jump starter with specific features or one that fits your budget and vehicle type, NOCO provides a variety of reliable options that blend innovation and performance. You can explore our brand section to find detailed information on all available models.
Below, we highlight some of NOCO’s top-rated jump starters, perfect for those seeking durable, high-performing, and efficient solutions for roadside emergencies.
How to Use the NOCO GB40 Jump Starter
The NOCO GB40 is designed for ease of use, making it accessible for both experienced and first-time users. Follow these step-by-step instructions to safely jump-start your vehicle and get back on the road quickly.
Step-by-Step Guide to Jump-Starting Your Vehicle
- Check the Battery Level
- Ensure the NOCO GB40 is fully charged before use.
- If the battery level is low, charge it using the included USB cable before attempting to jump-start your vehicle.
- Connect the Clamps to the Battery
- Attach the red clamp to the positive (+) terminal of the battery.
- Attach the black clamp to the negative (-) terminal or to an unpainted metal surface on the vehicle’s frame.
- Turn On the GB40
- Press the power button and check that the LED indicators light up, confirming the device is active.
- Start Your Vehicle
- Once the clamps are properly connected and the jump starter is powered on, start your vehicle.
- If the engine doesn’t start immediately, wait 30 seconds and try again.
- Disconnect the Device
- Once the vehicle is running, turn off the jump starter and remove the clamps in reverse order (black clamp first, then red).
Using the Manual Override (Forced Start Mode)
If your vehicle’s battery is completely drained and the NOCO GB40 does not detect sufficient voltage, you may need to use the manual override function:
- Ensure the clamps are correctly connected (red to positive, black to negative).
- Press and hold the manual override button (the exclamation mark icon) for three seconds until the indicator lights up.
- Attempt to start the vehicle immediately.
- Once the vehicle starts, disconnect the clamps in reverse order.
Note: Use this mode only when necessary, as it bypasses safety features.
Charging Devices with the NOCO GB40
- Connect your device using the included USB port.
- Ensure the GB40 has enough battery before charging.
- Press the power button to begin charging your smartphone, tablet, or other USB-powered devices.
Safety Tips for Proper Use
–Never touch the clamps together while the device is on.
–Ensure a secure connection to avoid sparks or malfunctions.
–Recharge the GB40 after each use to ensure it is always ready for emergencies.
–Store the device in a cool, dry place when not in use.
The NOCO GB40 Jump Starter is designed to be user-friendly and highly effective, ensuring you’re always prepared for roadside emergencies. By following these simple steps, you can safely and efficiently jump-start your vehicle whenever needed.
- Start Dead Batteries – Safely jump start a dead battery in seconds with this compact, yet powerful, 1000-amp lithium bat…
- UltraSafe – Safe and easy-to-use car jumper starter and jump pack without worrying about incorrect connections or sparks…
- Multi-Function – It’s a car jump starter, portable power bank, and LED flashlight. Recharge smartphones, tablets, and ot…
What’s in the Box?
The NOCO GB40 Jump Starter includes everything you need to handle battery-related emergencies with ease. Inside the package, you will find:
- NOCO GB40 UltraSafe Lithium Jump Starter – Compact and powerful, designed for gas engines up to 6.0L and diesel engines up to 3.0L.
- Heavy-Duty Battery Clamps – High-quality clamps with spark-proof and reverse polarity protection for safe operation.
- Micro-USB Charging Cable – For convenient charging via USB power sources, ensuring the device is always ready.
- Storage Bag – Durable, compact, and protective, making it easy to store in your glove compartment or trunk.
- User Guide & Safety Manual – Clear and detailed instructions to help you use the device safely and efficiently.
With these essential accessories, the NOCO GB40 is a ready-to-use solution for jump-starting your vehicle and staying prepared for emergencies.
Pros and Cons of the NOCO GB40 Jump Starter
Below, we break down the main advantages and drawbacks of the NOCO GB40, based on user feedback and expert reviews.
🟢 Pros:
- Compact and Easy to Carry
The NOCO GB40 is lightweight, weighing only 2.4 lbs, making it highly portable and convenient for storage in a glove compartment or trunk. - Simple and Intuitive Operation
With a straightforward design and clear instructions, the GB40 is beginner-friendly, allowing even first-time users to operate it with confidence. - Durable and Weather-Resistant
Built with an IP65-rated casing, this jump starter is water-resistant and designed to withstand harsh conditions, making it ideal for long-term reliability. - Versatile Functionality
Beyond jump-starting, the GB40 doubles as a power bank, offering USB charging for smartphones and other devices. It also includes a 100-lumen LED flashlight with multiple modes, including SOS and emergency strobe, making it useful in roadside situations.
