In October 1944, it deployed to France equipped with towed 3" anti-tank guns, and was assigned to support the Seventh Army, then fighting in Alsace.

Here it supported the 100th Division as it pushed steadily eastwards towards Germany, and on 8–9 January 1945 was employed to repel a SS panzergrenadier attack during Operation Nordwind, the only time the unit is recorded as having destroyed an enemy tank.

After conversion to M18 Hellcat self-propelled tank destroyers, the battalion moved into Germany, helping force a bridgehead over the Neckar River at the Battle of Heilbronn.

[5] On completing unit training at Fort Hood in August, the 824th was transferred to Louisiana for field maneuvers, returning to Camp Bowie in January 1944.

The following day, a gun crew of the same company fired the battalion's first shots in anger, destroying a machine-gun position.

[10] The new organisation was smaller than the old - fewer men were needed for vehicle crews - and so even after the creation of the new Reconnaissance Company on 27 March, the 824th finished the month with a complement of 646 all ranks, down from 750.

[11] Following the refit, it crossed the Rhine on 1 April,[12] and was almost immediately returned to combat to support the 100th Division's attack on Heilbronn, an attempt to force a bridgehead across the Neckar River.

On 25 April, the 824th was reassigned to the 103rd Division, which was moving eastwards through Bavaria towards Austria; it finished the war, on VE Day, outside Innsbruck.

Three weeks later, on 11 September, the battalion was formally demobilized at Fort Jackson, South Carolina, and ceased to exist.