Product Features and Description
When your car battery fails, the NOCO Boost Plus GB40 1000A UltraSafe Car Battery Jump Starter is your go-to solution. Designed not only to revive dead batteries in vehicles up to 6.0L gasoline and 3.0L diesel engines, this NOCO jump starter serves as a versatile power booster and portable charger. Its effectiveness isn’t just limited to automotive emergencies. This compact yet powerful device can also charge gadgets, making it essential for camping trips or other off-grid adventures where power sources are scarce.
Stay tuned as we dive deep into the features of the NOCO Boost Plus GB40, gather user opinions, explore expert reviews, showcase videos, compare it against competitors, and highlight the most attractive market offers available for this essential car battery booster.

- Powerful and Versatile NOCO Jump Starter: Quickly and efficiently start dead batteries with this powerful 1000-amp lithium battery jump starter. Capable of up to 20 jump starts on a single charge, it’s designed for gasoline engines up to 6.0 liters and diesel engines up to 3.0 liters.
- UltraSafe Technology: Enjoy a safe and easy-to-use car jump starter experience. The NOCO jump starter features a mistake-proof design with spark-proof technology and reverse polarity protection, ensuring no worries about incorrect connections or sparks when connecting to any 12-volt vehicle.
- Multi-Functional Tool: This device isn’t just a car jump starter but also acts as a portable power bank and an LED flashlight. You can recharge smartphones, tablets, and other USB devices. It charges quickly from any powered USB port in about 3 hours at 2.1 amps. Additionally, it includes a 100-lumen LED flashlight with seven light modes, such as emergency strobe and SOS, for added safety and utility.
- Advanced and Durable Design: The NOCO jump starter boasts a state-of-the-art design with high-discharge lithium technology that ensures safe operation in any climate. Its rugged, water-resistant enclosure is IP65 rated, and the rubberized over-molded casing helps prevent scratches or marring of surfaces. The device is ultra-compact and lightweight, weighing just 2.4 pounds.
- Comprehensive Package: The package includes the GB40 UltraSafe Portable Car Jump Starter, heavy-duty booster clamps, a 12-volt car charger, a micro USB charging cable, a microfiber storage bag, and a user guide. It comes with a 1-year warranty and is designed in the USA, ensuring reliability and quality.

The NOCO GENIUS BOOST GB40 is a highly portable and compact lithium-ion jump starter, designed specifically for 12-volt batteries. This NOCO jump starter can safely rejuvenate a dead battery in mere seconds, offering up to 20 jump starts on a single charge. With spark-proof technology and reverse polarity protection, it ensures a mistake-proof operation, making it highly user-friendly and safe for anyone to use.
Additionally, the GB40 features an integrated high-output 100-lumen LED flashlight with seven different light modes, including low, medium, high, flashing, strobe, and emergency SOS. This versatile device can hold its charge for up to one year without needing a recharge. An internal battery pack allows it to serve as a power bank, capable of recharging personal mobile devices such as smartphones, tablets, and other USB devices. It can also be recharged through any powered USB port.
Rated at 1,000 amps, this powerful car battery booster is suitable for gasoline engines up to 6.0 liters and diesel engines up to 3.0 liters, covering a wide range of vehicles including cars, motorcycles, ATVs, boats, trucks, SUVs, RVs, and even lawnmowers. The combination of its compact design and high functionality makes the NOCO GENIUS BOOST GB40 an essential tool for any vehicle owner.

Key Features and Performance of the NOCO Boost Plus GB40 Jump Starter
Feature | Description |
---|---|
Amperage Excellent | The NOCO jump starter provides 1000 Amps peak current, which is crucial for jump-starting a dead battery in seconds. This amperage is suitable for up to 6.0L gasoline and 3.0L diesel engines, making it highly versatile and effective for emergency situations. |
Battery Type Good | Equipped with Lithium Metal batteries, the NOCO jump starter ensures high efficiency and long battery life. Lithium batteries are known for their high energy density and lighter weight compared to traditional lead-acid batteries. |
Special Features Excellent | The GB40 model includes a 100-lumen LED flashlight, a portable power bank for USB devices, and offers reverse polarity and spark-proof protection. These features not only enhance the utility of the jump starter but also ensure safety during use. |
Peak Output Current Excellent | The peak output current of 1000 Amps is crucial for providing the necessary power to jump-start the vehicle’s battery. This high peak current can jump-start most cars multiple times on a single charge. |
Get ready for any roadside emergency with top-rated jump starters. Leading the pack is the NOCO Boost Plus GB40, perfect for 6.0L gasoline and 3.0L diesel engines. Discover more options in our comprehensive roundup here.

