Quickly and safely jump start gasoline engines up to 7.5 liters and diesels up to 5 liters with the Noco Boost X GBX55 1750-Amp 12V Jump Starter. No-spark technology and reverse-polarity protection take the worry out of jump-starting. Use the 60-second timer to conserve power—if the engine isn't restarted within that time, the jump starter must be powered off and back on to try again. The GBX55 is also equipped with two USB ports—including a fast-charging 60-watt Type-C—for charging or powering smartphones, tablets, cameras, wearables, etc. 

• An all-new design with extreme jump starting power for powerful engine starts. Rated at 1750-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.
• Equipped with USB-C technology that, combined with power delivery, gives you lightning-fast recharges. Completely recharges in just 1.2-hours, or go from 0% to jump starting in just 5-minutes of charge.
• Charge everything with USB-C Power Delivery. 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.
• 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.