NOCO Boost X GBX55: 1750A UltraSafe Jump Starter – 12V Lithium Battery Booster Pack, Portable Jump Box, Power Bank & Jumper Cables – for 7.5L Gas and 5.0L Diesel Engines
$174.95
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The GBX55 Boost X is a new class of portable lithium jump starters—engineered for extreme performance and rated at 1,750 amps to start gas engines up to 7.5 liters and diesel engines up to 5.0 liters. Featuring our upgraded UltraSafe 2.0 technology, it offers spark-proof connections and reverse polarity protection, now with enhanced thermal efficiency and power management for even greater safety and battery life. Designed with a high-voltage output system, the GBX55 includes an integrated 60-second timer to conserve energy—delivering up to 9 jump starts per charge with maximum power on every start. Even if completely depleted, it can gain enough power for a jump start in just 5 minutes or fully recharge in only 1.2 hours via USB-C Power Delivery. A 60-watt USB-C port provides both input and output, turning Boost X into a high-performance power bank for fast charging phones, tablets, laptops, and other USB-C devices. A precision-engineered 200-lumen LED flashlight features seven modes, including SOS and strobe, to light up dark workspaces or help in roadside emergencies. The GBX55 jump starter comes complete with heavy-duty jumper clamps, a USB-C charging cable, and a microfiber storage bag, all backed by a 1-year limited warranty and proudly engineered in the USA. Whether you’re looking for a car jump starter, battery jump box, jumper pack, power pack jump starter, or a reliable jump starter battery pack to keep in your glovebox, the GBX55 delivers unmatched performance, trusted durability, and peace of mind—on the road, off the grid, or wherever your next adventure takes you.
X FOR EXTREME — A new class of lithium jump starters. Rated at 1,750 amps for powerful starts on gas 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 9 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.
10 reviews for NOCO Boost X GBX55: 1750A UltraSafe Jump Starter – 12V Lithium Battery Booster Pack, Portable Jump Box, Power Bank & Jumper Cables – for 7.5L Gas and 5.0L Diesel Engines
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$174.95
Yee –
Very please with my purchase
1. Functionality: Works very well for my use. So far, I’ve used it twice on my 2012 Honda Civic when the temp was -10F and my car wouldn’t start. Plug it in, light was chasing, started the engine, boom, works like a charm.2. Jump Capability: Since I’ve only used it twice, and on my 2012 Civic, small car, I don’t really know how well it works with SUVs & Trucks, but I would hope it work. Will update later if I use it to help out friend’s cars.3. Battery Life: Fully charged, used it twice within two months, drained the battery to half or so, if I remembered correctly. So, I would say you could use it to jump start about 4-5 small cars. Not sure about bigger cars.4. Ease of use: VERY VERY easy to use. Self-explanatory. Make sure you read up on it or watch video on YouTube on how it work, especially if the battery is completely dead and the light is not chasing and you have to use the “Override” mode.5. Compactness: VERY VERY compact. I put in my work backpack and bring it with my to work every day in case my car or a friend/coworker’s car broke down due to battery drain or something. Or in the sever cold weather of -10F or below and car doesn’t start.Overall, I would say it’s very useful. Choose your own model and go down if you have to to save money. I bought theNOCO Boost X GBX55 1750A 12V model because I want it to be at least strong enough for my Tundra.
Padremellyrn –
If there were more stars to give it, I would.
