#1 Home Improvement Retailer

Boost X 12-Volt 4250 Amp Lithium Jump Starter

$36995
Apply Now
$undefined.00 /mo* suggested payments with months* financingApply Now
  • Engineered with technology to charge up to 5 times faster
  • Spark and reverse polarity protection for added safety
  • 500 Lumens LED flashlight for convenience
  • View More Details
caret

Product Details

GBX155 - 12-Volt 4250 Amp UltraSafe Lithium Ion Jump Starter. An all-new design with extreme jump starting power for fast and powerful engines starts. Introducing a new kind of jump starting experience, featuring our latest PX Lithium Technology that delivers incredible power, ultra-fast charging, and unmatched versatility. This isn't an upgrade. It's a whole new series - BOOST X with more starting power. The new Boost X combines tremendous power with unmatched ease of use, versatility, and maximum conductivity.
  • Compact, yet powerful lithium jump starter rated at 4250 Amp
  • Ultra-safe and mistake-proof design with spark-proof technology and reverse polarity protection, which allow it to safely connect to any battery
  • Ultra-bright 500 Lumens LED flashlight with 7-light modes, including SOS and emergency strobe
  • Recharge your personal devices on the go, like smartphones, tablets, e-watches and more
  • Designed for gas engines up to 10.0 l and diesel engines up to 8.0 l for cars, boats, lawn mowers and more
  • Return Policy

Additional Resources

From the Manufacturer

caret

Specifications

caret

Questions & Answers

19Questions
caret
Q:Does this come with its own charger or do you have to buy that separately?
by|Feb 6, 2023
1 Answer
Answer This Question

A:  It comes with a USB-C Cable for charging from any USB source. A wall adapter/ac adapter is not included.

by|Feb 6, 2023
    caret
    Q:Can this high amp rating of 4250 be used on regular cars like honda civic, ford focus, sedans, cadillac? Isthis too powerful for these vehicles oris there a better suited noco that will give me the absolute best and safe chance of starting a dead battery?
    by|Jan 30, 2023
    1 Answer
    Answer This Question

    A:  The GBX155 is safe to use on vehicles with smaller engines, the unit will only use the amount of power needed for the jump start. So it wouldn't start a small sedan using the same amount of power it would for a large pick up truck, for example. The GBX155 is recommended for vehicles with gas engines up to 10L and diesel engines up to 8L.

    by|Jan 31, 2023
      caret
      Q:How many cars, with a slightly discharged battery, can I assist before the green light disappears?
      by|Jan 19, 2023
      1 Answer
      Answer This Question

      A:  This would depend on the size of the engines being started. The GBX Series Boost X features NOCO's latest PX Lithium Technology allowing for maximum power delivery and faster recharge of the unit's internal battery. The GBX delivers more power and can be recharged between each use quickly with the new USB-C Fast Charge feature.

      by|Mar 2, 2023
        caret
        Q:What are the Peak and Instant Amp rating of this unit?
        by|Dec 29, 2022
        1 Answer
        Answer This Question

        A:  Peak Amp rating is 4,250A

        by|Jan 3, 2023
          Showing 1-4 of 19
          caret

          Customer Reviews

          4.5 out of 5
          (73)
          • 4.5
            out of 73 reviews
          • 100%recommend this product
          Filter by:
          Showing 1-10 of 73 reviews
          Very happy to have this dependable unit
          Great product works on our ford 350 diesel 7.3 L truck, Ford Ranger 4.0L and multiple other trucks and cars for our family. Came in great looking packaging with 12 volt car charger and USB charging cable. Unit has ports to plug in your phones, iPad and other devices. Light on unit is great idea for night time connections and repairs. Unit charges much faster than older models. Note must have car/truck running to properly fully charge unit. I was disappointed that unit didn't come with a house AC charging system, NOCO website has the house charger U65, 65W USB-C Charger with carrying case. Charges up to five times faster than traditional USB wall or car chargers. Cost about $ 70.00 plus shipping. That is why it didn't give it 5 stars. Very happy to have this dependable unit with me when traveling or on that very cold morning the car or truck will not start.
          by
          • Verified Purchase
          Don't Call A Tow Truck For A Jump Start
          This is a very nice piece of equipment to have. I have used it at least a half dozen times and it performed perfectly. It's small, powerful and easy to use. It's been used on both a cars and SUVs. No more cumbersome bulky jumper cables. Had to call a tow truck once, they carried the same brand (different model) on the truck, so I bought this one.
          by
          • Verified Purchase
          • Recommended
          1 found this review helpful
          by
          • Verified Purchase
          by
          • Verified Purchase
          Been using it since the day I got it very...
          Been using it since the day I got it very happy with it
          by
          • Verified Purchase
          Def needed it for dead battery °20 weather
          Powerful battery jump box
          by
          • Verified Purchase
          Would not take a charge, returned it as not...
          Would not take a charge, returned it as not useable. Went to another brand store and bought a brand that actually works
          by
          • Verified Purchase
          Noco the way to go
          Great worth every Dollar
          by
          • Verified Purchase
          • Recommended
          by
          • Verified Purchase
          Disappointed and dissatisfied on how long the charge lasts, should...
          Disappointed and dissatisfied on how long the charge lasts, should be able to use it more than twice before you have to recharge it. For over 300 battery should last a lot longer
          by
          • Verified Purchase
          Showing 1-10 of 73 reviews