Check out the freeplayenergy Freecharge Weza, a power generator that uses a foot pedal to generate electricity. It’s a bit spendy at ~$300 but if you paired this with a ~$40 power inverter you’re basically able to power any device you need to through human power, from a car battery to your cell phone. This thing would be awesome on our annual camping trips and I already have an inverter. Their site doesn’t give you its weight, but with a lead acid battery in it I’m sure it’s too heavy for backpacking. It would be fine for our boat camping trips though.

[via futurismic]