GBX75 Support

Videos

How to jump start using your NOCO Boost X GBX75

Learn how to jump start using your NOCO Boost X GBX75 UltraSafe Lithium Jump Starter in three simple steps.

How to use manual override on your NOCO Boost X GBX75

Learn how to use manual override on your NOCO Boost X GBX75 UltraSafe Lithium Jump Starter to begin jump starting a dead battery below 2-volts.

How to recharge your NOCO Boost X GBX75

The GBX75 is a portable lithium-ion battery jump starter booster pack that delivers 2,500-amps for jump starting a car, boat, trucks and more.

How to charge a phone with NOCO Boost X

Learn how to charge a phone or other USB devices using NOCO Boost X.

GBX75

HOW TO JUMP START.

FAQ

Boost X

Choosing Boost X

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 X jump start?

GBX45	For gasoline engines up to 6.5L and diesel engines up to 4L.	How to Jump Start using GBX45
GBX55	For gasoline engines up to 7.5L and diesel engines up to 5L.	How to Jump Start using GBX55
GBX75	For gasoline engines up to 8.5L and diesel engines up to 6L.	How to Jump Start using GBX75
GBX155	For gasoline engines up to 10L and diesel engines up to 8L.	How to Jump Start using GBX155

How long does Boost X take to recharge?

The USB-C IN/OUT port utilizes Power Delivery 3.0 technology capable of receiving/delivering up to 60W. The time to recharge a GBX45 will differ based on the discharge level and the power source used. Actual results may vary due to battery conditions.

Boost X is equipped with Fast Charge technology that allows it to be recharged at a rate of up to 60W. A compatible charger, capable of 60W USB-C Power Delivery 3.0, is required to fully utilize this feature. The Fast Charge LED will illuminate when rate of charge exceeds 15W, indicating USB Power Delivery 3.0 is active.

GBX45	USB-C Charging 16 hours at 2.5W 8 hours at 5W 4 hours at 10W Fast Charge 0.8 hours at 60W	How to Recharge GBX45. How to Fast Charge Boost X.
GBX55	USB-C Charging 28 hours at 2.5W 14 hours at 5W 7.2 hours at 10W Fast Charge 1.2 hours at 60W	How to Recharge GBX55. How to Fast Charge Boost X.
GBX75	USB-C Charging 20 hours at 5W Fast Charge 1.7 hours at 60W	How to Recharge GBX75. How to Fast Charge Boost X.
GBX155	USB-C Charging 64 hours at 2.5W 32 hours at 5W 16 hours at 10W Fast Charge 2.7 hours at 60W	How to Recharge GBX155. How to Fast Charge Boost X.

What is the internal battery capacity of Boost X?

GBX45	31 Watt-Hour Lithium-Ion
GBX55	46 Watt-Hour Lithium-Ion
GBX75	74 Watt-Hour Lithium-Ion
GBX155	99 Watt-Hour Lithium-Ion

Can Boost X recharge my smartphone and other USB devices?

Yes. Boost X can recharge any device that uses USB or USB-C charging.

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

Warranties & Registrations

Where can I obtain the user manual for Boost X?

GBX45	User Guide
GBX55	User Guide
GBX75	User Guide
GBX155	User Guide

How long is the warranty on Boost X?

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

Features

What is the starting current on Boost X?

GBX45	1,250 Amps (Peak)
GBX55	1,750 Amps (Peak)
GBX75	2,500 Amps (Peak)
GBX155	4,250 Amps (Peak)

What is the lumen rating of the LED flashlight?

GBX45	100 lumen LED flashlight.
GBX55	200 lumen LED flashlight.
GBX75	400 lumen LED flashlight.
GBX155	500 lumen LED flashlight.

Click here to learn more about the LED Flashlight Modes on Boost X.

Is Boost X waterproof?

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

How heavy is Boost X?

GBX45	2.16lbs (0.98kg)
GBX55	2.58lbs (1.17kg)
GBX75	3.77lbs (1.71kg)
GBX155	5.82lbs (2.64kg)

How long is the USB-C charging cable?

The provided USB-C cable is 24" (61 cm) in length. Boost charges with a standard USB-C port, so if a longer or short cable is prefered then the provided cable can be replaced with any compatible USB-C cable.

What types of batteries can Boost X jump?

NOCO Boost X 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.

Can Boost X charge my car's battery?

No. While Boost X 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 X hold a charge?

All Boost X 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 devices can Boost X recharge?

Boost X can recharge any device that uses USB or USB-C. This includes all generations of smartphones on the market, as well as HD action cameras, tablets, music players, headphones, earbuds, wireless speakers and more.

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

What is the USB port ratings on Boost X?

USB-A	5VDC 2.1A Max / 10W Max
USB-C	5V 3A/9V 3A/12V 3A/15V 3A/20V 3A

Can Boost X jump start small vehicles?

