Solar Powered Lil' Piggy Power Bank by Neon Green. Rechargeable back-up battery collects and stores energy from the sun for future uses. Features an 800mA lithium battery that charges when left in the sun’s direct rays or when connected to the USB mini port of your computer (connecting cable not included). Connects directly into the iPhone and iPod, and using a mini USB connects to Blackberry, most mobile phones and MP3 players. Fully charged when left in the sun for 14-18 hours or 2-3 hours by USB power.