Talk is not cheap in the mountains of Nepal. Getting a mobile phone charged can cost $5 in areas where there is no electricity and backpackers have to rely on diesel generators used by locals to power up.
John Hingley had a solution stuffed in his rucksack: a thin and lightweight portable solar panel that unfolded and could generate enough energy to power his phone, camera and computer.
From our very good friends over at theguardian. com
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