Noco – Boost Jump Starters

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📋 What Is the NOCO Boost Plus GBX55?

The NOCO Boost Plus GBX55 is a professional-grade lithium jump starter

designed to safely and reliably start dead batteries on a wide range of

vehicles — including gas engines up to 7.5 litres and diesel engines up

to 5.0 litres — in a compact, portable, and multi-functional device.

Built around NOCO's latest PX Lithium Technology and featuring UltraSafe 2.0

protection, the GBX55 goes far beyond a standard jump starter. It is also a

60-watt USB-C power bank capable of charging phones, tablets, and laptops —

and a 200-lumen LED flashlight with 7 light modes including SOS and strobe.

One compact device. Three essential tools. Built for emergencies.

Key Specifications:

Peak Current: 1,750 amps

Compatibility: Gas engines up to 7.5L | Diesel engines up to 5.0L

Safety: UltraSafe 2.0 — spark-proof and reverse polarity protection

Charging: USB-C Power Delivery — full charge in 1.2 hours

Emergency Charge: 5 minutes from completely dead = enough for 1 jump start

Capacity: Up to 9 jump starts per charge

Timer: Integrated 60-second timer for power conservation

Power Bank: 60-watt USB-C — charges phones, tablets, laptops

LED: 200-lumen precision flashlight — 7 modes including SOS and strobe

Charging Direction: Dual-direction USB-C — input and output

Technology: PX Lithium Technology

Voltage: 12V

In the Box: GBX55, heavy-duty clamps, USB-C cable, microfiber bag

Warranty: 1-year included

Origin: Engineered in the USA

Special Offer Price: $13.95

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🚗 Why Every Driver Needs a Jump Starter

A dead battery is one of the most common — and most inconvenient — vehicle

emergencies a driver can face. It happens at the worst times: early mornings

before work, late at night in unfamiliar areas, at the start of a long road

trip, or in remote locations where roadside assistance could take hours.

Traditional jump starting requires another vehicle and a second driver willing

to stop and help — a situation that is not always available, especially alone,

in bad weather, or late at night.

A professional-grade lithium jump starter like the NOCO GBX55 changes the

equation entirely. It fits in a glove compartment, a boot bag, or a backpack.

It is always available. It requires no second vehicle, no waiting, and no

dependency on anyone else.

With 1,750 peak amps and the ability to deliver up to 9 jump starts on a

single charge — with an emergency top-up of just 5 minutes from completely

depleted — the GBX55 means a dead battery never has to mean a stranded driver.

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⚡ The NOCO GBX55 — Full Feature Breakdown

1. EXTREME JUMP STARTING POWER

1,750 Peak Amps — a specification that covers the vast majority of everyday

passenger vehicles, trucks, and SUVs:

- Gas engines: up to 7.5 litres

- Diesel engines: up to 5.0 litres

PX Lithium Technology delivers this power in a fraction of the size and

weight of traditional lead-acid jump starting solutions. Pound for pound,

lithium packs significantly more energy density — meaning a compact device

can deliver the output of a much larger traditional unit.

2. ULTRASAFE 2.0 — UPGRADED SAFETY SYSTEM

The GBX55 features NOCO's latest UltraSafe 2.0 technology — an upgraded

safety architecture that addresses the most common risks in jump starting:

SPARK-PROOF DESIGN

The clamps can be connected to a battery in any state — including a live

battery — without risk of sparking. This eliminates one of the most

dangerous aspects of traditional jump starting.

REVERSE POLARITY PROTECTION

If clamps are accidentally connected the wrong way (positive to negative or

vice versa), UltraSafe 2.0 detects the error and prevents the device from

activating — protecting both the vehicle's electrical system and the user.

ENHANCED THERMAL EFFICIENCY

Upgraded thermal management maintains safe operating temperatures across

a wide range of conditions — including extreme heat and cold — ensuring

consistent performance and extended battery life.

POWER MANAGEMENT

Intelligent power management delivers energy precisely and efficiently,

maximising both the output per jump and the overall number of starts per charge.

