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  • VIDEO
  • NOCO Boost X GB55: 1750A UltraSafe Jump Starter Power Pack – 12V Car Battery Booster, Portable Power Bank & Jump Leads - For 7.5L Petrol and 5.0L Diesel Engines
  • All New BOOST XMerchant Video

NOCO Boost X GB55: 1750A UltraSafe Jump Starter Power Pack – 12V Car Battery Booster, Portable Power Bank & Jump Leads - For 7.5L Petrol and 5.0L Diesel Engines

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About this item

  • X FOR EXTREME — A new class of lithium jump starters. Rated at 1,750 amps for powerful starts on petrol engines up to 7.5L and diesel engines up to 5.0L - built for extreme performance.
  • ULTRASAFE 2.0 — Upgraded spark-proof and reverse polarity protection with enhanced thermal efficiency and power management for even safer operation and extended battery life.
  • TURBO CHARGEABLE — Recharges in just 1.2 hours via USB-C Power Delivery, or gain enough power for a jump start in just 5 minutes - even from a completely depleted battery.
  • 60-SECOND TIMER — Integrated 60-second timer conserves power from its high-voltage design - delivering up to 8 jump starts per charge with extreme energy at every start.
  • CHARGE EVERYTHING — 60-watt USB-C Power Delivery lets you charge phones, tablets, laptops, and more. Dual-direction charging turns Boost X into a high-output portable power bank.
  • INTEGRATED LED FLASHLIGHT — Precision-engineered 200-lumen LED with 7 light modes, including SOS and strobe. Illuminate repairs, emergencies, or low-light environments.
  • WHAT’S IN THE BOX — GBX55 jump starter, heavy-duty clamps, USB-C charging cable, and microfiber storage bag. Backed by a 1-year warranty and engineered in the USA.
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Top Brand

NOCO

94% positive ratings from 1K+ customers

50K+ recent orders from this brand


From the brand


From the manufacturer

The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked.
NOCO Boost X GBX55 1750A 12V UltraSafe Lithium Jump Starter, Up To 7.5L Gas & 5.0L Diesel Engines

GBX55

GBX45

GBX75

GBX155

Customer Reviews
4.5 out of 5 stars 3,965
4.5 out of 5 stars 13,872
4.4 out of 5 stars 5,162
4.2 out of 5 stars 6,435
Amps
1750 Amps 1250 Amps 2500 Amps 4250 Amps
Gas Engines
Up To 7.5 Liters Up To 6.5 Liters Up To 8.5 Liters Up To 10.0 Liters
Diesel Engines
Up To 5.0 Liters Up To 4.0 Liters Up To 6.5 Liters Up To 8.0 Liters
LED Lumens
200 Lumens 100 Lumens 400 Lumens 500 Lumens
Fast Charger
-- -- included included

Product Information

Technical Details

Manufacturer ‎NOCO
Brand ‎NOCO
Model ‎GBX55
Product Dimensions ‎16.1 x 10.01 x 23.19 cm; 1.53 kg
Batteries ‎1 Lithium Ion batteries required.
Item model number ‎GBX55
Exterior ‎Machined
Manufacturer part number ‎GBX55
OEM Part Number ‎GBX55
Bulb type ‎LED
Special Features ‎1750A 12V Portable Lithium Car Battery Jump Starter Power Pack, 200 Lumen LED Flashlight with Multiple Modes, including SOS., 60-Watt USB-C Power Delivery Technology, Portable Power Bank for USB Devices, Reverse Polarity and Spark-Proof Protection
Amperage ‎1750 Amps
Wattage ‎46 kilowatt hours
Item Weight ‎1.53 kg

Additional Information

ASIN B08WZKRHZZ
Customer Reviews
4.5 out of 5 stars
Best Sellers Rank
Date First Available 19 Feb. 2021

Warranty & Support

Amazon.com Return Policy:Regardless of your statutory right of withdrawal, you enjoy a 30-day right of return for many products. For exceptions and conditions, see Return details.

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NOCO Boost X GB55: 1750A UltraSafe Jump Starter Power Pack – 12V Car Battery Booster, Portable Power Bank & Jump Leads - For 7.5L Petrol and 5.0L Diesel Engines


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What's in the box?

