My 12 Mako Mk ll ti (green trit) 2 stage AAA, Mako Mk Il ti pol (green trit) 2 stage AAA, Spinner ti (green trit) AA,, Ion alm nat 2 stage CR2, Ion alm black 2 stage CR2, Aeon Mk. ll alm black 3 stage CR2, Aeon Mk. ll ti 3 stage CR2, Nautilus Mk. ll alm black 2 stage RCR123, Nautilus Mk. ll ti 3 stage RCR123, Aeon Mk. lll ti CR2, Aeon Mk. lll cu CR2, Maus Mk. l cu N-cell
Pretty nice flashlight, MK1 with 2 modes. With these batteries in max it works for 20-25 minutes, at the minimum ~7-7.5 hours (tested on 4 fresh batteries from one batch)