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NOCO Boost X GBX155 UltraSafe 4250-amp lithium jump starter

Item # 598GBX155

Give your dead 12-volt battery a charge quickly and safely.

Give your dead 12-volt battery a charge quickly and safely.

1 question - 1 answer

Item # 598GBX155

In stock
$369.95

About the NOCO Boost X GBX155

Dave Delamere

Dead battery? No problem

It's just a fact — eventually, your vehicle will need a jump start. The lithium-ion power pack in NOCO's Boost X GBX155 rechargeable jump starter delivers 4250 amps to jump start almost any vehicle. The jumper cables are built in so you'll never lose them, and it adds charging for other USB devices too.

Dead battery? No problem

It's just a fact — eventually, your vehicle will need a jump start. The lithium-ion power pack in NOCO's Boost X GBX155 rechargeable jump starter delivers 4250 amps to jump start almost any vehicle. The jumper cables are built in so you'll never lose them, and it adds charging for other USB devices too.

NOCO GBX155 Boost X UltraSafe lithium jump starter

Power up that battery so you can get back on the road quickly.

Fast-charging starter

The GBX155's USB-C in/out port with Power Delivery enables this starter to be charged in approximately 2.7 hours, with built-in technology to keep it charging safely. The pack's battery holds its charge level for over a year, but if the jump starter is completely out of juice, a 5-minute charge will provide enough power for you to start your vehicle. The GBX155 is suitable for jump starting cars, boats, RVs, trucks, and other vehicles with up to 10-liter gas or 8-liter diesel engines. Its patented safety protection ensures spark-proof connections and reverse polarity protection. 

Portable power pack

Sealing its reputation as a great road trip companion, the GBX155 also works as a portable power pack for recharging portable electronics. The power pack's USB-C port allows you to charge the GBX155 from any USB-powered port like a wall charger (such as the NOCO U65) or the included car charger. Dual USB-A ports provide power for depleted electronics and wearables, such as smartphones, smartwatches, and action cameras.

Flashlight and display

As well as charging, the GBX155 also includes a built-in LED flashlight with six modes, including SOS and emergency strobe. Its 500-lumen output will help you see at night, and also serves as a warning light when your vehicle is disabled and needs roadside assistance. A top-panel display offers up info about the charging status, as well as power buttons for the light and jump starter.

READ LESS

Product highlights:

  • portable jump starter and power bank
  • lithium-ion battery
  • 4250-amp jump-start current
  • starts gas engines up to 10 liters; diesel engines up to 8 liters
  • USB-C in/out port with Power Delivery quickly charges jump starter and charges USB-C devices
  • two USB-A charging outputs
  • fully charges in 2.7 hours; minimum charge for starting vehicle in 5 minutes
  • 500-lumen LED flashlight with emergency SOS and strobe lighting
  • IP65 rating with ports closed
  • includes microfiber carry bag, 24" USB-A to USB-C cable, 24" 12-volt adapter to USB-C cable
  • dimensions: 12.03"L x 6.90"W x 2.72"D (including jumper cables)
  • warranty: 1 year
  • MFR # GBX155

What's in the box:

  • Lithium 12-volt jump starter with attached battery clamps on 19" cables
  • 27" USB-C to USB-A cable
  • 25" Lighter adapter to USB-C cable
  • Cloth storage pouch
  • User Guide & Warranty

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More details on the NOCO Boost X GBX155

Russ B.

Product Research

Features

Boost X Lithium Jump Starter: The Noco Boost X GBX155 is a portable lithium-ion battery jump starter pack that delivers 4250-amps for jump starting a dead battery in seconds. The Boost X GBX155 powerful lithium jump starter features Noco's latest PX Lithium Technology that delivers incredible power, ultra-fast charging, and unmatched versatility. Its designed for cars, boats, RVs, trucks, and more, with gas engines up to 10.0 liters and diesel engines up to 8.0 liters.

12V Lead-Acid Battery Compatible: The GBX155 is designed to jump start 12-volt lead-acid batteries, including Wet Cell, Gel Cell, AGM, EFB, and MF types. Applications include automobiles, marine craft, RVs, trucks, vans tractors, and more.

UltraSafe 2.0 Protection: The Noco jump starter features enhanced patented safety technology that provides spark-proof connections and reverse polarity protection making it safe and easy for anyone to use.

Jump Starting: After connecting the fully-charged Noco GBX155 to the battery, most vehicles will immediately start. If the vehicle does not start right away, wait 20-30 seconds and try again. Do not attempt more 5 consecutive jump starts within a 15 minute period. Allow the GBX155 to rest for 15 minutes before attempting to jump start the vehicle again. A 60-second timeout is initiated as soon as the GBX155 is connected to a battery. After 60 seconds has elapsed with no charging activated, the jump starting function will be disabled. Powering the jump started Off and On again will reset the unit. If your battery is below 3-volts, the Boost LED will be "Off". This is an indication that the GBX155 can not detect a battery. If you need to jump start a battery below 3-volts there is a Manual Override feature, which allows you to force "On" the jump start function.

