I definitely also need my recharge time, but as a semi-serious gamer, I can tell you straight away that once you turn on the game, it's really really really really hard to stop again. If he needs 20 minutes or even an hour to recharge before picking up housework, I highly recommend he find something other than gaming for that, and only pick up the game when he knows he can safely do it for awhile, or til he goes to bed, or whatever.
This is coming from the girl who constantly tries to turn on a game for just a half hour, only to find herself 6 hours later still engrossed.
Since it's xbox, it's probably not a MMORPG like WoW, which makes things better than they would otherwise be. I will never ever play that game, because I'm bad enough with offline console RPGs.