Power Supply
Power &Play comes with a UL-licensed adapter to convert 110-volt household electricity into the lower voltage required to recharge PS3's controllers.
Number of Controllers
The charging station is capable of recharging two controllers at once, plus two more controllers as long as owners supply two USB cables (sold separately).
Charging Time
Power &Play chargers can replenish the batteries of four standard PS3 controllers simultaneously (with two USB cables) in about two and a half hours.