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The Noco Boost X GBX75 is a 2500-amp lithium jump starter built for large engines: up to 8.5L gasoline and 6.5L diesel, covering cars, trucks, RVs, boats and tractors. Its standout is USB-C Power Delivery at 60W in and out, so it recharges fully in about 1.8 hours and can top up a laptop or phone as a power bank. UltraSafe 2.0 adds spark-proof clamps and reverse polarity protection with better thermal management. It sits above the smaller GB40 and GB50 in jump power and charging speed, and rivals like the NOCO GB150 trade the fast USB-C charging for more cranking amps.
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Owners rate the GBX75 highly for starting big diesel trucks and RVs on the first try and for the fast USB-C recharge. Complaints center on its size and weight and on the short clamp leads.
The Noco Boost X GBX75 is a portable 12V lithium jump starter rated at 2500 amps. It is part of Noco's Extreme Series and is built to start larger engines, up to 8.5-liter gasoline and 6.5-liter diesel. It can jump start cars, motorcycles, trucks, ATVs, boats, RVs, vans, SUVs and tractors.
UltraSafe 2.0 design is spark-proof and has reverse polarity protection. It also has improved thermal efficiency and power management for better performance and longer battery life.
The unit also works as a power bank. Its USB-C port supports Power Delivery at 60 watts in and out, so it can charge phones, tablets, laptops and wearables. The same port recharges the jump starter. A full recharge takes 1.8 hours, and 5 minutes of charging is enough to go from 0% to jump starting.
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