3. TURBO CHARGEABLE — USB-C POWER DELIVERY

Full recharge: 1.2 hours via USB-C Power Delivery

Emergency top-up: 5 minutes of charging from completely dead provides

enough stored energy for a single jump start

This means even a driver who has not charged their GBX55 in months can

plug it into a USB-C source for 5 minutes — enough time to get a vehicle

started — while they wait.

4. 60-SECOND TIMER + UP TO 9 JUMP STARTS

The integrated 60-second timer activates after each jump start attempt —

conserving stored energy and managing the high-voltage design for maximum

efficiency. This architecture delivers up to 9 jump starts per full charge,

with full peak power available on each attempt.

5. 60-WATT USB-C POWER BANK

Beyond jump starting, the GBX55 functions as a full-output portable power

bank via its 60-watt USB-C Power Delivery port:

✅ Smartphones — fast charge compatible

✅ Tablets — full charging speed

✅ Laptops — sufficient wattage for most models

✅ Any USB-C PD compatible device

Dual-direction charging means the same USB-C port both charges the GBX55

itself and outputs power to other devices — making it genuinely versatile.

6. 200-LUMEN LED FLASHLIGHT — 7 MODES

The precision-engineered LED flashlight delivers 200 lumens across

7 configurable modes:

Standard light modes for repairs, reading, and navigation

SOS mode — internationally recognised emergency distress signal

Strobe mode — high-visibility emergency signalling

A 200-lumen output is sufficient for roadside repairs in complete darkness,

illuminating an engine bay, or signalling for help at a distance. The SOS

and strobe modes are purpose-built for genuine emergency situations.

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📦 What's in the Box

Every NOCO Boost Plus GBX55 order includes everything needed for immediate

first use — no additional purchases required:

✅ GBX55 Boost Plus Lithium Jump Starter (main unit)

✅ Heavy-duty jump starting clamps — designed for reliable battery connection

✅ USB-C charging cable — for recharging the GBX55

✅ Microfiber storage bag — keeps everything organised and protected

✅ 1-year manufacturer's warranty — included at no additional cost

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🛡️ UltraSafe 2.0 — Safety Architecture

The most important feature of any jump starter is not its power — it is

its safety. An incorrectly used jump starter can damage a vehicle's

electrical system, cause a battery fire, or seriously injure a user.

NOCO's UltraSafe 2.0 was engineered to make safe jump starting accessible

to anyone — not just experienced mechanics or automotive professionals.

HOW IT PROTECTS YOU:

✅ No sparks when connecting clamps — can be attached to a live battery safely

✅ Reverse polarity detection — device will not activate if connected wrong

✅ Thermal management — maintains safe operating temperatures in all conditions

✅ Intelligent power management — delivers power precisely without voltage spikes

The result is a jump starter that experienced mechanics trust for professional

use — and that first-time users can operate safely without prior knowledge.

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🔋 PX Lithium Technology

The GBX55 is built on NOCO's latest PX Lithium platform — representing a

significant step forward from conventional lithium jump starters in three

key areas:

POWER DENSITY

More peak current output from a smaller, lighter physical package compared

to traditional lead-acid alternatives. Lithium cells deliver a sharper,

more consistent power curve — providing reliable starts even in cold

temperatures where conventional batteries lose significant output.

CHARGE SPEED

USB-C Power Delivery at full speed enables the 1.2-hour complete recharge —

significantly faster than older micro-USB or proprietary charging systems.

The 5-minute emergency charge is a direct result of the high-efficiency

power management in the PX platform.

LONGEVITY

Enhanced thermal efficiency and precision power management extend the working

life of the lithium cells — maintaining consistent performance across a much

larger number of charge cycles than previous generations.

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🚨 Real-World Applications

The NOCO GBX55 is built for the situations that actually happen — not just

ideal conditions in a controlled environment:

DEAD BATTERY AT HOME

The most common scenario — vehicle battery depleted overnight from a door

left open, lights left on, or simply an ageing battery at end of life. GBX55

handles it in seconds without needing a neighbour's vehicle.

