The Addicks need one win from their final two matches against Preston and Hartlepool to bring up their century.
Powell will therefore resist the tempation to throw in some of the club's youngsters as a successful campaign comes to an end.
He said: "My squad's big and we've got some good youngsters, but after the season we have had it's not the moment to play them.
"I want to get to 100 points and it's a moment for all the players to be involved at Preston and the home game against Hartlepool.
"I will try to get all the players a bit of time out there if I can, because they've all played their part and it's been magnificent. It will be a time for those players to go out there and really enjoy the moment."