What Are the Upsides and Downsides of the Car Battery Booster
Highly Reliable and Effective – The NOCO Boost Plus GB40 has proven to be a dependable tool for many users. According to Amazon Customer, it “actually SAVED MY DAY” by providing simple, easy-to-follow instructions. Robert L. shared a similar experience, stating that his completely dead battery started right up after using this jump starter.
Easy to Use and Portable – This product stands out for its user-friendly design and portability. MissSlick praised its lightweight and versatile nature, highlighting that it “comes with its own carry bag which helps keep it clean stored in the trunk of my car.” The ease of operation was echoed by Linda T, who noted that the product “seems simple” to use.
Long-lasting and Convenient – Many users appreciate the NOCO Boost Plus GB40 for its long-lasting charge and convenience. JM remarked that it is “just as essential in the trunk as a jack and spare tire,” and Friendly ghost confirmed that it “had a full charge” even after sitting in their car for six months, showcasing its reliability over time.
Inconsistent Performance – Some users have reported issues with the product’s performance. Geoff Davis mentioned that the jump starter did not work on either his 6-cylinder jeep or 4-cylinder car, suggesting that it might “work on a motorcycle.” Similarly, Valerie was disappointed when it couldn’t start her V6 Accord despite being fully charged.
Charging Issues – There have been complaints regarding the device’s ability to hold a charge over time. Dave K. experienced difficulties with the jump starter, stating that it barely started his car and “gave me too much of a sense of being prepared and only let me down.” This inconsistency can be a significant drawback for users relying on the product in emergencies.
The stars speak of…
Opinions about this product were divided in such a proportion among the buyers.
I have ordered this exact same Nocco before, but it came with a semi hard carrying case before. I expected it to come with the case again and it did not. I have not yet attempted to use this so I will update my review when I do.
Didn’t really work well Took way too long
Insights & Inquiries: Getting to the Heart of Your Questions
How many times can this jump starter jump-start a vehicle on a single charge?This portable jump starter can safely jump-start a dead battery up to 20 times on a single charge, making it highly reliable for multiple uses before needing to be recharged.
What types of vehicles can this jump starter be used on?This versatile jump starter is suitable for a wide range of vehicles, including cars, motorcycles, ATVs, boats, trucks, RVs, SUVs, and even lawnmowers. It supports gasoline engines up to 6.0 liters and diesel engines up to 3.0 liters.
Is it safe to use for someone with no experience?Absolutely. This jump starter features spark-proof technology and reverse polarity protection, making it mistake-proof and safe for anyone to use, even those with no prior experience.
How long can the jump starter hold its charge?The internal battery of this jump starter can hold its charge for up to one year without needing to be recharged, providing peace of mind for those who may not use it frequently.
Can this device charge other electronic devices?Yes, it can. The internal battery pack can recharge any personal mobile device, such as smartphones, tablets, or other USB devices, making it a handy portable charger as well.
What are the special features of the built-in flashlight?The integrated high-output LED flashlight has seven light modes: low, medium, high, flashing, strobe, and emergency SOS. This makes it versatile for various situations, from basic illumination to emergency signaling.
What is the weight and size of this jump starter?This jump starter is lightweight and compact, weighing just 7.9 ounces with dimensions of 4.61 inches in depth, 8.19 inches in width, and 4.21 inches in height. This makes it easy to store and carry around.

Mun Kin Chang –
Would not charger in less than 2 years
This is a complete junk product because it wouldn’t charge in less than 2 years and I only used it once. I bought it on November 4, 2022, and today is Sep 27, 2024. I bought it and used it once. After that, it sat in my car glove compartment until today when I noticed the battery was dead. So I took it inside and charged it but it would not charge. Is been charging for 6 hours and it is still charging. What a sham! Buy at your own peril!
A. Garner II –
Excellent!!!
Hands down the best battery jumper of this type I’ve used. As a test, I jump started a 2007 Ford Explorer with a fully dead battery that had sat unused or attended for two years. This jumper was effective in starting the vehicle with no problem. It’s a good investment.
