NOCO Boost Plus GB40 Jump Starter Review: Meet Our Best High-End Pick For 2021

The Good

Its functionality is impressive and it can be used in a number of ways aside from jump starting vehicles with dead batteries. Its performance is hard to match as it is powerful enough to be used for most vehicles.

The Bad

A few buyers reported having received defective items that can’t even be charged. While under warranty, asking for a replacement is a complicated process. Price is also a concern since it’s more expensive than most options.
noco boost plus gb40

The Bottomline

Its usefulness, versatility and safety outweigh potential problems, which can only be considered as minor issues. If you have the budget, it could be a good option for you.

Unless you work in an auto shop, dealing with dead car batteries is probably not a daily occurrence. Seen in this light, buying a tool with the sole function to jump-start a car is not a very practical decision.

A better move is to buy a multifunctional tool that not only jumpstarts vehicles with ease but one that could also be used for other tasks. And we found an option that fits this bill – the NOCO Boost Plus GB40 Jump Starter.

Does More Than Mere Jump Starting

There are some tools that only do what they are supposed to do. For instance, a charger will only charge your gadgets and does nothing else. But this NOCO product is not that kind of device. Aside from jump starting your vehicle and doing it flawlessly each and every time, this is also a device capable of doing multiple functions, enhancing its usefulness and value.
For instance, you might think of this as a highly portable power source and use it as such. Used in this capacity, you’ll be amazed that this is one of the most powerful and dependable power banks that you can have. It can be used for charging tablets, laptops, smartphones and other gadgets that can be connected to a USB power port. This makes this product not only a perfect travel companion, but even your home should also have one as it can be very useful during power outages.
If you love to travel, this is yet another must-have tool. With this around, you can stay connected with the rest of the digital world as you can still charge your communication gadget of choice even while on the go.
What makes this option very suitable for travelers is its compact size and weight. It just measures 8.3 x 4.1 x 4.6 inches and weighs 2.4 pounds – compact and lightweight enough that you can fit it easily in your luggage.
Even its integrated LED flashlight is multifunctional and ready to serve you in a number of ways. It features seven lighting modes such as emergency SOS, strobe, low, medium, high and flashing. Not only can you use it while jump-starting your car at night, but you can even use it to signal any rescuer to your location. With its 6-hour continues runtime, you can also use it to serve as your light source in the evening.

Very Safe Yet Powerful Jump Starter

For a product its size, it packs quite a punch and can deliver 1000A. This makes it powerful enough to start up to 6.0 liters gas and 3.0 liters diesel engines. Also, This makes it a very versatile device as it can be used on most types of vehicles. According to the manufacturer, you can use it to start the engines of cars, trucks, boats, SUVs, and ATVs – pretty much everything that requires a battery to start.

Even if you have multiple cars, it won’t be an issue for this compact tool to start all of them. It packs enough power that you can start up to 20 vehicles in one go before you’ll need to recharge this jump starter.

Lastly, safety is of utmost importance when dealing with car engines since, in the presence of highly flammable fumes, even a single spark could have potentially dire consequences. Thankfully, it won’t be an issue with this tool since it has a spark-proof feature as well as reverse polarity protection, making it one of the safest tools of its kind in the market.

But I Just Wish…

However, even a product as impressive as the NOCO Boost Plus GB40 Jump Starter has some areas that can be improved upon. One such issue is that a few people who bought the product received defective ones that couldn’t even hold a charge. Asking for a replacement also became an additional issue for some buyers since the process is a bit complicated.
Another potential concern that might dissuade some buyers from purchasing this product is its price. At $130, there are those who feel that it's too expensive especially when one takes into consideration that other brands are offering similar options at half its price.

Frequently Asked Questions:

Are Noco jump starters any good?

Noco jump starters are good enough to jump-start your vehicle without needing another vehicle. These gadgets are portable and can fit into your toolbox easily to give easy access for jump-starting your vehicle in emergency situations. Noco is just exactly what you need to give another life to your battery!

How long will the Noco GB40 hold a charge?

The Noco GB40 can hold charge according to its battery capacity for up to 1 year. For attaining the best ideal performance, charge your device every 4 months after the preliminary charge cycle. A brand new device will hold a charge for two or three months before going dull.

Can you overcharge a Noco GB40?

Yes, Noco GB40 can be overcharged as it has built-in overcharge protection. Due to this factor, it can be connected to the charger all the time and still will not go bad. Although it is never endorsed to anything on charge forever if left overnight or for a day or two, it will be fine.

How many amps do I need to jump-start my car?

The standard amps required to jump-start most car engines are 400 to 600 amps. But in the case of cars with larger engines, up to 1000 to 2000 amps can be required. However, jump starters with different Amp settings are available and you can choose them according to your necessity.

How long do Lithium jump starters last?

The best thing for a car owner to own is a good lithium jump starter. It is powerful yet portable, compact, and lighter in weight as compared to lead-acid jump starters. For most lithium jump starters, the average life span of a jump starter’s battery is 5 to 6 years. They can last longer if they are in good hands!

What is the NOCO Boost Plus GB40 Jump Starter?

This is a fully functioning jump-starter that, in addition to jump starting your vehicle in emergencies, can also be used as a power bank for charging other devices and as an emergency flashlight with SOS, strobe, low, medium, high and flashing modes. It also has reverse polarity protection to keep it safe from accidental sparks during jump-starting.

What are the Pros and Cons of the NOCO Boost Plus GB40?


Very powerful – Can start up 6.0 liters gas engine and 3.0 liters diesel engines. Also, it can be used to start most types of vehicles such as cars, trucks, boats, SUVs and ATVs.

Very safe yet powerful – Sparks are eliminated and it has a built-in overcharge protection that prevents it from being overcharged.


Price – It’s costlier than other similar products in the market. Some buyers who received defective ones have to go through hoops to get their money refunded.

Size – It’s quite large and bulky for a product its size, making it very inconvenient for travel.

Why should you buy the NOCO Boost Plus GB40?

It’s powerful and offers a lot of features that make it convenient to own. It could be used in an emergency to start your car or the engine of another vehicle. If you ever get stuck out of gas or stranded in an unknown area, this will be your life saver!

Where to buy the NOCO Boost Plus GB40?

The NOCO Boost Plus GB40 can be bought from the official site of NOCO. You can also check out other reliable sites for reviews and feedback on this product. It can also be bought online through Amazon.

How does the NOCO Boost Plus GB40 work?

Tools being used in this process: one vehicle's battery and the other one's engine starter.
First, we need to make sure that both batteries are of a similar voltage and amperage ratings: approximately 12 volts for domestic vehicles, and 13.8 V DC (three-phase) for commercial vehicles; most trucks will require 14 V at least).

The driver must then park his vehicle in a safe area, get out of the vehicle, and place the booster between the two batteries. The electrical terminals of this device should be facing the same way as that of the batteries.

Next, using a jumper cable or lead wire fitted with clamps/clasp/clips (whatever you want to call them), connect one end to an external point on your car battery. Then, connect the other end of that cable to one terminal of your NOCO GB40. And, finally, connect the other cable from your GB40 to the positive terminal of your car battery.

In a similar manner, attach another jumper cable or lead wire to an external point on your car battery. This time, attach the other end to one terminal of your NOCO GB40. Then, connect the other free end of that jumper cable to a negative terminal on your car battery. And finally, attach the other lead cable to one terminal of your engine starter.

Start the engine and let it run for a second or two, then remove the jumper cables. And you're done! It's time to jump start your vehicle.

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