Back Ground: I bought this yesterday because I had a car with a battery so dead, not even the warning alarms sounded when I got in. It had been dead for a couple of months. Now, I have a regular jumper which is a Li-Ion battery in a case. I had hooked it up, and let it sit for a minute. No Luck. Tried a long time charger, no luck. Damn, then I recalled my sister who lives in the next town over had a jumper she swore. I called, she came over. At first we did have to recharge her jumper, and it took all of like 5 minutes, and we go out to the car, hook it up. She looks at her watch and says Wait one minute. Then she tells me to go start the car. I am like “You’re joking me?” Nope, so I got in the car, (still no sounds) put the key in, (Still no sounds) and then I turn the key.It was like that battery had never been dead. Instant on, everything as the engine rolled over and started on the first turn of the key. Now that alone is worthy of praise but then I asked her “how long do I need to keep the car running, she “I don’t, I only to jump once in a while.” So the Next morning I come out, and go to the car and guess what. It still started like it was never dead. Two other jumper boxes failed completely to even get the warning bells and dashboard to light up. This one, jumped the car and it runs like it near had a bad battery.Ergo, while I didn’t use my box (as I didn’t one) I used hers, and she has had for a couple of years and it has never failed her. Also a friend of hers, who originally owned it, gave it to her and he bought the one that can Jump Start a dead diesel engine battery. Note: There are more jumpers all over the place, even by this company, so if you have a bigger vehicle, check the numbers and get one for your car or bigger. I have seen Tow Truck Drivers carry a similar one, and it jumped a Chrysler 200 that has been dead for months due the electrical short that kept draining.Not Cheap, but also with that kind reliability, you don’t have to worry about being stuck in the middle of nowwhere, and as bonus it will jump 20 cars on a single full charging itself.
Clint U. –
Excellent
These are excellent. I have several in different sizes and they all work great. I intend to have one in every vehicle I own.
Verified purchase HCS –
Great choice
I waited to review this until I had owned it for a while and had a chance to use it a few times.I have an older 8 cylinder car that I use infrequently that also has an electric issue. The battery drains if it sits. I purchased this charger to keep in that car just in case. When the battery drains, it goes DEAD. i have now used this to jump the big 8 cylinder several times, it works instantly. I can get 3-4 jumps out of a charge.I also take this out on my boat as backup and as a flashlight if needed.The usb-c charging is nice since that is what my phone now uses, so I have multiple charging options.Overall this was more expensive than the models I was looking at but I’m glad that spent the money. This is a great charger.
CTLLC –
Ford V8 5.0 Starts Without Hesitation.
Started my 2011 Ford F150 Lariat Super Crew v8 5.0 without issue.Battery was completely dead. I did not check voltage but no lights on entry and no power locks.Connected my fully charged Noco that has been in the vehicle for 2-3 months. Power on. Counted to 40. Truck started as if it was fully charged.-I have about (12) Noco products. None of them have cause me issue or hesitation.The Noco GB40 took some extra work to start the truck in the past. It works well on my V8 4.6, my v6 3.5 and my v6 3.0. The 5.0 is just a little larger and seemed to tax the GB40.First (2) of these specific units were bought from a refurbished. Both were dead on arrival.Bought a new unit. Brand new. No issues.
Jakub Szumert –
Za pierwszym razem przyszedł nie ten produkt co zamówiłem.Po czasie dostałem odpowiedni i jest ok. Odpalałem już 6.0 v8 gdzie Alu był trup z cumminsem tez sobie dobrze radzi. Urządzenie póki co polecam
Saad –
خفيفة الوزن وجميلة وعندما أستخدمها سوف أحدث هذه الصفحة مرة أخرى بمشية الله.
Theo –
Robuuste en goede kwalteit startbooster.Geloof niet alle slechte verhalen over NOCO, dat zijn uitzonderingen die te veel zijn uitvergroot. NOCO is een van de meest bekende marktleiders in startboosters en maakt zeker geen rommel. Zelfs de Nederlandse ANWB pechhulp gebruikt dit merk!Ik heb met 1x opladen tot 4 keer en zonder enige problemen een 2.0 dieselmotor kunnen starten.Ook een dieselmotor met volledig lege accu kreeg ik gestart met de speciale lege accu functie.Het opladen gaat binnen 15-30 minuten als je een zwaardere USB-C lader met PD en goede USB-C laadkabel met PD gebruikt. (PD USB, oftewel USB Power Delivery (PD), is een universele snellaadstandaard voor USB-C-poorten die apparaten zoals smartphones en laptops sneller en veiliger kan opladen door de benodigde hoeveelheid stroom dynamisch aan te passen.)
José R. –
Tengo vehículo con motor grande y lo encendió correctamente
Cliente Amazon –
ottimo prodotto ottimo venditore