GB50 Support
Videos
Overview of the NOCO Boost GB50
All batteries die, where will you be? Introducing the all new GB50 Boost XL 1500A UltraSafe Lithium Jump Starter.
How to jump start using your NOCO Boost GB50
Learn how to jump start using your NOCO Boost GB50 UltraSafe Lithium Jump Starter in three simple steps.
How to recharge your NOCO Boost GB50
The GB50 is a portable lithium-ion battery jump starter booster pack that delivers 1,500-amps for jump starting a car, boat, trucks and more.
How to use manual override on your NOCO Boost GB50
Learn how to use manual override on your NOCO Boost GB50 UltraSafe Lithium Jump Starter to begin jump starting a dead battery below 2-volts.
How to charge a phone with NOCO Boost
Learn how to charge a phone or other USB devices using NOCO Boost.
GB50
HOW TO JUMP START.
ATTACH CLAMPS.
POWER ON.
START VEHICLE.
POWER OFF.
Or power off/on to reset.
FAQ
Boost
Choosing Boost
Which Boost should I get for my vehicle?

Boost models are based on the vehicle engine size. Look up the engine size of the vehicle to find the Boost model that best fits your needs.

Boost Gasoline Engine Diesel Engine
GB20 Up to 4.0L   Learn more.
GB40 Up to 6.0L Up to 3.0L Learn more.
GB50 Up to 7.0L Up to 4.5L Learn more.
GB70 Up to 8.0L Up to 6.0L Learn more.
GB150 Up to 9.0L Up to 7.0L Learn more.

 

Boost X Gasoline Engine Diesel Engine
GBX45 Up to 6.5L Up to 4.0L Learn more.
GBX55 Up to 7.5L Up to 5.0L Learn more.
GBX75 Up to 8.5L Up to 6.0L Learn more.
GBX155 Up to 10.0L Up to 8.0L Learn more.

 

Boost Max Gasoline Engine Diesel Engine
GB250 12V Up to 16.0L Up to 16.0L Learn more.
GB251 24V Up to 32.0L Up to 32.0L Learn more.
GB500 12V & 24V Up to 45.0L Up to 45.0L Learn more.
How large of an engine can Boost jump start?
GB20 For gasoline engines up to 4L. How to Jump Start using GB20
GB40 For gasoline engines up to 6L and diesel engines up to 3L. How to Jump Start using GB40
GB50 For gasoline engines up to 7L and diesel engines up to 4.5L. How to Jump Start using GB50
GB70 For gasoline engines up to 8L and diesel engines up to 6L. How to Jump Start using GB70
GB150 For gasoline engines up to 9L and diesel engines up to 7L. How to Jump Start using GB150
How long does Boost take to recharge?

2.1A is the standard smart phone charger.

 

GB20 USB charging
3 hours at 2A
6 hours at 1A
12 hours at 0.5A
How to Recharge GB20.
GB40 USB charging
3 hours at 2A
6 hours at 1A
12 hours at 0.5A
How to Recharge GB40.
GB50 USB charging
3 hours at 2A
6 hours at 1A
12 hours at 0.5A
How to Recharge GB50.
GB70 USB charging
4.5 hours at 2A
9 hours at 1A
18 hours at 0.5A

12V Fast Charge (36W)
2-3hrs at 3A
How to Recharge GB70.
GB150 USB charging
11 hours at 2A
22 hours at 1A
45 hours at 0.5A

12V Fast Charge (56W)
2-3hrs at 5A
How to Recharge GB150.
How many jump starts can Boost perform on a single charge?

Starting with a fully charged battery Boost is rated for the following:

 

GB20 Up to 20 jump starts.
GB40 Up to 20 jump starts.
GB50 Up to 30 jump starts.
GB70 Up to 40 jump starts.
GB150 Up to 80 jump starts.
What is the internal battery capacity of Boost?
GB20 24 Watt-Hour Lithium-Ion
GB40 24 Watt-Hour Lithium-Ion
GB50 35 Watt-Hour Lithium-Ion
GB70 56 Watt-Hour Lithium-Ion
GB150 88 Watt-Hour Lithium-Ion
Can Boost recharge my smartphone and other USB devices?

