Review: NOCO Genius Boost Plus GB40 1000 Amp 12V UltraSafe Lithium Jump Starter

Last updated: December 2023

There are several car battery starters from different manufacturers and it may be difficult to make a choice when you need one. However, one product currently stands out and that is the NOCO GB40 UltraSafe lithium jump starter which is a portable but powerful device that can deliver up to 7,000 joules to dead batteries. It works efficiently for diesel (up to 3.0 L) and gas-powered engines (up to 6.0 L), which includes boats, cars, and even lawnmower engines. Currently featured on our list of best jump starters it is a great choice for the majority of drivers and car owners.

There are a number of things that make the NOCO GB40 jump starter a great choice for anyone looking for the perfect car battery starter.

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What’s in the box?

The unboxing experience reveals a well-packaged product that includes the GB40 unit, jump leads, a USB adapter for charging the unit, and a carrying pouch for storage and transport. The jump leads are of high quality, with sturdy clamps and a substantial feel. The GB40 itself has a solid weight and a robust build.

Controls and buttons

The GB40 comes with a power button, a light, and an override button. The power button also serves as an indicator of the unit’s charge level, with LEDs lighting up to show the percentage of charge. The light feature includes a flashlight with different levels of brightness and an SOS mode for emergencies. The override button is used for jump-starting batteries that are below 2 volts

NOCO GB40 Dimensions

Power for power, this lithium jump starter outperforms traditional chunky lead-acid battery booster packs at a fraction of the size and weight.

With the following dimensions: 6.6in (16.7cm) X 3.2in (8.03cm) X 1.7in(4.34cm) and 2.69lbs of weight it conveniently fits in a glove compartment, center console, trunk, or toolbox.

Features and performance

This may be a classic case of the saying “don’t judge a book by its cover”; this device appears small but it delivers up to 1000 Amps (7,000 J3S) which is approximately 20 jump starts when fully charged. It is also very easy and safe to use because it is equipped with a spark-proof technology that ensures that you can connect your battery to it in the right way and without any worries. Even if, for whatever reason, you happen to connect it incorrectly, the smart electronics inside will be able to detect it and warn you because there are detailed status indicators installed on the device.

GB40 can be recharged using a USB cable or 12V car charger and every single charge is expected to have enough power for 20 starts. The built in 2.1A USB out port can power all of your USB devices such as your smartphones, watches, portable Bluetooth speakers, headphones, and tablets.

In addition, NOCOGB40 also has a 100-lumen dual super bright LED flashlight that is very useful during emergencies especially because of the strobe lights. The double led flashlight has a switch which doubles as the switch for its 7 modes settings including SOS and Emergency Strobe. With multiple luminosity settings, it is immediately adaptable to a variety of situations. Using its powerful wash light will help you see your engine, help you change a tire at night, or even warn oncoming traffic when you are in need of roadside assistance.

Talk about great things coming in little packages; the NOCO GB40 UltraSafe lithium jump starter is designed to be used for 12volt lead batteries and for 3liters diesel and 6 litres gas engines.

Charging

Charging the GB40 is straightforward, with a USB adapter that can be plugged into a vehicle’s 12-volt accessory plug. The unit also features a USB output, allowing you to charge other devices like smartphones, laptops, or tablets. This makes the GB40 a versatile power source, useful not only for jump-starting vehicles but also for keeping your devices powered during trips.

PROS and cons of the NOCO GB40 UltraSafe lithium booster pack

Some of the advantages of the NOCO GB40 for us are:

  1. It packs a punch. With a single charge, the GB40 can jumpstart up to 20 cars providing they are using 12volt lead-acid batteries. It also works well with diesel engines despite its small size.
  2. Easy to use and safe. The device has an in-built reverse polarity and spark-proof technology which ensures that it can be used without any worries. Its cables are also flexible and well-built thus preventing overheating or melting. It also has a display and an installed system to detect connection errors and any problems with the device before use.
  3. Compact and handy. It is very small and lightweight which means you can put it in your car and never have to worry about being stranded in an emergency.
  4. The NOCO GB40 UltraSafe lithium jump starter can also be used to charge mobile devices. The flashlight feature can also be used at night and it also has the strobe lights for emergencies.

