... 2000mAh 5000mAh portable battery charger for iPhone 4 4S,iPod,PSP,GPS,MP4...Number:MA8323Main functionAdvanced aluminum materials,feel comfortable,wear ... polymer core can be provided for the 7-8 block of ordinary saturated lithium batteryDurable,charge and discharge cycle ≥ 500 ... with USB charging,such as mobile phone,iPhone 4G 4S,PSP,IPOD,MP3,MP4,GPS,Bluetooth,digital cameras and so on ...