Boost Jump Starters can charge a multitude of USB devices, including phones. Locate the USB OUT port at the end of Boost, plug the USB device charging cable into the port, and power on Boost. The USB device will now receive power.

 

Boost can charge a smartphone:

 

GB20  Approximately 2 times.
GB40  Approximately 2 times.
GB50  Approximately 2-3 times.
GB70  Approximately 3-4 times.
GB150  Approximately 6-7 times.

 

Actual usage may vary. Charging before the smart phone's battery is fully depleted typically results in even more top-ups per charge cycle—perfect for life on the go.

 

Learn more about charging with Boost. Charging USB Devices Using NOCO Boost

 

Warranties & Registrations
Where can I obtain the user manual for Boost?
How long is the warranty on Boost?

NOCO Boost has a one-year limited warranty. Visit our Support Page to learn more about Warranty or find the User Guide to your specific Boost model.

Features
What is the starting current on Boost?
GB20 500 Amps (Peak)
GB40 1,000 Amps (Peak)
GB50 1,500 Amps (Peak)
GB70 2,000 Amps (Peak)
GB150 3,000 Amps (Peak)
What is the lumen rating of the LED flashlight?
GB20 100 lumen LED flashlight.
GB40 100 lumen LED flashlight.
GB50 200 lumen LED flashlight.
GB70 400 lumen LED flashlight.
GB150 500 lumen LED flashlight.
Is Boost waterproof?

NOCO Boost models carry a rating of IP65 with the port covers closed, which means they can be exposed to water without any issues, however, they cannot be submerged in water.

How heavy is Boost?
GB20 2.45lbs (1.11kg)
GB40 2.45lbs (1.11kg)
GB50 2.45lbs (1.11kg)
GB70 4.18lbs (1.9kg)
GB150 6.39lbs (2.90kg)
How long is the USB charging cable?

The provided Micro USB cable is 48" (1 m) in length. Boost charges with a standard Micro USB port, so if a longer or short cable is preferred, then the provided cable can be replaced with any compatible Micro USB cable.

Can Boost charge my car's battery?

No. While Boost can jump start your car battery it is not a battery charger. If you need to charge your car battery we recommend using NOCO Genius for charging and maintaining 6V or 12V batteries lead acid, AGM or Lithium batteries.

Click here to learn more about NOCO Genius Smart Battery Chargers.

How long does Boost hold a charge?

All Boost models can hold 70% of its rated capacity for up to one year. For optimal performance, we recommend charging the device at least every 4-6 months, after initial charge.

What types of batteries can Boost jump?

NOCO Boost can only jump start 12V lead acid batteries. This includes wet, gel, maintenance free, enhanced flooded battery, and absorbent glass mat batteries.

Check out NOCO Boost Max to learn more about jump starting 24V batteries.

What devices can Boost recharge?

Boost can recharge all generations of smartphones on the market, as well as HD action cameras, tablets, music players, wireless speakers and more. Any devices that uses a Universal Serial Bus (USB), will take a charge from Boost.

 

Click here to learn more about charging USB devices using NOCO Boost.

What is the USB port ratings on Boost?

Both the USB 'In' and 'Out' ports on Boost are rated at 2.1 Amps.

Can Boost jump start small vehicles?

Yes. Boost can jump start any vehicle with a 12V lead acid battery like a car, boat, motorcycle, ATV, lawn mower, RV, tractor, truck and more.

Can I use Boost device on my hybrid vehicle?

Boost jump starters are compatible with the starting-battery in hybrid vehicles as long as the starting-battery in question is a 12V Lead-Acid battery. These include Wet-Cell, Gel-Cell, AGM, AGM , Maintenance Free, and EFB batteries. Boost will also work with Calcium-Calcium and Calcium-Lead batteries. As long as the unit is used on a 12V ignition system for a gas or diesel engine and on one of the aforementioned battery types, it will work.

Is Boost compatible with 220V outlets?

