Roll-up solar panels

cptdondo

Is anyone familiar with the new crop of roll-up solar panels?

A friend of mine asked me about using one in the windshield of his RV for tricke charging the battery while the vehicle is parked. I am assuming that I will need a panel the size of windshield and a small controller.

I am not too concerned about efficiency (it's for trickle charging - say 10 Ah /day tops) but it would need to work in partial shade and also have to be able to get rolled up and stored quite frequently.

For example these guys: http://www.powerfilmsolar.com make a panel that's close, but I know nothing about them.

http://www.powerfilmsolar.com/products/?r42__42_watt_rollable_solar_panel&show=product&productID=276216&productCategoryIDs=6578,6580