NOCO GB40 Boost Plus: Your Portable Powerhouse for Jump Starting Dead Car Batteries
Dealing with a dead car battery is an inconvenience that every driver dreads, especially when you’re strapped for time or stranded in an unknown location. The NOCO GB40 Boost Plus emerges as a reliable, portable solution, designed to safely bring your vehicle back to life within seconds. In this detailed review, we examine what sets the GB40 apart, its features, usability, and the reasons it’s become a must-have for everyday drivers, adventurers, and professionals alike.
Main Benefits and Key Features
- Powerful Jump Starting Capacity: Delivers 1000 Amps peak current, enabling it to jump start dead 12V batteries in cars, trucks, boats, RVs, motorcycles, and more.
- Support for Large Engines: Capable of starting up to 6.0-liter gasoline and 3.0-liter diesel engines.
- Multi-Use Functionality: Doubles as a portable power bank for USB devices and an emergency flashlight with multiple light modes.
- Advanced Safety Technology: Features spark-proof design and reverse polarity protection for user safety during operation.
- Compact, Portable Design: Small enough to fit in a glove compartment yet powerful enough for professional use.
- Durable Construction: IP65-rated resistance against dust and water, ensuring longevity and performance in all conditions.
Why Choose the NOCO GB40 Jump Starter?
The NOCO GB40 is not just a powerful jump starter; it’s engineered with convenience and user safety in mind. Whether you’re preparing for winter, planning a road trip, or looking to upgrade your roadside emergency kit, here’s why the GB40 is a top-tier contender in the portable jump starter market:
- UltraSafe Technology: Equipped with patented spark-proof technology and reverse polarity protection, the NOCO GB40 allows even first-time users to connect the booster without fear of making costly mistakes or causing sparks.
- Versatile Applications: Not limited to cars — jump start boats, ATVs, lawn mowers, trucks, motorcycles, and more. It is designed to work with all types of 12-volt lead-acid batteries, including wet, gel, maintenance-free (MF), enhanced flooded (EFB), and absorbed glass mat (AGM) types.
- High Number of Jump Starts: Provides up to 20 jump starts on a single charge, giving peace of mind for longer trips or for fleet/regular use.
- Charging Capabilities: Built-in USB port for recharging mobile devices such as phones, tablets, GPS units, and action cameras.
- Emergency Readiness: Includes an integrated 100-lumen LED flashlight with seven illumination modes, including SOS and emergency strobe patterns, for roadside repairs or situations with low visibility.
Technical Specifications
| Feature | Specification |
|---|---|
| Peak Amps | 1000A |
| Supported Batteries | 12V Lead-Acid (Wet, Gel, MF, EFB, AGM) |
| Engine Size Capability | Up to 6.0L Gasoline, 3.0L Diesel Engines |
| Jump Starts Per Charge | Up to 20 |
| Internal Battery | 24 Wh Lithium-Ion |
| USB Input/Output | 5V 2.1A Max (Input & Output) |
| LED Flashlight | 100 lumens; 7 modes (100%/50%/10%/SOS/Blink/Strobe/Off) |
| Protection Rating | IP65 (with ports closed) |
| Product Dimensions | 7.72″ x 3.16″ x 1.71″ (196 x 80.3 x 43.4 mm) |
| Weight | 2.45 lbs (1.11 kg) |
| Warranty | 1-Year Hassle-Free |
What’s in the Box?
- NOCO Boost Plus GB40 Lithium Battery Jump Starter
- Heavy-Duty Precision Battery Clamps
- 12V Car Charger
- USB-C or Micro USB Cable (depending on model year)
- Microfiber Storage Bag
- User Guide and Warranty Information
How to Use the NOCO GB40 Boost Plus
- Ensure the device is fully charged via a USB cable and a standard USB power source. The charge level indicator lets you know when it’s ready.
- Connect the heavy-duty clamps to the battery terminals: red to positive (+), black to negative (-).
- Confirm the indicator lights (UltraSafe features will alert you to improper connections).
- Turn on the GB40 using the power button. If necessary, use the manual override for extremely dead batteries by holding the button until the Boost LED blinks.
- Start your vehicle. Once started, remove the clamps in reverse order and power off the GB40.
Full safety instructions and troubleshooting tips are provided in the user guide, ensuring even beginners are equipped to use the device with confidence.
Real World Performance and User Experience
The GB40 Boost Plus stands out for its ability to deliver instant power and long-lasting reliability. Users report consistent success with jump-starting not only personal vehicles but also recreational equipment like motorcycles and boats. In cold temperatures, on remote trips, or after leaving the lights on overnight, the GB40 performs exceptionally, often providing multiple jump starts from a single charge.
- Fast Power Delivery: Vehicles typically start within seconds. Many users attest that the GB40 jump starts even larger engines under demanding conditions.
- USB Device Charging: The ability to recharge smartphones, tablets, and other gadgets makes the GB40 ideal for emergencies when standard power sources are unavailable.
- LED Flashlight Utility: The integrated flashlight makes battery repairs and jump starts safer at night or in dimly lit areas.