Heavy-Duty Battery Clamps: The included heavy-duty battery clamps span up to 16" in length, and are capable of reaching most battery posts or chassis ground. It features a high-temperature silicone wire insulation that remains extremely flexible down to 0°F and withstands high levels of duress and even prolonged exposure to high temperatures.

USB-C Input/Output & USB-A Output: The Noco GBX155 is equipped with a 60W USB-C Input/Output port with Power Delivery (PD) 3.0 technology, providing lighting-fast recharges with compatible chargers (sold separately). The USB-C Power Delivery port can also be used for charging USB-C devices, like smartphones, tablets, laptops, wearables, and more, with up to 60 watts of available power. A USB-A Output is also provided for charging devices, with 2.1A of available power. Using the USB-C Input/Output port, the jump starter can be recharged using the Noco U65 65W USB-C Charger (sold separately), or from a powered USB port, AC adapter, or the included USB car charger. Using USB-C Power Delivery 3.0, the GBX155 can be fully recharged in approximately 1.2 hours and go from 0% to jump starting with 5 minutes of charge. Typical recharging times include:

Charger Rating Recharge Time
60W (USB-C or Auto Charger) 2.7 Hours
10W 16 Hours
5W 32 Hours
2.5W 64 Hours

 

Notes:

  • GBX155 recharging times will vary based on the discharge level and the USB power source used.
  • The GBX155 comes partially charged out of the box and needs to be fully charged prior to use.
  • When charging USB devices, it is important to power On the GBX155 first before plugging in a USB device. If the USB device is DRP compatible, the GBX155 will drain power from the device, if the jump starter is powered Off.

Charge LEDs: The GBX155 has four Charge LEDs - 25%, 50%, 75% and 100%. These Charge LEDs indicate the internal battery's state-of-charge (SOC).

  • The 25% Charge LED will pulse while charging and will be solid Red when the internal battery is 25% charged.
  • The 50% Charge LED will pulse while charging and will be solid Red when the internal battery is 50% charged.
  • The 75% Charge LED will pulse while charging and will be solid Yellow when the internal battery is 75% charged.
  • The 100% Charge LED will pulse while charging and will be solid Green when the internal battery is fully charged.

500-Lumen LED Flashlight: The GBX155 feature's a built-in rechargeable, lithium-powered LED flashlight with seven light modes - 100%, 50%, 10%, SOS, Blink, Strobe, & Off. With multiple luminosity settings, it's immediately adaptable to a variety of situations. Use its powerful flashlight to help you see your engine, change a tire at night, or even warn oncoming traffic when disabled and in need of roadside assistance.

Simple User Interface: Noco designed the GBX155's user interface to be simple and easy to understand. LED status indicators display the internal lithium battery's charge level and charging status. Error indicators show when connected in reverse polarity or temporarily disabled for thermal protection. Or simply turn on the LED flashlight, recharge a USB device, or use manual override for deeply discharged batteries.

Rugged Compact Design: This compact, pocket-sized lithium jump starter is IP65 rated (with ports closed) to protect it against water, shock, dirt, and dust. It's smaller and lighter than traditional battery booster packs and conveniently stores in a glove compartment, center console, trunk, or toolbox.

Protection Circuitry: The GBX155 will display an Error Condition when a reverse polarity condition is present, a battery falls below 3 volts, or the internal battery is overheating. Individual Error LEDs will light, indicating the polarity is reversed or the internal battery is too hot or too cold. The Boost Light will not come on if the connected battery is below 3 volts.

Specifications:

  • Internal Battery: 99 Wh Lithium ion rechargeable
  • Peak Current Rating: 4250A
  • Operating Temperature: -4°F to 122°F
  • Charging Temperature: 32°F to 104°F
  • Storage Temperature: -4°F to 122°F
  • Ingress Protection: IP65 (w/ ports closed)
  • USB-C (Input): 5V @1.5A, 9V @3A, 12V @3A, 15V @3A, 20V @3A
  • USB-C (Output): 5V @3A, 9V @3A, 12V @3A, 15V @3A, 20V @3A
  • USB-A (Output): 5V @2.1A (10W) maximum
  • LED Flashlight: 500 Lumens
  • Dimensions (w/clamps): Width: 12.50", Height: 2.73", Depth: 6.35"
  • Weight: 5.82 lbs.

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Customer Q&A

1 question already asked

Q
How to override?
jeff  Jan 11, 2024
1 answer
A
Greetings Jeff. Thank you for your question. To enable, push the override button, and hold for three (3) seconds. WARNING: Disables safety protection and manually forces Boost «On». Only for use when a battery voltage is too low to be detected.
hogan  Jan 11, 2024 (Staff)

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