PeakLED El Capitan question...

LED Flashlights – General Info
1

Hey all, not sure how the Peak circuitry works, but there must be some kind of boost/buck circuit in it, as some people have requested and gotten 519A in it instead of the standard xpg(3?), and it works on AA, NiMH, 2.4V, 14500 3.7V.

Does anyone know (or can possibly fashion) a simple circuit that would allow multi-fuel like the Peaks do? I think a 1D version of a Peak light would be pretty awesome, and might be able to run AA or even AAA in parallel OR series with a proper adapter…runtime vs. brightness kinda thing. I kind of wanted something in the form factor of a FrazLabs, a tanky chonky boy, but with the multi-fuel capability of the Peak circuitry. I feel that while it may not end up being as simplistically user-repairable as the Fraz, with the proper thermal/shock potting, it might be just as tanky.

I have no lathe, no machines, no materials, nothing, so it’s purely a concept in my brain right now, but it’d be awesome if someone brought it to life.

2

Countycomm used to sell their Maratac 1D light which I think is along the lines of what you’re asking. I’ve got one, it’s nice enough but on the very long and neglected “to mod” list as the XPL-HD is too cool for my tastes. Unfortunately the LED board is integrated with the driver, so I think I’ll need to invest in a hot air station.

If you were looking for parts to attempt to build something like this, the convoy AA series lights have boost/buck capability, and drivers are readily available.

I have an unusual frankenstein build I’ve been meaning to do for a while which will be multi NiMh/alkaline and lithium compatible, perhaps I should pull my finger out and crack on with it…