- Low Maintenance: The lithium-ion battery has a slow self-discharge rate—simply top it up every few months if not used frequently.
- Portable Design: Weighing under 2.5 lbs and fitting in most glove boxes, it is easy to bring on any journey.
Safety Features
User safety is a core consideration in the GB40’s design:
- Spark-Proof Connection: Ensures no accidental sparking during connection or disconnection.
- Reverse Polarity Protection: Prevents damage or injury if clamps are attached mistakenly.
- Manual Override: Bypasses internal safety sensors to jump extremely depleted batteries when required.
- Thermal Protection: Built-in safeguards inhibit operation if the device temperature is too hot or cold, protecting the cells and surrounding environment.
Maintenance and Charging Tips
- Recharge the NOCO GB40 after each use and intermittently (every 3-6 months) during long-term storage.
- Store in a cool, dry place, and maintain at least 50% charge for battery longevity.
- To recharge personal devices, connect them via the USB output port and press the power button to begin charging.
Who Should Buy the NOCO GB40?
The GB40 is recommended for:
- Commuters: Provides peace of mind for daily drivers who can’t afford battery setbacks.
- Road Trippers & Adventurers: Ensures power and lighting in remote areas or on camping expeditions.
- Professional Drivers & Fleets: Taxi, delivery, and rideshare operators benefit from having a reliable jump starter close at hand.
- DIY Enthusiasts & Mechanics: Adds a robust, portable jump solution to personal garages or work kits.
Customer Testimonials
“I’ve used my NOCO GB40 for three years and it’s never let me down, even in freezing winter mornings. This tiny device packs a punch!”
“The peace of mind I get knowing I can jumpstart my car or charge my phone on a camping trip is worth every penny.”
“Simple, intuitive, and effective. NOCO’s UltraSafe protection saved me from making a potentially costly mistake with reversed clamps.”
NOCO GB40 vs. Competing Jump Starters
| Feature | NOCO GB40 | Average Competitor |
|---|---|---|
| Peak Amps | 1000A | 600–800A |
| Jump Starts per Charge | 20 | 10–15 |
| Spark-Proof Safety | Yes | Often No |
| Reverse Polarity Protection | Yes | Varies |
| Integrated Flashlight Modes | 7 | 3-5 |
| USB Device Charging | Yes (2.1A) | Yes (often lower) |
| IP Safety Rating | IP65 | Rare or lower |
| Warranty | 1-Year | 6 months–1 year |
Frequently Asked Questions (FAQs)
Q: Can the GB40 jump start larger vehicles like trucks or SUVs?
A: Yes, the GB40 is designed to start gas engines up to 6.0 liters and diesel engines up to 3.0 liters, covering most trucks, SUVs, cars, and boats.
Q: How many jump starts can I get from a full charge?
A: Depending on engine size and battery condition, the GB40 can typically perform up to 20 jump starts on a single full charge.
Q: How long does it take to fully recharge the GB40?
A: Recharge times range from 3 to 12 hours depending on the charging source current (2A is faster, 0.5A is slower). Use a high-output USB wall charger for best results.
Q: Is it safe for inexperienced users?
A: Absolutely. The GB40’s UltraSafe spark-proof and reverse polarity protection make it extremely user-friendly and safe, even for beginners.
Q: Can I use the GB40 as a power bank for my electronics?
A: Yes. The device features a 5V USB output for charging smartphones, tablets, e-watches, and other USB devices.
Q: Does it work in cold weather?
A: The GB40 is built to operate in a range of temperatures, and many users report reliable jump starts even in freezing conditions. For optimal performance, keep the battery stored at moderate temperatures and fully charged.
Q: How do I know if the clamps are connected properly?
A: The UltraSafe system provides visual indicators and will not activate if it detects an unsafe connection, significantly reducing risk of error.
Final Thoughts: Is the NOCO GB40 Worth It?
The NOCO GB40 Boost Plus stands out as a reliable, robust, and easy-to-use jump starter that redefines emergency preparedness for vehicle owners. Its blend of powerful output, comprehensive safety features, versatile utility, and sleek portability ensures it is well worth the investment. Whether you are an occasional commuter or a weekend explorer, adding this jump starter to your glovebox can make the difference between a quick fix and a stressful wait for roadside assistance.
References
- https://no.co/gb40/specs
- https://invertersrus.com/product/noco-boost-plus-gb40-jump-starter/
- https://midstatebattery.com/gb40-geniusboost-plus-lithium-jump-starter
- https://no.co/media/wysiwyg/downloads/brochures/Boost/GB40_Data_Sheet_12.05.2024.pdf
- https://no.co/gb40
- https://accessories.buick.com/product/gb40-boost-plus-1-000-amp-battery-jump-starter-by-noco%C2%AE-associated-accessories-19366935
- https://no.co/gb40/how-to
- https://www.youtube.com/watch?v=NMk5JnU3Wsg
- https://www.igotasti.com/threads/noco-genius-boost-gb40-a-great-little-jump-starter.10602/




