Long runtime is one of the desiderata that always comes up in EDC discussions. I'm wondering if any of you have stories about any times in real life (not just contingency planning) you've actually needed a long-running EDC, or at least had the long runtime come in handy. Let's say this means you needed at least 1 hour (extra points for needing over 2 hours, and lots more points for needing > 5 hours) of runtime from your EDC light in an unexpected situation (because if it was expected, you'd have brought extra batteries or a longer-running light) where you had no reasonable way to get more batteries (which probably means it happened away from home, since you probably have lots of other lights and batteries around the house). 1 hour, 2 hours, and 5 hours are the runtimes of a Surefire E2e, Arc LS, and Arc AAA respectively. I'm also interested in hearing how much brightness you needed. Maybe you had a Surefire, but would an Arc AAA have been enough?
Me, I've EDC'd at least one flashlight for many years before becoming flashaholic, and can't remember any times (including spending months at a time travelling with a backpack) when I needed more than a few minutes of flashlight runtime on any single occasion. Even that story the other day of a power failure in the NYC subway would just mean having to walk through a dark tunnel to the nearest station. That might call for a brighter light than a typical keychain LED (since it has to light the way for a large group), but since the stations are just a mile or so apart, the nearest one should be within 1/2 mile, no more than 20 minutes or so of runtime should have been needed.
So I tend to think carrying EDC lights with many hours of runtime in case of emergency is somewhat overrated. If anything, I'd want an emergency EDC to be reasonably cheap and easy to replace, since I might have to lend it to someone and might not get it back. I'd rather that happen to a PT Blast than a McLux /ubbthreads/images/graemlins/wink.gif.
Me, I've EDC'd at least one flashlight for many years before becoming flashaholic, and can't remember any times (including spending months at a time travelling with a backpack) when I needed more than a few minutes of flashlight runtime on any single occasion. Even that story the other day of a power failure in the NYC subway would just mean having to walk through a dark tunnel to the nearest station. That might call for a brighter light than a typical keychain LED (since it has to light the way for a large group), but since the stations are just a mile or so apart, the nearest one should be within 1/2 mile, no more than 20 minutes or so of runtime should have been needed.
So I tend to think carrying EDC lights with many hours of runtime in case of emergency is somewhat overrated. If anything, I'd want an emergency EDC to be reasonably cheap and easy to replace, since I might have to lend it to someone and might not get it back. I'd rather that happen to a PT Blast than a McLux /ubbthreads/images/graemlins/wink.gif.