Powerful AA Battery to USB Device Charger
Need a highly portable USB power source that can be replenished with readily available, common batteries? Â Look no further my friends 
. Â Inspired by the original Minty Boost project, this modder managed to shove 4-AA batteries into an Altoids tin to charge any USB powered device. Â So if you don’t have your laptop or PC nearby, simply pull out your Altiods tin and plug in your device!
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