4th Maine Light Artillery Battery was an artillery battery that served in the Union Army during the American Civil War.
[2] The battery was attached to 2nd Division, II Corps, Army of Virginia, to September 1862.
Artillery, 3rd Division, III Corps, Army of the Potomac, to May 1863.
Artillery Brigade, III Corps, to September 1863.
Moved to Washington, D.C., April 1–3, and duty in the defenses of that city until June 28.
Duty at Maryland Heights until October 13, and on the Upper Potomac until December 10.
Moved to Monocacy Junction, then to South Mountain, Md., June 30-July 6.
Camp near Bealton August 1-September 15, and on Culpeper and Warrenton Pike until October 10.
Duty in the trenches before Petersburg at various points from the James River to the Weldon Railroad until April 1865.