The problem with most portable battery-based chargers is that you still need to plug them into a wall socket to gain a charge. While some inventors have turned to solar, or even wind power, for off-the-grid power sources, solar and wind power take time and require Mother Nature to provide sun or wind. Enter Kraftwerk, a fuel-based hand-held portable generator that has launched as a Kickstarter project. Kraftwerk is essentially a tiny power plant you can hold in your hand to produce electricity. Its USB plugin charges hand-held devices, such as smartphones or cameras.
from TechNewsWorld http://ift.tt/1KcxLnS
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