Here's a few pics of a few mods I built, both I can run at 3.7 or 5v. The small box is a "puck" concept NOT thought up by me but by someone on the e-cig forum. The larger 510 bottom feeding juice box was my idea and it works great. It's powered by 4 NiMH 2400 ma AA batteries with a switch that cuts one battery out of the loop if I wish to go for 3.7v. If anyone wants to know how they are built, feel free to ask. I can build one of these in 1 hour. Total cost was about 12 bucks for the bottom feeder without batteries.

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