EZOPower USB Solar External Rechargeable Backup Battery - 3000mAh (1A) for LG, Nokia, Sanyo, HTC, Google, T-mobile, Motorola, Samsung, Android, iPhone, Blackberry and Windows Smartphones, E-reader, MP3/4 Players and More Brand New EZOPower Solar Powered External Backup Battery. Recharged by solar panel under sunlight. Universal, convenient, portable, and compact external rechargable back-up battery Compatible with most portable devices (Mobile Phones, Music Players, Portable Gaming Devices, Digital Readers, etc.) Charges via included USB cable + Includes interchangable charging tips such as mini USB, micro USB 4 Blue LED Battery Capacity Indicators with On/Off Power Button