Yes. Boost is USB rechargeable, so it’s not directly tied to the electrical service of your country (i.e. 120V or 220V). Use an AC to USB adapter or 12V to USB adapter to charge your device. A 12V USB Car Charger will work in any country or vehicle with a 12V port. The GB70, GB150, and Boost Max have an XGC input, allowing you to charge the units directly via 12V port for faster charging.

Can Boost jump start a car from the 12V plug?

No. The 12V ports in a car are current limited at 8 Amps. Boost delivers a maximum range of 400A to 20000A, depending on your model, which would cause severe damage to the port. However, there is no way to connect this product to the 12V port, so there is no risk of this happening.

Can Boost jump start a 6V vehicle?

No. Boost is only designed for 12V vehicles. Jump starting a 6V battery could become extremely dangerous.

Can Boost jump start a lithium battery?

No. Lithium batteries are sensitive to how current is applied to the battery. Jump starting a lithium battery could become extremely dangerous.

Can Boost jump start a motorcycle?

Yes, as long as the battery is a 12V Lead Acid battery.

Can Boost jump start a motorcycle using an SAE harness?

There isn't a direct Boost-to-SAE adapter since the SAE cable isn't rated for the output of the Boost. You can install the GBC007 eyelet cable alongside the SAE cable you have on your battery, then the GB20, GB40, or GB50 directly into the GBC007 when jump-starting. GBC007 has an included X-Connect adapter which can be plugged into the cable and plug a compatible NOCO Genius Battery Charger into the adapter for charging and maintenance.

Click here to find more NOCO Boost Accessories.

Can Boost power other 12v DC devices, like an air compressor?

The GB70 and GB150 are the only Boost models that have the ability to power 12V accessories. Included with the purchase of these Boost models is an XGC 12V female port adaptor that can be used to power 12V devices, such as air compressors.

What if my vehicle has a 2-battery configuration?

For vehicles with dual battery configurations, connect both the positive and negative clamps of Boost to the battery closest to the starter.

  • If your batteries are in parallel, you can use two Boost units to double the starting power if needed.
  • If your batteries are in series, you cannot use any 12V Boost. A 24V jump starter would be required.

Check out NOCO Boost Max to learn more about jump starting 24V batteries.

Can I take Boost on an airplane?

Yes. All Boost models are FAA compliant and can be taken on a plane, however they have to be in your carry-on. No-Lithium batteries are allowed to be checked in luggage. All Boost models are under 100Wh which is the limit set by the FAA. For more additional information, or for current updates, please see the link below to the FAA guidelines. We also recommend contacting the airlines you are flying to see if they have any additional restrictions.

Is Boost made in the USA?

NOCO Boost Jump Starters are designed in the United States and manufactured in various countries around the world.

Care Tips
What if Boost isn't detecting my car's battery?

If Boost is not detecting the battery it is possible the voltage is too low to detect. Boost is designed to jump start 12-volt lead-acid batteries down to 2-volts. If your battery is below 2-volts, the Boost LED will be "Off". This is an indication that Boost can not detect a battery. If you need to jump start a battery below 2-volts there is a Manual Override feature, which allows you to force "On" the jump start function.

 

Should I charge Boost before using it?

Yes. Boost will arrive partially charged. Fully charge the unit before first using it to ensure optimal performance.

What is the optimal storage temperature for Boost?

NOCO Boost should not be stored below -4ºF (-20ºC), and not exceed 122ºF (50ºC) for any reason. Storing Boost outside of these ranges can cause damage to multiple crucial components of the jump starter. This applies to all Boost models.

What are the operating temperatures for Boost?

NOCO Boost can operate within the temperature range -4ºF to 122ºF (-20ºC to 50ºC). Boost is equipped with thermal sensors that will prevent it from operating outside of this temperature range for your own safety.

What if the clamps touch?

Nothing, it is perfectly safe. Boost Air has built-in spark-proof sensors that prevent power from being delivered unless a battery is detected or the device is in Manual Override Mode.

 

When in Manual Override Mode: Do not allow the positive and negative battery clamps to touch or connect to each other, refer to the user guide for more information.

Can the clamps be connected to the battery backwards?

