West Brom win: Video, report and pictures
Saido Berahino and Brown Ideye were on target as West Brom collected their first victory of pre-season at Blackbaud Stadium in South Carolina.
Match highlights courtesy of Charleston Battery
Ideye netted the 82nd-minute winner after Charleston's Navion Boyd had cancelled out Berahino's 42nd-minute opener.
It was a useful workout for Albion against the USL outfit in front of a noisy crowd in intense heat and humidity.
Albion went close in the opening moments when a cross from the right by Craig Gardner found Berahino, whose goal-bound header was cleared off the line by Shawn Ferguson.
And, as the Baggies dominated the opening few minutes, Craig Dawson sent a free header over the crossbar from six yards from a cross by James McClean.
Berahino burst clear moments later but was halted by a fine challenge from Taylor Muellar before Maikel Chang cleared the bar after skipping through the Baggies defence.
Albion took the lead on 42 minutes when Berahino collected a forward ball and played a one-two with Victor Anichebe before finishing crisply.
McClean fired just over for Albion but Battery drew level on 57 minutes when Boyd collected a crossfield ball and beat Boaz Myhill from the edge of the area.
Myhill produced an excellent save to deny Heviel Cordoves after a cross by Austin Savage.
The Baggies grabbed the winner with eight minutes to go when Ideye arrived unmarked at the far post to head home a free-kick by Craig Gardner.