The Future of Nokia's Solar-Powered Phone Isn't so Bright [VIDEO]

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Nokia set out to see if a feature phone could be sufficiently powered by solar energy alone. The findings weren't promising.

After testing its solar-powered C1-02 phone in five different locations, Nokia concluded its device was hard to keep in direct sunlight and limited talk time.

"The most substantial challenge is the limited size of a phone’s back cover, which restricts the extent to which the battery can be charged," Nokia said in a blog post. "What’s more, to ensure mobility, it is essential that the phone’s weather protection doesn’t cover the solar charging panel."