... , built-in green, safe rechargeable lithium polymer battery, charging your mobile phone, digital camera, PDA, PSP, mp4, MP3, IPOD and other digital ... of the product:about 4 hoursCycle life: >500 times Applications: mobile phone, as Motorola, Samsung, Sony Ericsson, Siemens, LG, MP3/MP4, ... not use sharp objects scratch the surface of the product casing. To charge this product, please use the DC5.0V ± ...