0001794621 2023-08-21 2023-08-21 0001794621 qngyq:CommonStock00001ParValuePerShare2Member 2023-08-21 2023-08-21 0001794621 qngyq:WarrantsEachWholeWarrantExercisableForOneShareOfCommonStockAtAnExercisePriceOf23000PerShareMember 2023-08-21 2023-08-21 NONE NONE false 0001794621 8-K 2023-08-21 Quanergy Systems, Inc. DE 001-39222 88-0535845 c/o SierraConstellation Partners, LLC 355 S. Grand Avenue Suite 1450 Los Angeles CA 90071 408 245-9500 false false false false Common Stock, $0.0001 par value per share QNGYQ Warrants, each whole warrant exercisable for one share of Common Stock at an exercise price of $230.00 per share QNGWQ true false