In just 2.5 hours, the Energizer Power&Play Charging System for PS3 charges up to 4 controllers simultaneously. Charge 2 controllers on the station and 2 more with USB cables (sold separately). The charge base offers a sleek and unique design that is impressive and functional. The station let's you know when it's charging via the connection by appearing in red light (charging) and green (fully charged). It is powered the by the included UL-approved AC power cord.