hand-crank-usb-charger_ZwGjI_15699
We’ve seen many hand-powered charging devices to charge our cellphones, especially when we find ourselves with absolutely no power source nearby. Here is one more very affordable hand-crank charging device that relies totally on your muscle power to get up to juice. Once you get some charge into this device that has a battery to store power, you can plug you mobile phone’s USB charger and juice up your mobile phone’s battery. The only downside is that you need a mobile phone that has USB connectivity. This handy contraption can even be used on other rechargeable devices that have USB connectivity and is very portable due to it’s small size. Lest we forget, this charger even has a little torchlight built into it. Though not a very new concept, it is definitely a very handy device. You can buy the Hand-Crank USB Power Charger for an affordable $40.
Via: dvice