... voltage: 5V Output current: 2A(max) Tourist product External battery pack for PSP ,ipod, mp3, mp4, as well ... capacity &super long run time2.Compatible &Multifunction3.Popular,portable&convenient4.Quick charge,long cycle life &no memory ... 2A(max)3.AC charger: 12V,0.5A4.Battery protection: over discharge/over charge/excess current/short ... when short circuit Tourist product External battery pack for PSP