PHB2 FAQ said:6. Can a Rageblood Vigor Barbarian use his Swift Charge power after a charge attack?
Yes you can, Swift Charge is a free action so it can be done even if a charge attack has ended your turn.
Rageblood Barbarian begins his turn slowed (save ends), charges an enemy, attacks, kills him. His turn ends. He makes saving throw. Succeeds. Now he can use swift charge with his regular speed, correct?