How many years away are solar powered cell phones and lap tops?
Answer:
i read an article in a science magazine recently and there was a group that claimed that it had worked out how to improve the efficiency of solar panels such that they would become a more viable option for laptops.
the batteries available currently are quite sufficient in terms of capacity and time required for charging, one issue i can see coming up is that the batteries don't like heat but a solar panel is bound to get hot...
in terms of years away, i would say about 10 years until such an option becomes reasonable in terms of economics but that's pure speculation.
if you're really keen you could make a custom setup. i used to work in an electronics store and most of the required parts are readily available.
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