It is difficult to know it, I at least there were a picture showing the tube and battery closer I could resize it on autocad.
For me it looks about 3.5-4mm thick wall on the plastic tube, which would be an inner diameter of about 19 to put the 18650 inside plus 4x2 equal to 26-27mm.
But as I said unless someone takes the risk accepting he might only be able to use 18650 and maybe 22650 and 25500..
The size of the reflector looks like it will be a good thrower anyway.
I decided to accept the risk. I strongly believe this will accept a 26650 battery. In fact I strongly suspect it is designed for 26650, but doesn't list it (I realize this may be wishful thinking..). Nonetheless, I couldn't resist pulling the trigger on this one.
Keep your fingers crossed for me that I'm correct.
If I end up lucking out on this decision, I'm thinking that the King Kong 26650 would be a good choice? http://www.intl-outdoor.com/kingkong-26650-4000mah-liion-battery-p-136.html
What would be the best bang for the buck in terms of a charger? Is this too low-end, or would this work well? http://www.intl-outdoor.com/ml102-usb-charger-for-18650-26650-battery-p-243.html
I just ordered a charger for $12, but I don't believe it will charge 26650: http://www.dinodirect.com/li-ion-battery-fast-chargers-multifunctionl-cylindrical.html
I'm wondering if an existing generic 18650 charger might be modded somehow so that it would charge a 26650? Or perhaps this is ill-advised...
I saw this yesterday on DX, looks interesting. Looks like a good light to bridge the gap between my Ultrafire KF-T60 and Fandyfire STL-V6. Think I might order one.
I was talking about the TR charger all along, since it was the question if it can charge the 26650 with it. I said, it can charge a 26650 cell, but it won't fit.
A slight mix-up.
Or course the is no problem using a flat top cell in that Fandy flashlight.
I don't have the King kong, but I do have the MNKE, and I have charged them with the TR001.
As they are not protected, the lenght is not too big, so there is still a gap to cover in the charger.
I added a magnet to make contact with the positive and the charger, here you can see it on these pictures.
*I think this charger charges at 450mAh, it takes a long time to do it, so actually I am doing it with the Sysmax intellicharger which does it at around 850mAH (they fit on this one without any help).
I would recommend you to do it on another trustfire charger witht the same shape as the TR001 but at a bigger amperage.
I'm ordering King Kong batteries today, and that $7 USB charger as well. I'm glad that I can probably charge 26650 batteries in an 18650 charger with a little finagling.
Isn't charging at 450mAh good for batteries?
I look forward to getting the FF HD2010. I know it will probably be next year before I get it, which is no problem. I can wait. I'm just glad I placed my order right away. I'm going to guess that this light will be popular, until the next new thing comes out...
I bet we start to see an increase in 1x26650 flashlights getting designed and released to the market in 2012. Then later in the year I bet we'll see 2x26650 lights with 5 or more XMLs...