Battery life test Chinese Flashlight 1 or 2 AA cells
A solid 30 hours of run-time from a single AA cell ain't too shabby - particularly for 3 bucks!
One advantage of the single-battery configuration is that's it's probably less unwieldy in an elastic headband adapter than the 2-cell version.
Too bad there isn't some easy way of connecting both AA cells in parallel inside the 2-cell case - That would give you 60+ hours of run-time before the batteries needed to be changed out.
