Hey, that's half the fun! 
Sorry I have thing for runtime, must be because I never had enough batteries when I was a kid and I appreciate things that run a long time.
Extremely professional review here brted, extremely informative and great shots. Frontpaged.
I decided to give them all some exercise, it was very, very bright in here last night.
I'll do a low runtime now. It'll probably be a day or so till it is done - it ought to run for 16-18 hours on low.
After 2 hours, output is now down 7%. Quite a long time to go.
Watched battery chargers are even slower than watched kettles - which, of course, never boil. And I have 10 more of them to charge.
Output now down to 86%. Quite a way to go.
Output now 82%. Still going strong.
78%. Not dropping appreciably. Got the 18650s all charged again.
Wow now that is pretty good.......
76% and going strong. There sure are going to be a lot of data points on the runtime graph.
76%
Down to 74% now. Wonder if it'll still be lit in 9 hours time when I get up in the morning?
72%. Off to bed so I'll stop boring you with updates till the morning when a runtime graph will appear. Assuming it has decided to turn off by then. I reckon another 3-5 hours should see it.
Long enough Mr. Admin? Or do I need to get some higher capacity cells?
Dude with higher capacity cells that light should last a year with low running...lol.
This has been a real white-knuckle thriller for me, percentages trickling in all day long, I love it!
24 hours or I'll eat my hat.
58% and still going. Better look out the hat seasonings!
We're now below 50% but it is still emitting light. I'll let it run till the cell protection cuts in. Now 47%
Still lit. Down to 29% Now 15,555 data points.
Looks like it'll still be lit when I go to work. It is just possible that hat eating won't be necessary.
Now down to 6%. Don't think I'm getting a whole day out of it.
How are you going to cook your hat?
Steamed....lol......with a little bbq sauce for good tasting. Thanks for doing the runtime....the light is still doing a good job at lighting up, have you tried turning the light off to see if it will come back on.
Came home to see to the hound - it is still lit. Now down to 2% after 28hr 20 minutes. It is about as bright as a sick glow-worm but it is still shining. Now 20,385 data points. This is impressive, I'd have thought the cell protection would have cut in by now.