The error LED will illuminate, but it is perfectly safe and there won't be any sparks. With Reverse Polarity Protection, Boost will not deliver power unless Boost is connected to the battery correctly.

Can I recharge Boost in extreme heat?

No. Boost should be recharged in temperatures between 32ºF to 104ºF (0ºC to 40ºC). Remove from heat source and allow the battery to cool down before recharging.

Can I leave Boost in direct sunlight in a car?

No. Remove from direct sunlight. The ambient temperature in car can increase up to 50ºC (122ºF) within 10 minutes.

Is it possible to accidentally overcharge Boost?

BOOST jump starters have built-in overcharge protection and can be left on a charger at all times.

Can the battery inside Boost be replaced?

No. We do not replace the batteries or repair the units, but replace the whole unit if it tests faulty.

My Boost has reached its End of Life. Where can I safely dispose of it?

We always recommend checking in with your local laws, and regulations for proper disposal of your Lithium battery products, like Boost. If you live in the USA or Canada, you can follow this link to see where to drop off the Lithium product for recycling in your area:

https://www.call2recycle.org/

Accessory Compatibility
Does Boost come with a carrying case?

Boost comes with a provided microfiber storage bag. NOCO makes EVA Protective Cases for each model of Boost, all are sold separetly. Use this chart to find the matching case for each Boost model:

GB20 GBC013
GB40 GBC013
GB50 GBC017
GB70 GBC014
GB150 GBC015

 

Click here to find more NOCO Boost Accessories.

The clamps are not long enough? Does NOCO sell an extension?

Unfortunately, there are no extension cables available for the clamps on Boost products as extending the cables would reduce the starting power they produce. If your positive and negative posts are too far away from each other, you can also connect to a negative ground on the vehicle chassis rather than the negative post.

I lost my charging cable. Where can I get a replacement?

NOCO does not individually sell the USB charging cable like the one provided with the unit. Boost can be charged using any standard Micro USB cable like the ones many smartphones and tablets use.

LEDs
GB50
Power LED
Illuminates White when unit is "on".
Cold LED
Illuminates solid Blue; approaching lower temperature limit. Flashing Blue; unit is too cold to jump start.
Hot LED
Illuminates solid Red; approaching upper temperature limit. Flashing Red; unit is too hot to jump start.
Error LED
Illuminates Red if reverse polarity is detected.
Charge LEDs
Indicates the charge level of the internal battery.
Boost LED
Illuminates White when Boost is active. LED flashes White when Manual Overide feature is active.
Buttons
GB50
Power Button
Push to turn unit "on" and "off".
Light Mode
Toggles the ultra-bright LED light through 7 light modes: 100% > 50% > 10% > SOS > Blink > Strobe > Off
Manual Override
To enable, push and hold for three (3) seconds. WARNING: Disables safety protection and manually forces Boost "On". Only for use when a battery is too low to be detected.
Boost
TROUBLESHOOTING.
ERROR
REASON / SOLUTIONS
Error LED: Solid Red
Reverse polarity/Reverse the battery connections.
Error LED: Blinking Red w/Cables Connected Properly
The internal battery is too hot/ Allow the unit to cool. Bring the unit into cooler environment.
Boost Light Does Not Come On w/Cables Connected Properly
Connected battery is below 2-volts/ Remove all loads, and try again, or use Manual Override Mode.
MANUAL OVERRIDE
GB50
PUSH AND HOLD FOR 3 SECONDS.
WARNING: Disables safety protection and manually forces Boost “On”. Only for use when a battery voltage is too low to be detected.
Connect, Charge, and Store.
GB50 Accessories
The GB50 is compatible with an array of NOCO accessories. Connect to your battery by mounting the GBC007 eyelets, or charge more quickly with the NUSB211NA charging adapter. Store and protect your GB50 with the GBC017.
View All Accessories

GBC003

GBC003

MSRP: $32.95 You save 24%

$24.95

Add to Cart

GBC007

GBC007

MSRP: $32.95 You save 24%

$24.95

Add to Cart

GBC017

GBC017

MSRP: $32.95 You save 24%

$24.95

Add to Cart