I just got these in today from DX it was 5.40 for a pack of two and we all know that we can use these.....overall quality is not bad for the price at all. When it came to fitment it fit all my lights with an exception of one because of the length, i dont know why they say these are 16340's when there not because of the 2mm more in length. The wrapper around the cell seems kind of thin so i dont know how well they will hold up with use. If you tend to use primaries and want to go rechargeable then i would recommend these because of the price, but please make sure that the light can handle the voltage.
I just got some of the 18650 and 14500 flame Trustfires. The 18650's are very good and fit all of my lights. But the 14500's don't fit in a couple of my lights due to the length (Fenix L1D, Uniquefire S10, and Aurora SH-035; they fit fine in the AKOray K-106). I'll put up some numbers in another post.
Thanks for the feedback man......for the value you cant go wrong with these at all, they work well so what can one ask for. I also have the 14500's as well and you know that i have the same problem, guess its time to put in an order for the 18650's.
What i do like about the cells is that they fit the SolarForce L2m perfectly.....with the AW's and the likes the cells rattle but with these they dont. Might have to get a couple more for just the L2m's.
Today I also received a pair of these batteries. They are about 1mm shorter than the grey Trustfires, which is a good thing. I couldn't screw my UF A20 completely shut with the grey ones, with these it's no problem.
Is that a protected flame trustfire? I ask because I accidentally bought unprotected flame 16340 trustfires and they are slightly shorter than my aw 16340's.
Welcome man.......i hope to do a small runtime test soon and you might as well do one if you can and have time to look at the light while its running. I have owned it for one day and im pleased with the cells.
Funny you should mention it, that’s exactly what I’ve been doing for the past 45 minutes.
In the UF A20 the battery gave me about 30-35 minutes runtime on high before it started dimming noticeably. After 45 minutes brightness was down to about the low-level on a fresh cell, so I switched off the light and measured the battery’s voltage. It was down to ~2.72V, which should have triggered the over-discharge protection. I’ll repeat the test tomorrow with the other battery to see if this is just a one-off or a design flaw.
All in all, runtime is comparable to the grey Trustfires.
It seems to me that the cell is acting like the protection is not kicking in especially if the light is dimming first....usually a good circuit will just open and the light will turn off when voltage cutoff is reached. I would see if the other cells behave that way, but i would still use those cells especially since you know that one of them causes the light to dim when voltage is being reached. For the price of the cells what can one do, im going to be happy no matter what especially since im not paying 9 bones per cell.
Im doing a runtime test on an L2m, the cell came off the charger at 4.17volts, the dropin used is a single mode. Well get back when the juice stops flowing to the emitter.
Well so far these cells have exceeded my expectations especially since they were 5.40 bones for a pack of two.....now you just cant beat that at all. Ending voltage was 3.18volts. Guess im going to stock up on a couple more of these. I am very impressed so impressed that i had to call my buddy Pete aka Fishinfool.
I didnt think of that at all......well i have been using both cells one used for edc and the other in my outdoor light which gets used a lot and its right next too me in bed.
Al wanted me to do a runtime on the Trustfire Flame Protected 18650 #1 & Solar Force L2M (3 mode 0.8v - 4.2v) so here it is:
30 mins. = OK (starting voltage = 4.19v)
1 hr. = OK
1 hr. 30 mins. = OK
2 hrs. = OK - still going
2 hrs. 10 mins = OFF (end voltage = 3.32v)
= weird thing happened - after it shut-off after 2:10 I started to twist off the bottom and it came back ON. Any idea what happened? Anyway, I turned it off and on and probably could have left it on for a little longer but I didn't think it was good for the battery. Could I have left it on too see how much longer it would run?
After this one I'll do the same with my L2M and the 3 mode 4.2v - 8.4v and see if there is any difference. I'll be doing both tests twice using 2 different Trustfire Flame Protected 18650's just to compare with each other.
It’s not really weird, if you think about how the protective circuit works. It monitors the battery’s voltage and cuts off as soon as it drops below a certain threshold. If it would immediately release the circuit once this threshold was exceeded again, the whole system would start to oscillate around this threshold, as the battery’s voltage bounces back again a bit, as soon as the current flow is stopped. To prevent this, the protection won’t release as long as there is a closed circuit connected to the battery. There is probably also a built-in hysteresis that keeps the protection locked, once it was triggered, until the voltage reaches a certain level above the cut-off point.
In your case, the protection triggered, cutting the load from the battery. The battery’s voltage bounced back above the hysteresis point, but since there was still a closed circuit connected to the poles, the protection wouldn’t release. When you unscrewed the cap, you probably opened the circuit for a fraction of a second, thereby resetting the protective circuit. If you would have waited a few seconds, it would have triggered again, when the voltage would have dropped below the cut-off point.
I would have said the same thing as well......Nice test run on the those cells bud, there def going to be on my list since they have done well with Teds runtime test and there also recommended by him to.
