Battery I took part in the Chattanooga campaign on 23–27 November 1863, including fighting at Tunnel Hill on 24–25 November which was part of the Battle of Missionary Ridge. During the battle, the battery was led by Lieutenant Josiah H. Burton and reported to the 4th Division under Hugh Boyle Ewing and XV Corps under Francis Preston Blair Jr. Burton was temporarily assigned from Battery "F", 1st Illinois Light Artillery Regiment. The unit participated in the pursuit to Graysville, Georgia on 26–27 November. Battery I marched to the relief of Knoxville, Tennessee from 28 November–9 December. Afterward, the battery guarded Scottsboro, Alabama until April 1864. At that time, the unit moved to Nashville, Tennessee where it formed part of the artillery reserve of the city's garrison until November 1864.