I am constructing a PVC saber, with a 1" interior diameter. There will be no sound, no accent lights, the only thing the battery will be running is the white Seoul P4. There are only two battery packs so far that fit inside: a 2 AAA from radioshack, and a 3 AAA pack from a flashlight...I'm unsure if I can make the three pack work, however. It connects top and bottom, and I'd have to solder the wires directly to it.
As the P4 says it's max is 4 volts, will it run well on only 3 volts? (I don't want to use those Lithium-ion batteries, that thing about exploding scares me). Also, if I am running less than max volts, do I still need a resistor?
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