Extend battery life with finger power

[…] a helpful solution for a tricky situation. The situation being: you running out of juice on your mobile phone. So what do you do? Remove the battery from the back of the phone; give it a few good turns around your index finger and its gathered enough power to last you a conversation or a safe trip to your charger and electric point.

(via Cheers To Finger Power! – yankodesign.com)

Clever.

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