Parke's attackers moved forward into a mist at about 4:00 a.m. Thomas P. Beals, with three companies of the 31st Maine Infantry Regiment, led the attack of Potter's division on Battery No. 28 after the pioneers chopped through the chevaux-de-frise. The ditch in front of the battery was filled with water so after some Union attackers fell in, others moved around the west side of the battery and captured its small garrison. Taking artillery fire from the secondary Confederate line, the Union troops then moved along the main line toward Fort Mahone. Hartranft's division had similar success taking Battery No. 27. Harriman's three regiments from Willcox's division took five guns and 68 prisoners at Battery No. 25.