With better weather on the way, many of you may be planning some extensive hikes and camping trips. While there are several solar power kits you can bring with you, the truth is that they can often take a long time to produce enough electricity to charge up your smartphone, GPS or LED lamps.
A new portable option is the Blue Freedom, a tiny 7.9 x 2.2-in hydropower kit that is lightweight and can fit in a small backpack. The kit contains a 4.7 inch diameter micro turbine, a 5W generator and 5,000 mAh lithium-polymer internal battery.