X for Extreme - An all-new design with extreme jump starting power for powerful engines 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
Turbo Chargeable - Boost X is 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, 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 7.5-liter gasoline and 5.0-liter diesel engines
• Here's What You Get With Boost X
  • GBX55 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,
  • Microfiber Storage Bag,
  • 1-Year Warranty.