Supercapacitors, also called ultracapacitors, similar to normal capacitors and with the same size, but with an energy storage capacity up to 10,000 times higher. With a storage potential of up to 3,000 farads (compared to microfarads stored by a normal capacitor) and high performance, with a return of 98% of the load. They store a lot of energy in relation to their weight (4Wh/kg), although not as much as a battery. They have no memory effect and have a large capacity for fast loading and unloading (5kW/kg).