12V 4250 Amp UltraSafe Lithium Ion Jump Starter
X for Extreme - An all-new design with extreme jump starting power for fast and powerful engines starts. Introducing a new kind of jump starting experience, featuring our latest PX Lithium Technology that delivers incredible power, ultra-fast charging, and unmatched versatility. This isn't an upgrade. It's a whole new series - BOOST X with more starting power. The new Boost X combines tremendous power with unmatched ease of use, versatility, and maximum conductivity. Turbo Chargeable - Boost X is equipped with USB-C technology that, combined with power delivery, gives you lightning-fast recharges. Completely recharges in 2.7 hours, or go from 0% to jump starting in just 5-minutes of charge. Power 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 our 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. Compatible - Boost X is one of the most versatile jump starters ever with 4250-amps of starting power for up to 10.0-liter gas and 8.0-liter diesel engines. Here's What You Get With Boost X - GBX155 UltraSafe Portable Lithium Car Battery Booster Jump Starter Pack with 60W USB-C Power Delivery, Heavy-Duty Jumper Cable Clamps, USB-C Charging Cable, Microfiber Storage Bag, 1-Year Warranty, and Designed in the USA.

• Compact, yet powerful lithium jump starter rated at 4,250 Amps
• An ultra-safe and mistake-proof design with spark-proof technology and reverse polarity protection, which allow it to safely connect to any battery
• An ultra-bright 500 lumen LED flashlight with 7 light modes, including SOS and Emergency Strobe
• Recharge your personal devices on the go, like smartphones, tablets, e-watches and more.
• Designed for gas engines up to 10.0 Liters and diesel engines up to 8.0 Liters for cars, boats, lawn mowers and more