The young Bluebirds' only goal of the game came from Gruff Evans who powered a right-footed strike into the near top corner of the Plymouth Argyle net.
The Bluebirds and Addicks share a manager etched into the history of the two clubs, having won promotion during his time in both the Welsh and English capitals.
"I think our performances have been really good in games. We're not silly, we all know that we need to get a win to match those performances. I feel like the way we're playing, a win is just around the corner."
"I'm not naive; I know that we have to win games, and do it quickly. The following we have at every single game is incredible. I've never felt more motivated to give them a team that they feel proud to follow."