Sharon L Nelson –
Quality, and dependable
I had to order this for a second time cuz someone stole the other one no fought of you I took it to the shop that is where it happened
Mel o Dee –
Perfect
my car battery died on me. I had this in my trunk. I used YouTube to get the directions. It worked perfectly had a storm out where I live. The lights are out and using it to charge my cell phone. It’s working perfectly.
BRAD3000 –
NOCO Boost Plus GB40 1000A
Works well – we bought one for each car.
BigBurchy –
Absolutely fantastic.
It’s so worth the Hundred dollars for this item to have peace of mind. It holds a charge for at least 6 months and is super easy to use. Don’t get stranded out on the cold waiting on AAA. This is a lifesaver. I highly recommend this.
Keegan Malone –
Piece of mind
We had one of our cars dead in the driveway and I was between longer jumpers or this. Out of the box I was able to jump the car. It is so easy to use as well, I kept looking for instructions thinking it had to be different. Only difference is that it’s easier to use than jumper cables due to the no spark risk. As our other cars get older I will definitely buy one for each.
Mayeline Vazquez –
Emergency used
Very helpful
Quinton –
Great
I should have brought this long time ago its works wonderful use it twice already
LUIS MEJIAS –
Excelente calidad.
Tamaño compacto. Atractivo diseño. Funcional. Útil.
Keith Alexander –
Works well
Works as it is supposed to work. Made very well. Have used many times on my car battery issue.
Gregg S. Manalo –
need 20 starsss
happy
Cindy Gonzalez –
So easy to use & works quickly!
I bought 2 of these; his and hers so to speak. My husband just used his and within 5minutes his vehicle was up and running again. So fast and easy to use. Paid for itself already as towing is $100. How can you not purchase this when itss as literally the cost of ONE tow?
Emily Elliott –
Everyone must have!
I have a roadside emergency bag in the trunk of my car containing a tire pressure gauge, depth gauge, jumper cables/battery box, ponchos, life straws, pedialyte, first aid kit, high-viz vest, fire extinguisher. better safe than sorry!
How I did it. –
Holding a charge..
100% charge holding after one use and months sitting there. Recommended for a car trunk – there when you need it.
Manuel de la torre –
Seguridad
Muy bien
Brian –
Didn’t Work
Sitting waiting for my son to come ou8t of the parking garage and I get a call that his car won’t start. I kept calm because I had brought the NOCO jump starter with me. I told him no problem. I strolled on up to his car like a pimp because I figured I just saved the day. Nope – Piece of Junk. The Jump Starter was in green Status (All the way charged). Long story Short – took me several trips to Advance auto and 3 1/2 hours later a had the old battery out and a new one in it. Charged to old battery when I got home and it worked fine. Could not jump it the way it was in the parking garage. If I could return it I would. Vey dissapointed with this product. Just my POV
HH –
Worked great
Used this on some of our diesel tractors jumped them no rpoblem
marvin –
Fast shipping
Nice product, light weight
Louie –
Very powerful and good quality
Highly portable
Rachel McCoy –
Impressive
Before I bought this I read a lot of the reviews on here and decided to buy. We have a total of 5 vehicles. 3 of them have been sitting for over 2 years. This little box jumped all 3 cars off and started them within a minute of connecting it to the batteries.
SoCalGal –
Works great, very compact
Used on truck and car, easily starts both. Great addition for road trips as back up
air mj –
Works good. Reliable
Comes with a durable charging cable. I’ve had one of these for about a year now and just ordered another. It works quick and comes with a nice carrying pouch. Would recommend
Roxy –
Life Saver: portable Car jump start
OMG, everyone needs this. I’m a girl who knows nothing about cars or how to jump start. My car won’t start at home over the weekend when my dealership isn’t open. so decided to look into a portable jump start. Over night delivery. I charged the pack on delivery. Hooked it up and my car Hyundai started without hesitation. OMG , everyone needs this in their car for emergency starts. Best purchase and investment!!! Their YouTube videos on setup and use was super helpful in connecting and using this portal jump start!!!!
buyer –
Saved Me and Friends More Than Once
This device is so handy and so easy to use. Brings a car back to life in 10 seconds. No bulky cables. No need to park 2 cars facing each other. And if you’re the one who needs a jump, you don’t have to wait for help to come. Game changer.
