Since the battery in the tablet is not really insanely large, it seems like a good idea to make some tablet cover to compensate for this.

Ingredients:
- full size solar panel (425ma)
- 20.000mah battery
- full size & micro usb out
- V5 step-up
- solar energy harvesting circuit
- switch
- casing

Hope I can get proto/mockup/3Dcadfiles of tablet to jumpstart this project and be ready when the tablet comes out.

some initial experiments


ps. Batteries are expensive.