Andre Bikey's header has been enough to give the home side the lead in the Championship, and the Addicks have had the better of the openings so far.
George Tucudean had a couple of decent early chances for the Addicks but was unable to make the most of both inside the first 10 minutes.
Lee Evans was next to try his luck with an ambitious effort from range, but his 30-yard attempt flew just wide, shortly before Bikey gave the Addicks the lead.
The powerful defender rose highest from Jordan Cousins's corner to head home on 26 minutes, and they nearly doubled the lead almost immediately through Tucudean.
However, the forward's effort could only find the wrong side of the post.