Amazon and Walmart currently have this at $296
About this item
X for Extreme - An all-new design with extreme jump starting power for powerful engines starts. Rated at 4250-amps, this portable lithium car battery jump starter releases maximum energy at every start. This isn't an upgrade. It's a whole new series - the Extreme Series..Operating temperature : -4°F to +122°F (-20°C to +50°C)
Turbo Chargeable - Boost X is equipped with USB-C technology that, combined with power delivery, gives you lightning-fast recharges. Completely recharges in just 2.7-hours, or go from 0% to jump starting in just 5-minutes of charge.
Charge Everything - With USB-C Power Delivery, you have the power to charge almost everything. Its internal power bank provides 60-watts of power - both in and out - to effortlessly power your favorite USB-C devices, like phones, tablets, laptops, wearables, and more.
UltraSafe 2.0 - We took our UltraSafe technology and made it better. It's still our simple, mistake-free design featuring spark-proof technology and reverse polarity protection, but with enhanced thermal efficiency and power management to provide better performance and longer battery life.
Maximum Versatility - Boost X is one of the most versatile lithium jump starters ever. Jump start all vehicle types, including cars, motorcycles, trucks, ATVs, boats, RVs, vans, SUVs, tractors, and more for up to 10.0-liter gasoline and 8.0-liter diesel engines.
Here's What You Get With Boost X - GBX155 UltraSafe Portable Lithium Car Battery Booster Jump Starter Pack and Power Bank with 60W USB-C Power Delivery, Heavy-Duty Jumper Cable Clamps, USB-C Charging Cable, 12V USB-C Fast Charger, Microfiber Storage Bag, 1-Year Warranty, and Designed in the USA.
Amazon:
https://www.amazon.com/NOCO-GBX15...121&sr=8-5
Walmart:
https://www.walmart.com/ip/NOCO-B...om=/search
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I've used a $30 jump starter from TEMU and it works just as well as my $100 NOCO. It says rated for up to 2.0L engines but I've started a 4.7L V8 without any issues.
I'd buy a lower model and test it before spending too much, unless cost isn't a concern, in which case, have at it hoss. That said, I've also started questioning NOCO quality the past couple years. I had the battery on a slightly older but rarely used jump starter bloat, and a brand new Genius charger malfunction after the 2nd use : / Yes, this is anecdotal, but worth considering.
I personally got one for my dad, gb70. it worked great for a few years. I can't remember exactly when I bought it but just recently it started to give him problems. it shows that it is fully charged but it will not turn on when it's time to jump a vehicle.
also, I purchased a gbx155 for a family member during Black Friday on amazon in 2022. Luckily he told me that his did not want to charge at all a few days before his warranty expired. I immediately did a warranty claim and noco sent his replacement. Overall a good experience but I guess he got lucky that it died a few days before the end of the 1 year warranty.
I started searching on the gbx155 issue and apparently it's a known issue.
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