  • GBX55 UltraSafe Jump Starter Power Pack
  • Power Bank with 60W USB-C Power Delivery
  • Heavy-Duty Jumper Cable Clamps
  • USB-C Charging Cable
  • Microfiber Storage Bag
  • User Guide for Jump Starter
  • Customer reviews

    4.5 out of 5 stars
    3,965 global ratings

    Customers say

    Customers find the jump starter to be a brilliant piece of kit with plenty of power, easy to use, and well worth the money. They appreciate its compact size, with one customer noting it's as small as a tissue box. The functionality and battery life receive mixed reviews - while some say it works well, others report it doesn't work from day one and stops charging. Customers like the storage capacity, with one mentioning it can be stored in the vehicle with no issues.
    AI Generated from the text of customer reviews

    Select to learn more

    37 customers mention quality, 32 positive, 5 negative
    Customers praise the jump starter's quality, describing it as a first-class piece of kit and an excellent car charger, with one customer noting it's better than traditional heavy jump starters.
    Excellent device. Broke down yesterday as the auxillary belt on the car failed and the car battery wasn't charging....Read more
    Brilliant bit of kit. Its got a lot of power for a small unit. Everything about it is Very robust. Easy to use.Read more
    What a great product! got a chinese one at first.. dont bother never worked sent that back and got this one....Read more
    Great ...........Read more
    17 customers mention ease of use, 17 positive, 0 negative
    Customers find the jump starter easy to use, with one mentioning it's more convenient than traditional jump leads.
    First class piece of kit easy to use never need one off those overweight jump starters againRead more
    Used it to start a flat battery in motorhome (2.3ltr diesel). Very easy to use and started first time....Read more
    Great piece of equipment, small, light weight and so easy to use....Read more
    This is a good tool to have in your car as temperatures drop and you need your lights on the demister radio and your battery is going down a few...Read more
    14 customers mention compact size, 14 positive, 0 negative
    Customers appreciate the compact size of the jump starter, with one customer noting it's about the size of a tissue box.
    Small and portable but packs a punch. Replaces my old bigger boost pack and very happy so farRead more
    Compact and well designed. Have used it twice to start my Citroen Relay van which was suffering from flat battery....Read more
    ...Small compact well worth it the money.Read more
    ...Has built in light which is very useful. There are different sizes/powers…you can save a bit of money by matching the model to your car engine...Read more
    13 customers mention value for money, 10 positive, 3 negative
    Customers find the jump starter well worth the money.
    ...This has been invaluable for the few times I've used it and well worth the money....Read more
    ...It was ~£185 at time of purchase and whilst not cheap I think it is well worth it....Read more
    Very good value n qualityRead more
    ...this on a lol C1 and it hardly managed to turn the engine over.. expensive torch!Read more
    8 customers mention power, 8 positive, 0 negative
    Customers praise the jump starter's power, with one mentioning it provides plenty of energy.
    Brilliant bit of kit. Its got a lot of power for a small unit. Everything about it is Very robust. Easy to use.Read more
    ...Its really easy to use with plenty of power, easily starting my 2.2ltr diesel motorhome and a few times on my spare car which we use to tow behind...Read more
    Small and portable but packs a punch. Replaces my old bigger boost pack and very happy so farRead more
    Excellent price. Very powerful machineRead more
    6 customers mention storage capacity, 6 positive, 0 negative
    Customers like the jump starter's storage capacity, with one mentioning it can be stored in the vehicle with no issues, while another appreciates the clamp for tidy storage.
    Small and portable but packs a punch. Replaces my old bigger boost pack and very happy so farRead more
    Size of a tissue box but will start an HGV. Simple to use, keep it in the car, you won’t even notice it’s there....Read more
    ...and so much more convenient than needing jump leads and conveniently positioned car, or delay of hooking up a charger. Convenient size too.Read more
    ...Regardless I appreciate the neat design with the place for the clips. to clamp on for tidy storage....Read more
    33 customers mention functionality, 23 positive, 10 negative
    Customers have mixed experiences with the jump starter's functionality, with some reporting it works well, while others mention it doesn't work from day one or barely manages to turn the engine over.
    ...at night in an unlight car park and it was very easy and the car started immediately as it has done every time I use it....Read more
    ...fully charging, attached it to my 3 litres diesel vehicle and started instantly, without even having to use manual mode....Read more
    ...Charged and used item for the first time as instructed. Item could not jump start a 1 litre petrol vehicle when it states up 5 litre diesel and...Read more
    ...Very easy to use and started first time....Read more
    24 customers mention battery life, 9 positive, 15 negative
    Customers have mixed experiences with the jump starter's battery life, with several reporting that it stops charging or doesn't hold a good charge.
    ...Flat battery today as I left something on in the car while at a wedding 4 hours away from home....Read more
    ...pack, worked flawlessly after being charged and then sat for 4 months before being needed. Jumped x2 diesels and a petrol v6 no problem....Read more
    ...Now after three months it has stopped charging. I have contacted the warranty - i have not had a reply....Read more
    ...As an added point it takes forever to charge by normal usb charger so I purchased a 60 watt usbc laptop charger for around £20 on Amazon which will...Read more