The battery was reorganized during December 1863 to serve a new term of three years. Reenlisted members of the 11th Massachusetts Battery formed the core of the new iteration. They were joined by new recruits to fill out the ranks. Capt. Edward Jones again served as commanding officer. The members of the battery were mustered in on January 2, 1864, trained at Camp Meigs, and departed Massachusetts on February 5. Reaching Washington, the battery was attached to the Second Division (commanded by Major General Robert B. Potter) of the IX Corps, assigned to the Army of the Potomac. The battery took part in the major battles of the Overland Campaign, though they were not heavily engaged until moved to the front lines on June 19 during the start of the Siege of Petersburg. On August 21 and 22, the battery took part in the Battle of Weldon Railroad while temporarily attached to the II Corps. The battery was in action at various points on the siege line at Petersburg during the fall and winter. On March 25, 1865, the battery played an important role during the Battle of Fort Stedman. As Confederate troops overtook Fort Stedman and temporarily broke through Union siege lines, the 11th Massachusetts Battery, posted in nearby Fort Friend, rendered key service in pushing back the assault. When the Confederates abandoned Petersburg and retreated towards Appomattox Court House, the 11th Massachusetts Battery joined other elements of the Army of the Potomac in pursuit. They were present for the surrender at Appomattox and were detailed with other artillery units to take charge of surrendered Confederate cannons.