Producer's note: Everyone's had their smartphone run out of juice right at the most inopportune moment. But now, through Kickstarter, a company called Siva Cycle has created a new device to make sure this never happens to you again. It's cheap. It's practical. And it's remarkably low-tech. We spoke to them via Skype, and they showed us how it all works.
Siva Cycle is based in San Francisco . Through a Kickstarter campaign, Siva Cycle raised $126,000 -- much more than their goal .