Hummer Multifunctional Car Battery Jump Starter & Power Bank, 4000A - H4K

4th-Generation High-Power Jump Starter: Delivers massive 4000A peak current to jump-start dead 12V batteries in seconds, perfect for cars, trucks, motorcycles, boats, ATVs, jet skis, and lawn equipment. Engineered for Modern Vehicles: Specially designed to safely boost engines with EV, Turbo, Hybrid, and Start-Stop Systems. Advanced Lithium-Ion Battery System: 20,000mAh capacity with over 1000+ life cycles and up to 9–12 months standby time—reliable performance when you need it most. Fast USB-C PD30W Power Bank: Bi-directional USB-C delivers rapid charging for smartphones, tablets, and even USB-C MacBooks; charge an iPhone 0–50% in just 30 minutes. Quick Recharge Capability: Fully recharges in about 3 hours using a USB-C PD charger, so it's ready for your next adventure fast. Heavy-Duty Construction: High-performance clamps (2000A) and durable build designed for demanding automotive use. All-Weather Operation: Performs reliably from -4°F to 140°F (-20°C to 60°C) for year-round dependability.