🔴 Cons:
- Not Ideal for Larger Engines
While powerful, the GB40 is best suited for gas engines up to 6.0L and diesel engines up to 3.0L. For larger V8 engines, its jump-starting capability may be less effective, especially if the battery is completely drained. - Takes Time to Recharge
Charging the GB40 through a USB port on a computer or standard charger can be slow. Using a high-speed wall adapter is recommended to shorten charge times. - Short Battery Clamps
The included jumper cables are relatively short, which may require careful positioning of the jump starter to ensure a proper connection to the battery terminals.
User Reviews of the NOCO GB40
- Start Dead Batteries – Safely jump start a dead battery in seconds with this compact, yet powerful, 1000-amp lithium bat…
- UltraSafe – Safe and easy-to-use car jumper starter and jump pack without worrying about incorrect connections or sparks…
- Multi-Function – It’s a car jump starter, portable power bank, and LED flashlight. Recharge smartphones, tablets, and ot…
Power: ★★★★☆ (4/5) – «Effectively starts smaller engines, though may struggle with larger V8s.»
Ease of Use: ★★★★★ (5/5) – «User-friendly design with clear instructions, making it accessible for all drivers.»
Value for Money: ★★★★☆ (4/5) – «Compact and reliable, though some find the price point higher compared to alternatives.»
Additional Features: ★★★★☆ (4/5) – «Built-in flashlight and USB charging are beneficial, but the short jumper cables can be limiting.»
Final Thoughts
The NOCO GB40 Jump Starter is a highly portable, durable, and user-friendly option for drivers looking for a reliable emergency tool. However, those with larger vehicles or specific power needs may want to consider its limitations before making a purchase.
Overall Evaluation
The NOCO GB40 Jump Starter is an essential tool for drivers looking for reliability and convenience in one compact device. With powerful jump-starting capabilities, a user-friendly design, and advanced safety features, it effectively addresses one of the most common roadside issues—a dead battery. While it has a few limitations, its strong performance, durability, and additional features make it a solid investment for any vehicle owner.
Critical Analysis of the NOCO GB40
The NOCO GB40 is more than just a basic jump starter—it’s a highly portable and efficient solution designed to meet the needs of everyday drivers. With 1000A peak power, it can jump-start gas engines up to 6.0L and diesel engines up to 3.0L, making it suitable for cars, SUVs, trucks, motorcycles, and even boats.
One of its standout features is its UltraSafe technology, which includes spark-proof connections and reverse polarity protection, ensuring a worry-free jump-start experience. This makes it an ideal choice for first-time users or those unfamiliar with battery maintenance.
Additionally, the built-in LED flashlight with seven lighting modes enhances safety in low-light situations, while the USB charging port allows drivers to keep their smartphones and other devices powered on the go.
However, like any device, it has some drawbacks. Its jumper cables are relatively short, which may require careful positioning when connecting to the battery. Also, recharging the GB40 through a standard USB port takes time, making it necessary to use a high-speed wall charger for faster charging. Finally, while it performs well for most vehicles, drivers with larger V8 engines may find it less effective, especially if the battery is completely drained.
General User Rating for the NOCO GB40
- Power: ⭐⭐⭐⭐☆ – 4.1/5 – «Provides strong performance for most vehicles, but may struggle with larger engines.»
- Ease of Use: ⭐⭐⭐⭐⭐ – 5.0/5 – «Straightforward operation and clear instructions make it accessible for all users.»
- Value for Money: ⭐⭐⭐⭐☆ – 4.5/5 – «Reliable and well-built, though priced slightly higher than some competitors.»
- Additional Features: ⭐⭐⭐⭐☆ – 4.0/5 – «Useful built-in flashlight and USB charger, but short jumper cables could be improved.»
Final Rating: ⭐⭐⭐⭐☆ – 4.5/5
«The NOCO GB40 offers a great balance of power, safety, and convenience, making it one of the best jump starters for everyday drivers looking for reliability and ease of use.»
Why Choose the NOCO GB40?
The NOCO GB40 Jump Starter is a compact, powerful, and user-friendly solution for vehicle emergencies. Whether you need to jump-start your car, charge your phone, or illuminate a dark roadside, this device provides peace of mind wherever you go.
If you value independence and preparedness, the NOCO GB40 is a smart investment that ensures you’re never left stranded due to a dead battery. Its strong performance, durable design, and safety features make it one of the best options on the market.
Ready to Buy the NOCO GB40 Jump Starter?
Don’t risk being stuck with a dead battery! The NOCO GB40 is the ultimate roadside companion for emergencies. Order now and drive with confidence, knowing you have a reliable solution at your fingertips.