Peripherals company Nyko has a new accessory for thethat gives the portable a nice boost to play time. The are clip-on gaming grips for the PSP with a built-in lithium-ion battery. The grips include handles that stick out under the bottom edge of the PSP, giving the system more of a -controller feel. The battery hooks up directly to the PSP and charges through the PSP's AC adapter. Nyko claims that the extra battery gives an additional five hours of PSP gameplay. Between the more comfortable feel and the longer-lasting battery, the Nyko Charger Grips should let gamers play for longer periods of time without drained batteries or sore wrists.