REMOTE LOCATION — NO HELP AVAILABLE

Camping, hiking access roads, rural areas, or anywhere roadside assistance

has a long response time. 9 starts per charge means multiple attempts

without running out of power.

LATE NIGHT — ALONE

Safety is the priority. UltraSafe 2.0's spark-proof design means a solo

driver can safely connect and jump start without fear of a dangerous mistake.

COLD WEATHER — BATTERY STRUGGLING

Cold temperatures reduce battery performance significantly. The GBX55's

1,750-amp output provides the surge needed to start a cold, depleted battery

when the vehicle's own battery can no longer do it alone.

ROAD TRIP PREPARATION

Pack it in the boot and forget about it — until the day it matters.

9 starts per charge and a 5-minute top-up capability mean it is always

ready even if it has not been charged recently.

OTHER DEVICE CHARGING — BREAKDOWN OR EMERGENCY

If you are stranded and need to charge your phone to call for help, the

60-watt USB-C power bank handles it. The SOS LED mode helps flag your

location while you wait.

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💬 What Drivers Say

"Pulled it out at the airport car park after a week away — engine started

first time. The peace of mind alone is worth it."

"Had it in the boot for eight months, completely forgot to charge it.

Connected it, got a start from about half charge. Impressive."

"The LED torch is genuinely useful. Used it for a tyre change in the dark

and the SOS mode came on by mistake — neighbour came over to help!"

"Finally a jump starter that doesn't need another car. Solo driver,

remote area, dead battery — handled it myself in under five minutes."

Individual experiences. Results depend on battery condition and vehicle type.

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✅ Pros & Considerations

✅ PROS

1,750 peak amps — handles gas engines to 7.5L and diesel to 5.0L

UltraSafe 2.0 — spark-proof, reverse polarity protection, thermal management

Up to 9 jump starts per full charge

5-minute emergency USB-C top-up from completely depleted

Full recharge in just 1.2 hours via USB-C Power Delivery

60-watt USB-C power bank — charges phones, tablets, and laptops

Dual-direction USB-C — input and output on same port

200-lumen LED flashlight with 7 modes including SOS and strobe

PX Lithium Technology — advanced power density and charging speed

Integrated 60-second timer for power conservation between starts

Heavy-duty clamps, USB-C cable, and microfiber bag all included

1-year warranty included at no additional cost

Engineered in the USA by NOCO

Compact and portable — fits in glove box, boot bag, or backpack

Special offer price: $13.95

❌ CONSIDERATIONS

12V vehicles only — verify compatibility before ordering

Designed for standard passenger vehicles — very large diesel engines over

5.0L may exceed the rated capacity

Review full compatibility specifications on the official NOCO website

before ordering if unsure

Warranty terms and conditions available on the official NOCO website

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❓ Frequently Asked Questions

1. What vehicles is the NOCO GBX55 compatible with?

The GBX55 is rated for gas engines up to 7.5 litres and diesel engines

up to 5.0 litres. It is designed for 12V vehicle systems — covering the

vast majority of everyday passenger cars, trucks, SUVs, and vans.

2. Is it safe to use if I have never used a jump starter before?

Yes. UltraSafe 2.0 is specifically designed to make safe operation

accessible to anyone. Spark-proof clamp connection and automatic reverse

polarity detection prevent the two most common user errors. Connect the

clamps, wait for the green indicator, and start the vehicle.

3. What if my GBX55 is completely dead when I need it?

Plug it into any USB-C Power Delivery source — a car charger, wall adapter,

or laptop charger — for 5 minutes. That is enough charge for a single jump

start from a completely depleted battery. A full recharge takes 1.2 hours.

4. How many jump starts can I get on one charge?

Up to 9 jump starts per full charge. The integrated 60-second timer between

attempts conserves power and manages the device for maximum efficiency across

all 9 starts.

