Try making one yourself with a little help from a 9V battery and a few . ... DIY 9V Battery-Powered USB Charger. November 4, 2009 Comments. Sure you could go buy a USB charger ...

DIY 9V Battery USB Charger 7:29 am November 4, 2009 By Julian Horsey If you’re looking for a neat DIY project this weekend, then this DIY 9V Battery USB charger could be a fun gadget to create.

Luckily, there is a “hurricane hack” that shows a way to charge your smartphone via a 9-volt battery. In the video below, a smartphone, spring-loaded pen, USB cable, 9V battery and car charger ...