The feel good factor at Charlton continued following a positive end to last season after they picked up an impressive 1-0 victory at Wigan on the opening-day.
If the Addicks want to mount a serious promotion push, they must fix up at home having won just eight of their 23 league games here last term.
Leyton Orient might have started the campaign with a narrow defeat to Bolton but Richie Wellens' side matched the promotion hopefuls and were unfortunate not to come away with at least a point.
The visitors won the last meeting between the sides back in December but have lost their last five trips to the Valley in all competitions.