Awesome, looks like I’ll get some of those now, I’m sure I’ll eventually find a use for three of them.
You all really do make sure no problem goes unsolved! Thanks!
Hi guys, about this flashlight. Sorry for offtopic…
http://www.gearbest.com/led-flashlights/pp_5496.html
What battery can it take ? 14550?
this will take a 14500 or an AA battery.
Sanyo is fine but that cell has no protection. Maybe a new thread so others can benefit from your questions? They’ll never find this information buried here.
Thank you.
I officially hate you all that already received your F13.
You made me laugh out loud. Do you normally have slow mail in Romania [I assume that’s Romania], or is it just a sucky experience this time? I bought into the GearBest dreamcharger GB the other day, so I’ll see how my second experience is with them shipping to the states.
I wouldn’t say it’s unusually slow. Things come from Asia in 10 days or in 40 days or anything in between. It’s a lottery really. Glad I made someone LOL.
Best delivery was when I ordered a 2K monitor from S. Korea. It arrived in 3 days flat and was about 400 dollars, so i guess DHL was included.
I was told by GB that all the lights had shipped. That was a couple days ago. Whatever "all the lights" means, I don't know.
nice one OL. It’s not that i blame GB or anyone really, I am sure they shipped but I think that a lot of online stores use freight forwarders in China and that overcomplicates the whole process. It shouldn’t take more than 15-20 calendar days from them to anyone.
And I know this light is a light worth waiting for :heart_eyes:
I trust that by the time mine arrives, everyone will have tried all the various possibilities for improving on it and posted them. No rush about that.
Got my 2 today, after 33 days from order. One came with a 3 AA carrier - weird, the other one came with two 18650 adapters - again weird. Free extra parts I guess.
Lucky you… esp. with the 3AA carrier!!
Need a 3AA and don't want to wait for it to get here from china. Hit a local store and look for 3AA lights on clearance. Something like this:
all of mine came with an extra 18650 sleeve, no holders.
My two arrived in the same envelope: one had an extra 18650 sleeve and the other had nothing IIRC. I could be wrong - I either ended up with 2 lights and 2 sleeves or 2 lights and 3 sleeves - I’m certain that I did not get short changed.
Mine was the same, 2 lights in one envelope with a total of three sleeves
Haha. I know the feeling…
It’s almost a month now and i don’t even know if my F13 had already left China. 
Yes - I got 2 lights, 3 sleeves, 1 AAA carrier/holder.
Stock light had no thermal grease or epoxy under the star - very bad!
Ok - my stock measurements:
SONY 26650: 2.0A tail, lumens: 493 @start, 442 @30 secs (notice the big drop off - no thermal grease)
Of course I had to start modding right away... 
Actually went pretty quick, for me that is, but I don't consider this a classic "full mod"...
Mods:
- moved LED+ wire to before the resistors
- 22 AWG silicone wire added inside + spring
- 22 AWG silicone for LED wires, shortened to min length
- XM-L2 U2 2C on 20mm Noctigon, sanded on backside, added GC Extreme under the star
- used NO-OX-ID on driver contacts, retainer ring threads, body thread
- Notes: left plastic centering ring as is, stock lens, no tailcap spring jumper
Results:
SONY 26650: 3.0A tail, lumens: 748 @start, 745 @30 secs -- nice tint!!
Notice how the output really held well? Nice direct thermal path MCPCB, nice thermal grease!
If jumping the battery neg. to the body, I measured 833 lumens @start, so, the tail spring has got to be wired!! Big loss's from the spring. I've seen this exact effect soooo many times...
More Mods:
- 22 AWG silicone wire added inside tail - spring
- sanded down top of LED alignment piece from 2.68mm to 2.56mm, took a little off the inside as well
More Results:
tail spring wire - lumens: 816 - 792 (still SONY)
alignment piece - lumens: 830 - 799 (still SONY) -- SONY is done to 4.06v, 2.93A now
Various battery tests:
Powerizer: 3.23A (4.18v), lumens: 915 - 884
KK 4200: 3.08A (4.18v)
LG HE2: 3.35A (4.21v), lumens: 915 - 881
Efest 35A: 3.30A (4.20v)
MNKE IMR 26650: 2.66A (4.20v)