iSol Plus is an ideal solar solution for all of your portable devices. Buy iSol Plus and say goodbye to dead cell phone, iPod, PDA or PSP batteries. You can charge your gadgets wherever you are under the sun (10-20 hours). And if it rains, you can charge it with your laptop via a USB cable (2-4 hours).

Source: Silicon Solar - iSol Plus - $ 43.95

Specifications:
- Solar Panel: 5.5V 100mA
- Rechargeable Lithium Battery: 3.7V
- Dimensions: 4.5 in x 2.5 in x .6 in
- USB charging cable: 5V 500mA
- DC Outputs: 5.5V 500mA / 7.5V 350mA / 9.5V 300mA

Features:
- Charge using the Sun or USB connector
- Major brand mobile phone adaptors
- Comes with suction cups
- Charging and discharging indicators:
Charging in the sun
Charging with USB cable
Charging portable device