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Charlton were twice pegged back by Brighton in the Championship on Saturday.
The Addicks remain unbeaten after five games and now sit sixth in the table.
Summer signing Igor Vetokele put Charlton ahead inside four minutes when he collected Yoni Buyens through ball and beat keeper David Stockdale.
Lewis Dunk headed in a Danny Holla corner to make it 1-1 just before the hour but Vetokele claimed his second of the afternoon with 16 minutes remaining to take his season's tally to five.
However, Dunk converted Kazenga Lua Lua's pass to claim an equaliser in the third minute of stoppage time and deny Rob Peeters' men maximum points.
Charlton: Henderson, Wiggins, Solly, Bikey, Ben Haim, Jackson, Cousins (Wilson 61mins), Gudmundsson (Fox 80mins), Buyens, Tucudean (Church 46mins), Vetokele. Subs not used: Morrison, Moussa, Harriott, Pope.
Attendance: 26,189.