Some of the limitations of this product include:

  1. Limited number and capacity of ports. Unlike other jump starters that have different voltage ports, all the ports on this device are 5-volt ports. This may limit its adaptability when you have USB cords with other voltage parameters.
  2. Doesn’t come with a protective case (which is available separately – see NOCO EVA CASE here).

Conclusion

We have tested the GB40 on two vehicles: a 5.7-liter V8 Dodge Ram and a 3-liter V6 GMC Terrain. In both cases, the GB40 performed admirably, starting the engines without hesitation. The override button was used in these tests, as the vehicles’ batteries were disconnected, and the GB40 was not detecting any voltage at all.

This device is, without doubt, an important tool that every car owner should have in the trunk or the glove box. It comes at a highly competitive price and has amazing features to boot. It has many uses and adaptations which means you will definitely get great value for your money spent. Additionally, the manufacturers paid close attention to the functionality and appearance of the device, and they succeeded in creating a device that is not just aesthetically appealing but one that also performs incredibly well.

If you are in need of a jump starter that can serve you efficiently and is durable, then the NOCO GB40 UltraSafe lithium jump starter is perfect for you. It can be used for a variety of equipment and engines which include car engines, truck engines, snowmobiles, UTV’s, ATV’s, campers and several others. It is reliable and you can rest assured that you would be making a wise decision by purchasing the NOCO GB40 UltraSafe lithium jump starter.

Here are a few videos we have found useful that touch on this jumpstarter:

Where to buy

  • Product
  • Features
  • Photos

NOCO Boost Plus GB40 1000 Amp 12-Volt UltraSafe Lithium Jump Starter Box,...

& Free shipping
Last update was on: May 21, 2024 3:25 am
$99.95 $124.95

Accessories

  • Product
  • Features
  • Photos

NOCO GBC013 Boost Sport and Plus EVA Protection Case for GB20 and...

& Free shipping
Last update was on: May 21, 2024 3:25 am
$19.95 $25.95

FAQs

What is the NOCO GB40?

The NOCO GB40 is a compact, portable, 1000-amp lithium-ion jump starter designed to start engines up to 6 liters for gasoline and 3 liters for diesel.

How much does the NOCO GB40 weigh?

The NOCO GB40 weighs 2.3 pounds, making it a lightweight and portable jump starter.

How do I charge the NOCO GB40?

The NOCO GB40 can be charged using the included USB adapter, which can be plugged into a vehicle’s 12-volt accessory plug.

Can the NOCO GB40 charge other devices?

Yes, the GB40 features a USB output, allowing you to charge other devices like smartphones, laptops, or tablets.

What is the override button on the NOCO GB40 for?

The override button is used for jump-starting batteries that are below 2 volts.

What safety features does the NOCO GB40 have?

The GB40 has a reverse connection error prevention feature. If you accidentally connect the jump leads incorrectly, the GB40 will not allow the vehicle to boost, preventing potential damage.

How do I know the charge level of the NOCO GB40?

The power button on the GB40 also serves as an indicator of the unit’s charge level, with LEDs lighting up to show the percentage of charge.

What is the flashlight feature on the NOCO GB40?

The GB40 includes a flashlight with different levels of brightness and an SOS mode for emergencies.

What is included in the NOCO GB40 package?

The package includes the GB40 unit, jump leads, a USB adapter for charging the unit, and a carrying case for easy storage and transport.

What kind of warranty does the NOCO GB40 come with?

The NOCO GB40 comes with a 1-year hassle-free limited warranty.

How big is the NOCO GB40?

The NOCO GB40 is compact enough to fit in a glove compartment, center console, or even your pocket.

How long does it take to fully charge the NOCO GB40?

The GB40 takes approximately two hours to fully charge.

Can the NOCO GB40 start a dead battery?

