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.














Patty –
Amazing
Easily one of the best purchases ever. I bought this item December 2023. Never had to use it until today (November 2024). Accidentally left my lights on for 2 days and my car’s battery got depleted. This was extremely easy to use and started my car back up instantly. Thank you so much.
LJ –
Battery life vs cost
Used maybe 3-4 times since purchasing in 2019. Worked perfectly. Checked charge maybe every 3-4 months.. charge stable or re-charged as needed. Now 2024, doesn’t hold a charge. Not sure 3-4 times of use was worth $100. Felt safe having this. Thinking of trying another model.
Sapillo –
Le faltó una pieza al paquete
Aún no lo he usado pero llegó incompleto
Amazon Customer –
Short battery life.
It worked great. Until it didn’t. We even recommended it to our friends. Husband is a mechanic & was very satisfied until it stopped working around a year after it’s purchase.
Amber –
Stopped working after a month
USELESS product. Car battery died and it wouldn’t don’t jump start my car. Barely had this for a month! Waste of money don’t bother. NEED REFUND STAT
Placeholder –
emergecy item a must
a must have, it cost me $50 for a jump, this is a no brainer, get it and keep it charged. You will eventually need it especially if you live in the cold climates of the US. HIGHLY recommend, it works and you wont be stranded
Rick –
what’s in the box?
so i can’t say if this thing is any good. Because there in no way to use it out of the box. The picture and description on amazon show a car charger (which would be worthless for a device to charge dead batteries) and a 42 inch 2.1 usb cord. You get neither. You get a C to C short cord with not hub or port. I have about 20 cubes for USB but none for USB-C its hould be disclosed that you will need an additional part. Update the listing. The only thing worse was amazon support which told me to hold for 3 minutes 12 times until I hung up. So pissed about the customer no service that I cancelled Prime
Spock Fan –
The description and picture is incorrect
The description and picture are incorrect. The GB40 ships without the car cigarette lighter charging adapter and comes with a USB-C to USB-C cable rather than the one shown according to NOCO when I called them. The product has been upgraded but the listing has not. I contacted the manufacturer about why I received incorrect product and their response was that it had been upgraded and some third party sellers had not upgraded their information. This is listed on the NOCO amazon store so I assume NOCO has something to do with the listing and I brought that to their attention. They did not seem concerned at all that it was incorrect and I’m just out of luck with no car charging adapter. Unacceptable. Fix your listing NOCO, be professional. As of this review posting, it still hasn’t been corrected. I haven’t used it yet but I gave it one star for extreme indifference by the manufacturer. If I wasn’t in quick need of a jumper for a trip I’m taking I would have sent it back. Now I get to go buy a car adapter for this.
Arty Henne –
Do not buy comes without reccomended charger which they do not sell
This has great reviews. It is an incomplete product. It does not come with a charger. The instructions which has a font that it is not readable unless you take a picture and enlarge it, recommend the Noco 10W 12 V power adapter to charge it. It does not come with it and they do not sell it. I am sending it back. Companies have gotten real cheap at not adding an adapter that costs them 50 cents. If enough of us start sending products without adapters back. They will start putting them in because it is more expensive to receive a product back. Join me and send any product back that does not come with a charger. Thanks
Tim-o –
Instructions
Compact size, appears to be well-built and rugged. A thick book of instructions is included for more than a dozen languages, BUT NOT ENGLISH! Instructions (PDF) are available on-line at the Noco Website. It is not possible to charge the unit directly from a 110-volt wall outlet, just a very low power (i.e., slower) USB port. Doesn’t include a 110-volt AC outlet, which would be nice.
Doug S. –
Wonderful!
I couldn’t be more satisfied! I was on the market for something like this when my car battery was out of commission; and until I got a new one, I was able to successfully self jump my vehicle every time I needed to drive for 2 weeks! This product is durable, efficient and performs as advertised. Safe and easy to use; I highly recommend this for EVERYONE to keep in their vehicle for emergencies!
Tiffany –
DOESNT WORK !!!!!
I have tried to use it 3 different time to jump my car just kept thinking it needed chartered more mad it just will not jump it I hook up real cables jumps the first try no hesitation this item DOES NOT WORK !!!!!!
URB –
Disappointed
I’ve used this item 3 times & it only worked once so far.
TheRealHalligan –
Works really well
I love this product! It has jumped several cars for me as I am always at car shows and automotive events. It has saved my when I didn’t have a way to charge my phone, thanks to it’s USB outputs and when I didn’t have a flashlight! I have used it for 3 consecutive jumps without charging it (though I wouldn’t recommend as common practice) and charged multiple devices as well. Seriously worth the investment.
Flor Meyers –
Very low quality charge plug connections
The charge connections on these battery’s is really a weak point when considering the quality of this product. I bough each family member one so they wouldn’t get stranded with a dead battery. All 4 of them eventually ended up not being able to be charged due to the connection contacts getting all jazzed up. Very disappointed.
Christy –
Worth it
When it comes to something that I’m going to depend on to make sure my car starts and I can get to work, this was the best choice. Sure they make cheaper alternatives, but at what cost? Not something I was willing to roll the dice with. The quality is great, it’s easy to use, and most importantly it works when you need it to. Went out to a car this morning that wouldn’t start and with the help of this, had it running in less than two minutes. A lot of stress has been lifted knowing I won’t have to rely on anyone else if I had a dead battery. Well worth the money.
Bishop –
Battery Booster.
I like the fact that I am in possession of this device… it will greatly aid at preventing me from being stranded… and in need of assistance from others. I will travel with it always…keeping it fully charged and in my vehicle.
