Charleroi rallied from a set down Monday night to take the lead in the non-section match, but visiting Ringgold responded by winning the last two sets for a hard-fought 3-2 victory.
Ringgold won the opening set, 25-22, but the home squad gained control of the match with set wins of 25-23 and 25-20.
The visitors tied the match with a 25-22 win in the fourth set, and then secured the road victory by taking the final set, 15-9.
Kaiden Bubush had 20 assists and five aces for Ringgold. Alexis Sage had a strong defensive effort with 32 digs. Alyssa Pagliei finished with 11 kills.