It's very simple on what you do for the controllers, SHMUP:
Get 1 charge kit (1 cable + battery) and 1 rechargable battery
When your not playing, alternate controllers that get charged. It takes only a few hours (3-4) to get a 'full charge'.
Trust me, the X360 wireless controllers ARE NOT BATTERY HOGS. They last no less than 30 straight hours of playing before 1 charge. I've gotten 50 hours before at my max.....Plenty of time to get your game on w/o a charge.
Back from the dead, I'm afraid.