The win put Charleston at 4-1 in the young season, while UConn fell to 2-3.
The Cougars loaded the bases with none out in the third inning when freshman Devon Reed laid down a bunt on the third base line and junior Cody Martin beat the throw to third. Junior Bradley Goodson singled in a run to score Martin, and a wild pitch on the next at bat scored catcher Jimmy Holton. Senior Marty Gantt roped a triple down the right field line to clear the bases, and sophomore Daniel Aldrich scored Gantt with a hard hit ball to first base.
Junior Tyler Jackson hit a solo home run, his first of the season, in the third inning to give College of Charleston an 8-1 lead.
The Huskies threatened in the top of the seventh inning by loading the bases after a Cougar error. After a single by Joe Pavone scored a run, Tom Verdi hit a grand slam to left to pull the score to 10-6.
Senior Kyle Owings was able to finish the inning and pitch a scoreless eighth frame to set up classmate David Peterson who came in a non-save situation and put the Huskies down in order in the ninth inning.
Powell went five innings, allowing just one run and four hits while striking out five en route to his second win in as many starts. Senior Ryan West made his first appearance of the season, allowing just two hits and three runs, all unearned.
Connecticut starter Pat Butler (0-1) lasted just one inning and a third, allowing seven runs, six earned and six hits.
Goodson led the Cougars with a 4-for-5 performance including a double as he scored three runs and made one RBI. Senior Rob Harding made three RBIs, and four assists in the field, including starting a double play. Reed scored two runs in his first career start as a Cougar.
College of Charleston will conclude the Cougar Invitational with a 3 p.m. game on Sunday, Feb. 26 against Xavier.