Yes, the GB40 can start a dead battery using the override button, which allows it to boost batteries that are below 2 volts.

How much does the NOCO GB40 cost?

The NOCO GB40 prices vary, generally about $125 – if you can get it cheaper it it is a good deal.

Can the NOCO GB40 be used on diesel engines?

Yes, the GB40 can be used to start diesel engines up to 3 liters.

How many times can the NOCO GB40 jump-start a vehicle on a single charge?

The exact number can vary depending on the condition of the battery and the engine size, but the GB40 can typically provide multiple jump-starts on a single charge.

Is the NOCO GB40 safe to use?

Yes, the GB40 has built-in safety features, including reverse polarity protection and spark-proof technology.

Can the NOCO GB40 be used in any weather conditions?

The GB40 is water-resistant and designed to function in a variety of weather conditions. However, it’s always best to check the user manual for specific operating conditions.

Does the NOCO GB40 have a light indicator for charging status?

Yes, while charging, the GB40 has a red LED that flashes its progress, as well as a bright white LED showing that it is charging.

What type of batteries can the NOCO GB40 jump-start?

The GB40 is designed to jump-start 12-volt lead-acid batteries, including flooded, gel, AGM, and maintenance-free, for cars, boats, trucks, and more.

How long can the NOCO GB40 hold its charge when not in use?

The NOCO GB40 can hold its charge for up to one year when not in use. However, we recommend to recharge it every 6 months and checking it regularly, especially during the summer and winter – the extreme temperatures put most strain on the batter.

Can the NOCO GB40 be used to charge a laptop?

Yes, the GB40 has a USB output that can be used to charge devices such as laptops, smartphones, and tablets.

Does the NOCO GB40 come with a carrying case?

Yes and no – you get a microfiber pouch that comes in the box. A sturdy plastic case is available separately (see above).

Can the NOCO GB40 be used on motorcycles?

Yes, the GB40 can be used to jump-start motorcycles as well as cars, boats, and trucks.

What is the maximum engine size the NOCO GB40 can jump-start?

The GB40 can jump-start gasoline engines up to 6 liters and diesel engines up to 3 liters.

Does the NOCO GB40 have overcharge protection?

Yes, the GB40 has built-in overcharge protection to prevent damage to the unit and the battery it’s charging.

Can the NOCO GB40 be used internationally?

Yes, the GB40 can be used internationally. However, you may need a plug adapter for the charger depending on the country.

What is the lifespan of the NOCO GB40?

The lifespan of the GB40 can vary based on how often it’s used and how well it’s maintained. However, with proper care, it can last for several years.

Can the NOCO GB40 be used to power other devices in an emergency?

Yes, the GB40 can be used to power devices such as smartphones, tablets, and laptops in an emergency using its USB output.

Does the NOCO GB40 require any maintenance?

The GB40 requires minimal maintenance. It’s recommended to keep it clean and recharge it every 6 months when not in use.

Can the NOCO GB40 be used in cold weather?

Yes, the GB40 is designed to function in a variety of weather conditions, including cold weather.

Does the NOCO GB40 have a warranty?

Yes, the GB40 comes with a 1-year hassle-free limited warranty.

How do I know if the NOCO GB40 is fully charged?

The GB40 has LED indicators that show the charge level. When all the LEDs are lit, the GB40 is fully charged.

Can the NOCO GB40 damage my vehicle’s battery?

No, the GB40 has built-in safety features, including reverse polarity protection and spark-proof technology, to prevent damage to your vehicle’s battery.

Does the NOCO GB40 come with instructions?

Yes, the GB40 comes with a user manual that provides instructions on how to use the device.

Can the NOCO GB40 be used to jump-start a boat?

Yes, the GB40 can be used to jump-start boats as well as cars, trucks, and motorcycles.

Does the NOCO GB40 have an automatic shut-off feature?

Yes, the GB40 has an automatic shut-off feature to conserve battery life.

Can the NOCO GB40 be used while it’s charging?

No, we do not recommend to use the GB40 while it’s charging. It’s best to wait until it’s fully charged before use.

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