Recent content by johnkim

I think they should develop a better technology to gather more sunlight:D Any more thoughs?

yeah they are expensive but assuming they are under $100

I've seen several Solar energy backpack which can charge up your MP3,cellphone,and iPOD by using solar power and internal battery. Does anyone have experience with those? Would you buy one if the price is more affordable? Let say under $100 since most of the solar backpacks on the market are...