i'm just wondering if i'm calculating this right. say i got a 2aa flashlight and wish to convert it into a higher power bulb. so i run off to radio shack and pick up a bulb that's 2.2-2.4 volts with a 700 mah rating (would be bright!). so would the burntime for my light with say energizers at 2850mah capacity in their cells last (2850 / 700) = 4hrs? i'm just checking if this sounds right? cause i play with tons on batteries in my radio controlled applications and have no prob with 6-8 cell calculations but not sure if it's the same here.