* Cybertronian Age: Transformers age differently than humans. They can live for millennia, and their age isn't always a direct correlation to human years.
* Energon's Time: The Energon series takes place after the events of Transformers Armada. The time frame between the two series isn't explicitly stated.
* Character Development: Kicker and Misha were young teenagers in Armada, and they don't seem to have aged significantly in Energon.
Therefore, assuming they are still around the same age in Energon, we can estimate that Kicker and Misha would be roughly 14-16 years old in human years.
However, remember that this is purely speculative. There's no official information within the show itself to confirm their exact human ages.