... electronics Designed for Charging: Mobile Phones, digital cameras, PDAs, MP3 players, MP4 players (with battery capacity under 1200mAh) Battery - Type: ... charger because it has an internalBATTERY to store power and uses that stored power to CHARGE otherproducts. Hence, ... can charge through miniUSB, such as cameras, MP3 and MP4 players, GPS devices, and numerous othergadgets. Is this device a battery or ...