PDP Energizer Xbox 360 Power & Play Controller Charger with Rechargeable Battery Pack for Two Wireless Controllers Charging Station, 037-011-NA Charge 2 Xbox 360 wireless controllers simultaneously and twice as fast Charging station comes with an AC adapter and 2 Energizer Rechargeable Battery Packs for up to 35 hours of playtime Replace controller batteries with Energizer ones and then simply dock controllers in charging station- green light indicates when they are completely charged Attractive design coordinates with Xbox 360's sleek console design of matte and glossy black chrome details Officially licensed by Energizer and Microsoft for Xbox 360