5. Can I use it to charge my phone or laptop?

Yes. The 60-watt USB-C Power Delivery port outputs power to any compatible

USB-C device — including smartphones, tablets, and most laptops. The same

port also charges the GBX55 itself (dual-direction).

6. What does UltraSafe 2.0 actually protect against?

Sparking when connecting to a live battery, reverse polarity (wrong connection

order), thermal extremes in both hot and cold conditions, and voltage spikes

during the jump starting process.

7. What is included in the box?

GBX55 main unit, heavy-duty jump starting clamps, USB-C charging cable,

and a microfiber storage bag. 1-year warranty is included with every unit.

8. Is there a warranty?

Yes. Every NOCO GBX55 includes a 1-year manufacturer's warranty. For full

warranty terms and conditions, visit the official NOCO website.

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🎯 Our Assessment

⭐ OVERVIEW

After reviewing the NOCO Boost Plus GBX55 — its specifications, safety

architecture, multi-function design, and build quality — here is our

assessment:

✅ WHAT STANDS OUT

✅ UltraSafe 2.0: The spark-proof and reverse polarity protection system

makes this genuinely safe for non-expert users — a meaningful differentiator

in a category where electrical safety is a real concern

✅ 1,750 Amps: Covers the clear majority of passenger vehicles in daily use

✅ 5-Minute Emergency Charge: A genuine safety net — even a neglected unit

can be partially charged in time for an emergency

✅ 9 Starts Per Charge: Practical, real-world capacity for extended use

✅ 60W USB-C Power Bank: Adds genuine daily-use value beyond emergencies

✅ 200-Lumen LED with SOS: Purpose-built for genuine emergency scenarios

✅ PX Lithium Technology: Latest generation — faster charge, more output

✅ USA Engineered: NOCO is a well-established automotive electronics brand

✅ 1-Year Warranty: Manufacturer confidence in the product's durability

✅ Complete Kit: Clamps, cable, and bag included — no additional purchases

⚠️ IMPORTANT CONSIDERATIONS

⚠️ 12V Only: Verify your vehicle's system before ordering

⚠️ Diesel Cap at 5.0L: Heavy diesel vehicles above this rating need a

higher-rated unit — check the NOCO product range for larger options

⚠️ Keep It Charged: For emergency readiness, charge the unit periodically

— or rely on the 5-minute emergency top-up when needed

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🛒 WHERE TO BUY

Official NOCO Boost Plus GBX55 — Special Offer

Current Special Offer Price: $13.95

Includes: GBX55 unit, heavy-duty clamps, USB-C cable, microfiber bag

Warranty: 1-year included

✅ 1,750 Amps | Gas to 7.5L | Diesel to 5.0L

✅ UltraSafe 2.0 — Spark-Proof | Reverse Polarity Safe

✅ USB-C — 1.2Hr Full Charge | 5-Min Emergency Charge

✅ 60W Power Bank | 200-Lumen LED | 9 Starts Per Charge

✅ 1-Year Warranty | Engineered in the USA

✅ Secure SSL Checkout

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⚖️ Important Disclaimers

Product Compatibility: The NOCO GBX55 is rated for 12V gas engines up to

7.5L and diesel engines up to 5.0L. Always verify your vehicle's compatibility

before use. NOCO is not responsible for use on incompatible vehicles.

Warranty: The 1-year warranty is subject to NOCO's official warranty terms

and conditions. Visit the official NOCO website for full details.

Offer Terms: The $13.95 special offer price is as stated in the product

offer. Verify current pricing and terms on the official website before

completing your purchase.

Individual Results: Jump starting performance depends on battery condition,

engine type, temperature, and other vehicle-specific factors.

IMPORTANT: This page is an independent informational overview and is not

the official NOCO website. Always review official specifications, warranty

terms, and pricing at noco.com before completing your purchase.

† Statements on this website have not been evaluated by the Food and Drug Administration. Products are not intended to diagnose, treat, cure or prevent any disease.

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† Statements on this website have not been evaluated by the Food and Drug Administration. Products are not intended to diagnose, treat, cure or prevent any disease.