Ok so I have the elcheapo vv USB pass through with the ego threading from fasttech. What I am wanting to do is use something like http://www.fasttech.com/products/0/...67g-3a-diy-single-usb-mobile-power-supply-pcb and a few batteries encased and readily charged as either a charger for my 900mAh ego or for the USB pass through in a pinch. Anyone attempted this type of thing, in theory the 3A output should be more than enough for the vv mod, but I am unsure as to the reliability or even feasibility of the whole thing.
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