Features: 3V500F Supercapacitor boasts an high 500F capacity and 2.7V operating electromotive force, delivering 1000A+ current discharge for automotive cold starts, systems. Engineered with grade durability, this cylindrical supercapacitor features a leak proof metal casing (62x35mm), 500,000+ cycles, and extreme temperature resistance ( 40°C to +65°C) for stability in harsh environments. Ideal for automotive enthusiasts, off road vehicle owners, and electronics engineers requiring compact energy storage solution for engine bays, power systems, or industrial equipment upgrades. Perfectly supports truck cold starts in sub 0 conditions, stabilizes car sound electromotive force spikes, and buffers energy for solar setups or robotics projects demanding rapid /discharge cycles. Achieve full in minutes and extend battery life by 3X through parallel configurations (e.g., 6 unit 16V capacitor ), featuring lightweight 200g design for space constrained installations under hoods or in power stations. Specifications: Capacity: 3V500F Size: Approx. as picture shown 62x35MM/2.44×1.37in Effect: 30% more distance, the is strong, and can also be used for solar energy Package Includes: 3V500F Farara capacitorx1 note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.