Jonathan –
Will not hold a charge!
Faulty out of the box – will not hold a charge.
Nicole Eilert –
Comfort on a dark road.
I wouldn’t leave home without it. It’s a great comfort knowing I have it in case there is an emergency. Not just for me but for others too. It felt wonderful being able to help a woman on the side of the road because her alternator went out.
Terrius Allen –
Did not come with all accessories
Did not come with charger cord and does not use type c .
H. Ossareh –
Works great
This has saved me three times already. Works great!
Daniel Spears –
Convenience
This is probably the best investment I’ve made in a long time. Great value for the money very fast to power up a car very durable
Gary –
Check the engine size
It works on my 6.1L Challenger and 5.4 F15 This wouldn’t start a very big engine. Very important to check this before buying. 6L gas or 4L diesel is the max I believe. This is a must for people who hike and camp. If you come back to your car, and the battery is dead, hope you have enough food and water to be found. Also great for winter conditions.
Wendy –
Battery stopped charging
I bought the NOCOBOOST PLUS Jump Starter back in 2021 as a gift for my mom. In the first year it worked great and I bought another for my aunt. We initially had no issues. However, as time went by, it started to take longer and longer to get the battery to charge. We have now reached the point to where we have left it charging for multiple nights, and it will no longer charge. We recently attempted to use the jump cables again, but they no longer started the car because the battery was not charging. Over the past 3 years we have only used it a handful of times, we have taken good care of it, and always leave it in its case. Unfortunately, the battery charge has caused a lot of problems, and we have not been able to get it back up to full battery.
Amazon Customer –
Always ready.
I had an issue with my battery draining over night(parasitic drain). This little device saved me multiple times.
James J. Clouston –
Happy to have this in my car
Because we do not drive our second car often, battery life has been inconsistent. Thus, I am always fearful of being stuck away from home with a car that won’t start. I decided to spend the money and purchase this jump starter after reading good reviews and seeing videos of this product in use. I have not needed it yet for jump-starting, but feel secure having it conveniently stored in its small bag in the trunk. It appears easy to use and seems much easier than worrying about using jumper cables. The other features of being a flashlight and portable power boost may also come in handy.
Steve –
Compact,
Handy a must have for every car
Brian J. Backer –
Amazing
This thing is worth its weight in gold. Saved me several times.
Mark A. Cook –
One shot, then it’s dead.
Jump started a 2000 Harley Dyna one time, then the product was dead and wouldn’t jump a cricket’s heart. If you only need this to work once before an eight (8) hour charge, by all means, purchase. Otherwise, disregard with extreme prejudice.
Kevin jacobo –
Works great
Jumped started a mini van multiple times that’s the battery is completely dead. And also a motorcycle bike
Moossa Areekat –
Safety
This one is with advanced safety features..
Andy Cabreja –
Great Product
Great Product
Amazon Customer –
Easy to use and great cranking ability.
NOCO boost. Best quality on the market. Holds a charge when not being used and you can depend on its power. Great buy.
R Bade –
We are having issues with our car battery
It was delivered yesterday, I charged it up completely so it has great reviews and will use it when needed!! Richard
Amazon Customer –
Jump great
Already been a life saver. Had to jump a battery. It did it with no hesitation
SAGolfLuvr –
Worth every penny
I was going through a tough stretch with my battery and having people go out of their way to jump start me. So I bought this to be more self sufficient and to stop bothering people. After a few false reads on my battery as I kept trying to get it replaced at a good price, Turns out the alternator was the problem. This product kept me going during all those super annoying times. (It did 4 jump starts on my truck before I needed to charge this product to full again).
Adonis Canlas –
Great Product
Great Product
J. Murray –
Well made
Well made for longevity and easy of use. Instructions for override are vague but if you know enough to override safely you can figure it out. The light and durable plug covers make this a great product.
Aeleuron Taxoidies –
No USB C
It gets the job done and well, but it uses the old USB 2.0 port.
Alexis –
Don’t think about it, buy it!
Bought this jump starter about 2 years ago. I work in the auto industry and just wanted to have a battery jump starter at home in case of emergency. Let me just say, it has saved us from a bind more than once. After two years, it’s still doing it’s job. I check to make sure it’s charged about every 3-4 months and that’s it. Definitely recommend.
villamar –
Good
Good
AdB –
Very good product
Good staff