It was active at Chaffin's Bluff and Johnson's Farm in October. Following this it was ordered to City Point, where it exchanged its James Rifles for 12-pound Napoleons. The unit was comparatively inactive during the winter of 1864–1865. But on April 3, 1865, the Confederates abandoned their defences and the battery entered Richmond with the XXV Corps, where they received news of Lee's surrender. The unit continued to serve in the vicinity of Richmond until June 11, when it was mustered out at Manchester, Richmond. It started for home the following day and reached New Haven on June 14. The battery was the first of the veteran troops to return to Connecticut. Having been in service three years and eight months, it participated in about twenty engagements.