The batteries are in parallel, so it's 3.7v at 1800mah.
That sounds like a lot of hassle for something that isn't (and probably can't be) patented, let alone most anyone can make one for themselves.
There's nothing to stop a manufacturer from making one right now - a pump bottle with a tube isn't exactly hard to replicate. The design could easily be improved and miniaturized in a factory as well.
Did anybody answer the question about the two 3.7v batteries? Is this a 6v mod, or is it running at 3.7 but double the battery life? Also, how does the pump work exactly.. is it dripping directly onto the atty, or is it pumping the liquid directly into the filler?
Did anybody answer the question about the two 3.7v batteries? Is this a 6v mod, or is it running at 3.7 but double the battery life? Also, how does the pump work exactly.. is it dripping directly onto the atty, or is it pumping the liquid directly into the filler?

MoonMan,
Nice mod!!
I was wondering if you used a Radio Shack 4 AA battery holder Model: 270-409 or something else?
let me know how much i want one.