24000mAh & 4000A Peak Power – Equipped with a powerful 24000mAh battery, the RJ4000 jump starter quickly revives 12V vehicles including cars, trucks, boats, and more, supporting gasoline and diesel engines up to 10 liters. HD LCD Display – The clear LCD screen shows real-time status indicators, making it easy to monitor battery level and operational status at a glance. 65W USB-C Fast Charging – Features a 65W USB-C in/out port and a QC3.0 USB-A port. Fully recharges in just 1.3 hours and powers devices such as phones, laptops, and tablets—perfect for travel and camping. One-Touch Boost & Multi-Mode LED Light – Start vehicles in low-voltage conditions with one touch. Built-in LED flashlight includes SOS, strobe, and steady light modes for emergencies. Durable & Certified Safe – Operates from -4°F to 140°F, IP64 water-resistant and dustproof. Certified to FCC, CE, ROHS, and UN38.3 safety standards. Includes 12-month warranty and responsive customer support.