NOCO Boost X GBX155 Jump Starter Review
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Looking for a powerful jump starter that can handle anything from daily drivers to big engines without breaking a sweat?
We recently checked out the NOCO Boost X GBX155, and this thing feels like it’s built for serious situations. It’s compact enough to keep in your car, but the performance is on another level.
With a massive 4,250-amp rating, it’s designed to jump-start gas engines up to 10.0L and diesel engines up to 8.0L. In real-world use, that kind of power means you’re not second-guessing whether it’ll work—it just does, even on larger vehicles.
Safety is another big win here. The UltraSafe 2.0 system includes spark-proof and reverse polarity protection, so you don’t have to stress about making a mistake when connecting it. Everything feels controlled and reliable, which is exactly what you want in an emergency.
One feature we really liked is how fast it recharges. With USB-C Power Delivery, it can fully charge in around 2.7 hours, and even a quick 5-minute charge can give you enough power for a jump start. That’s incredibly useful if you’re in a hurry.
It’s not just a jump starter either. The 60W USB-C output lets you charge phones, tablets, or even laptops, so it doubles as a solid power bank. On top of that, the built-in 500-lumen LED flashlight with multiple modes (including SOS) makes it handy for nighttime emergencies.
Overall, the NOCO Boost X GBX155 is a powerful, well-built tool that goes beyond basic jump starters. If you want something reliable for emergencies—especially for larger engines—this one is absolutely worth having in your car.