Brad –
Buy new
Bought a returned product and it won’t charge now all the hassle of returning product. Very disappointed in product.
Carlos S. –
Very useful
This is so compact really worth it
Amazon Customer –
Accessories not included
The unit itself is very good. Mine arrived without the charging cable or adapter.
Doug mccune –
Compact & Quick
Easy to use, clear indicator light of charge status, used several times, well worth the money
Amazon Customer –
Missing parts that the description says are included!
Seems like a very good jump starter! Be advised that the description on Amazon says a 40-inch USB-Micro and a car charger are included. This is untrue and they are not in the box with everything else! Kind of disappointing! The charger itself seems just fine,
Jeff H. –
Missing Parts
Two of the pictured parts were missing.
Viviana Ruiz –
One must to have.
Easy to use.
Yuri –
Why still with a Micro USB?
I never expected this product to still have a micro usb to charge it. Really disappointed in that….
Eddie –
Best Battery Jump Starter it never lets you down!
This battery jumper is one of the best! It has helped me, and others stranded on the road with it powerful juice to turn on any battery for any car.
Dan Paidousis –
Just the trick
Use two times on the first day and worked great.
Victoria –
Easy to use
My motorcycle has an unresolved battery issue so this is great to keep in the backpack to keep from being stranded. 1 charge has jumped the bike at least 5 times(still counting)
a customer –
Disappointed
I bought this just in case my battery went dead. Less than 6 months after getting it my battery was dead and this thing wouldn’t even turn the engine over. Total waste of money.
Tara Marceaux –
Safety
Love it as a woman I feel safe that I don’t have to walk up to a random stranger
DK ELLER –
Don’t travel without it!
I bought this a long time ago, put it in my emergency road kit and forgot about it… Until my truck died. After being tossed around and forgotten so long, I didn’t even know if the pack would take a charge, but it did! Took almost 4 hours on a usb to wall cable. But it only takes seconds to hook up to the truck battery to get her going again. Amazing and foolproof! I told my sisters and friends to order one immediately.
Dancingwater –
I feel secure knowing I won’t be stranded when the Subaru battery drains
Reliable source of sufficient power to crank the engine of a drained and otherwise competent battery. Beats being stranded, especially after the extended warranty on my care expired.
Mike Suchcicki –
Worked perfectly the first time
So far I’ve only used this device once, to jump start my 2008 Honda Civic, but it worked perfectly the first time. I gave the device a full charge, as recommended, and used it without any issues. (Something of which buyers should be aware, though: The manual that comes with the device is simply a safety warning pamphlet, written in about two dozen different languages. You’ll have to scan a QR code to get to the online user manual. A slight annoyance, but nothing worth taking a star away.)
tucsondweller –
Great gift but buy only on sale.
Great quality and works very well. I have two versions of this and have given as gifts. But as they are very expensive compared to other brands, it’s necessary to wait for big sales seasons to not overpay.
Leon R. Bee –
Great Product
Great Product
supersupply –
Does not work for my Honda pilot 2018
Finally I got an chance to use the starter I brought two months ago yesterday and today. I tried thousand of times but it can not jump start my car with a lot trouble. I realize that return date window was closed. right now. I do not know to deal with this starter which is useless for me.
Larry Weber –
Works
Nice compact starter for my motorcycle. Fits nicely in the small saddle bags on my bike. Worked right out of the box.
Nancy Alvarez –
All 4 boxes are missing car charging adapter!
Ordered 4 chargers and all 4 boxes missing car charging adapter piece! So annoying! Will look to purchase another brand.
Kathleen Gallagher –
It works!
Aall I needed from this was for it to wor and it did. Sometimes you buy these but they don’t have enough voltage for your engine. If you do buy a jumper just double check to see how much voltage you need for your make and model. I think this one works for most models. I did end up needing to run my car for a bit longer after the jump, but this sames me a lot of time for those moments I accidentally leave my interior light on.
Michael Tuck –
Works great.
Works great.
Carolyn Jungclas –
Works flawlessly out of the box
Simple, easy to use and reliable. This is the market leader for a reason.
rd3951 –
It is small and portable
Great charger- small enough to always keep in your car for emergencies- such a great idea! Gave it to my son for his birthday so he will always be safe!
Localbuzz –
This jumper is awesome and works great…
I cannot say enough good things about this jumper. I have used it twice so far and my car fired up immediately when I put this jumper on it. It holds it charge well. It is small and easy to use. Charging is simple. I would recommend this device to anyone that just wants to have something around for peace of mind or to help out others if they need a jump. It will easily fit in a glove box or in a small trunk space.
noname –
Missing part
Missing 12v charger, sending it back.
Kc marcum –
Somewhat small and compact
Got it the next day I needed it, lol worked good had a few light settings and three ? I think faster strobe settings on it other then the standard flashlight, USB ports ect i saw the step up from this one at my work, we have have it for our diesel equipment that likes to drain overnight decided to look up the brand and model im happy with mine so far seems well built has some weight to it too.
Michael Roos –
Great product!
I have bought many of these and given them to friends, family, and strangers! A great product to have at any time!
DesignerEyeLash –
Great little jump starter
Wish I had bought 1 of these a long time ago. I love the size as it is easy to store in my vehicle. Then when needed it has all the power I need to start my full size sedan to my 1 ton cargo van. The battery life on it is also amazing as I get atleast 5-6 jumps on it before needing to recharge. The lights on it have also come in handy as they are bright and have several different modes.
Joe L –
Excellent Product! Thank you!
Excellent Product! Thank you!
Alekz –
Life saver
This can help you out in an emergency. Especially when your car battery gives out on a random day.
Amazon Customer –
Didn’t receive everything
Mine did not come with the 12v power adapter to plug into a car to charge it.