Yes. Boost X 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 X compatible with 220V outlets?

Yes. Boost X is USB-C rechargeable, so it’s not directly tied to the electrical service of your country (i.e. 120V or 220V). Use an AC to USB-C adapter or 12V to USB-C adapter to charge your device. A 12V USB-C Car Charger will work in any country or vehicle with a 12V port.

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

No. The 12V ports in a car are current limited at 8 Amps. Boost X delivers a maximum range of 1,000A to 4,250A, 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 X jump start a 6V vehicle?

No. Boost X 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 X jump start a motorcycle?

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

Can Boost X 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 plug the GBX45 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.

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

No. Boost X does not have a 12V output connection. Boost X can only power USB and USB-C powered devices.

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 X on an airplane?

Yes. All Boost X 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 X 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 X made in the USA?

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

Care Tips

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

If Boost X is not detecting the battery it is possible the voltage is too low to detect. Boost X 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 X 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.

GBX45	How to use Manual Override.
GBX55	How to use Manual Override.
GBX75	How to use Manual Override.
GBX155	How to use Manual Override.

Should I charge Boost X before using it?

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

What is the optimal storage temperature for Boost X?

NOCO Boost X should not be stored below -4ºF (-20ºC), and not exceed 122ºF (50ºC) for any reason. Storing Boost X 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 X?

NOCO Boost can operate within the temperature range -4ºF to 122ºF (-20ºC to 50ºC). Boost X 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 X in extreme heat?

No. Boost X 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 Boost X be left in direct sunlight in a car?

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

Is it possible to accidentally overcharge Boost X?

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

Can the battery inside Boost X be replaced?

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

My Boost X 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 the 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 X come with a carrying case?

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

GBX45	GBC101
GBX55	GBC102
GBX75	GBC103
GBX155	GBC104

Click here to find more NOCO Boost X 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

GBX75

Power LED

Illuminates White when unit is "on." Illuminates orange after the 60-second timeout countdown.

Reverse Polarity

Unit is connected to the battery in reverse. Reverse the connections.

Hot/Cold LEDs

Illuminates solid or flashes Blue when internal temperature is too low. Illuminates solid or flashes Red when internal temperature is too high.

Error LED

Blinks “on” and “off” in various sequences (from 1 to 6 blinks) to convey error conditions.

Charge LEDs

Indicates the charge level of the internal battery.

Boost LED

Illuminates White when Boost is active. The LED flashes white when Manual Override feature is active.

Fast Charge

Illuminates White when fast charge is active. Fast charge LED turns red (solid/blinking) when there is an error.

Buttons

GBX75

Power Button

Push to turn unit “on” & “off” or restart boost after 60-second timeout.

Manual Override

To enable, push and hold for three (3) seconds. WARNING: Disables safety protection and manually forces Boost "On."

Light Mode

Toggles the ultra-bright LED light through 7 light modes: 100% > 50% > 10% > SOS > Blink > Strobe > Off

Boost X

TROUBLESHOOTING.

ERROR

REASON / SOLUTIONS

Solid Red

Reverse polarity detected. / Reverse the battery connections.

Single (1) Flash

Short circuit detected on battery clamps. / Remove all loads, reconnect clamps to battery.

Double (2) Flash

High voltage detected at clamps (the GBX45 is connected to a voltage system greater than 12V, such as 24V).

Triple (3) Flash

Bad battery cell detected. / When an internal battery cell has failed during charging.

Quadruple (4) Flash

Charge timeout error (i.e. the GBX45 has been in bulk charge for too long).

Sextuple (6) Flash

Back-Charge detected into the GBX45 through the clamps while in a Boost Mode (i.e. the GBX45 is in Manual Override and then connected to a system greater than 12V, such as 24V).

Hot LED: Solid

Unit is fully operational, but approaching upper temperature limit. / Allow the unit to cool.

Hot LED: Flashing

Unit is too hot to jump start, only the flashlight is available in this state. / Allow the unit to cool.

Cold LED: Solid

Unit is fully operational, but approaching lower temperature limit. / Allow the unit to warm up.

Cold LED: Flashing

Unit is too cold to jump start, only the flashlight is available in this state / Allow the unit to warm up.

Flashing Red

If charging the unit, check the cable or charger for damage / If charging a USB-C device, check cable or device for damage / If problem persists, contact NOCO support.

Solid Red

Connected Charger is Incompatible. / Unplug USB Cable, Turn Off/On the Unit, Use Different Charger.

Connect, Charge, and Store.

GBX75 Accessories

The GBX75 is compatible with an array of NOCO accessories. Fast charge in the car with GBC011 or at home with the U65. Store and protect your GBX75 with the GBC103.

View All Accessories