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...