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Schematic illustration of a supercapacitor[1]A diagram that shows a hierarchical classification of supercapacitors and capacitors of related types
Supercapacitors are used in applications requiring many rapid charge/discharge cycles, rather than long-term compact energy storage: in automobiles, buses, trains, cranes and elevators, where they are used for regenerative braking, short-term energy storage, or burst-mode power delivery.[4] Smaller units are used as power backup for static random-access memory (SRAM).