In reserve at Boston and Charleston from 1 December 1919, Cowell put to sea for a training period out of Newport, Rhode Island, with a reserve organization from April through October 1921, returning to Charleston. On 27 June 1922, she was decommissioned at Philadelphia Navy Yard, where she lay until recommissioned 17 June 1940 for patrol duty in the Atlantic. She cruised along the United States East Coast on this duty until 18 September 1940 when she arrived at Halifax, Nova Scotia, there to be decommissioned 23 September 1940 and transferred to the Royal Navy the same day in the land bases for destroyers exchange.
As HMS Brighton
Commissioned as HMS Brighton, the destroyer served with minelayers in the Denmark Strait and off the Faroe Islands. On 27 February 1941, she rescued from the sea 19 survivors of torpedoed SS Baltisan. Brighton was modified for trade convoy escort service by removal of three of the original 4"/50 caliber guns and one of the triple torpedo tube mounts to reduce topside weight for additional depth charge stowage and installation of Hedgehog.[1] After refit, she served during 1943 and 1944 as target ship for naval aircraft training in the Western Approaches and at Rosyth, Scotland.
As Zharky
On 16 July 1944 she was transferred to Russia, in whose Navy she served as Zharky (rus. Жаркий, "Torrid")[note 2] until returned to the British at Rosyth 28 February 1949. She was sold for scrap on 5 April 1949.