Brand?
me: Nitecore, I have 7, although lately I have been mostly interested in Peak Leds and I have bought 6 in the past 2 months as well as 2 extra bodies and 3 90 degree heads. They are small and have a great build.
Battery type? Alkaline, Nimh, Li-on or Li-po
me: Li-on wherever possible otherwise
Battery size preference
me: 18650, 14500, 10440, cr123
me: Nitecore, I have 7, although lately I have been mostly interested in Peak Leds and I have bought 6 in the past 2 months as well as 2 extra bodies and 3 90 degree heads. They are small and have a great build.
Battery type? Alkaline, Nimh, Li-on or Li-po
me: Li-on wherever possible otherwise
Battery size preference
me: 18650, 14500, 10440, cr123