D.Q.G Twisty Cree XP-G2 & 10440 protected ?

LED Flashlights – General Info 1 x AAA Flashlights
1

Hello,

i just got the DQG twisty from gearbest ( http://www.gearbest.com/led-flashlights/pp_106567.html ) very nice tiny light, but i was wondering if there was any protected 10440 that would fit ?

I found those https://www.fasttech.com/products/0/10005377/1450201-singfire-brc10440-3-7v-600mah-rechargeable-li-ion and i was wondering if it would be alright ?

I already tried grey trustfire protected ( too long) and ultrafire blue ( no top ) and no luck until now…

I know Efest would be better, but i fear unprotected 10440…

So, any idea ?

Thanks. :slight_smile:

2

Go for the Efest 10440 batteries! They are great little batteries and are of the IMR type that needs a very high temperature before thermal runaway occurs. In fact I mistreated (overheated by using high current until empty in a tiny flashlight) one already to the point that something bursted and brown gooey cam out, but nothing catastrophic happened.

I'd be way more scared of a protected 'Singfire' than of an unprotected Efest.

3

I’m happy with efest 10440 on my I3S and others flashlights, but for the DQG you need a Top button battery and the efest is a flat Top. Not usable with the DQG that you comment.

4

Did not know about that, you could solder a blob on top of the Efest battery...

5

Yes, but a very little. The hole in foam is tiny.

(I am waiting for the new 10440 olight battery…)

6

Thank for your answers, but i would prefer something small, top button and protected !

I know, i want something impossible. :wink:

But what about those SingFire BRC10440 ?

It’s written :

**Electrolyte: LiPF6
Battery core: LiNiCOMnO2-C

on the fasttech product page.

Is it good ?

Thank again !

7

It has FIRE in it’s name, so, better stay away :wink:

8

Ok….so…what would be the perfect 10440 for this light ?

It’s a bit complicated… :~

9

How about led lenser protected 10440, not sure though if it would fit because it won't fit on my singfire sf-348

10

A low-quality batter that happens to be “protected” is not necessarily safer than a high-quality one that isn’t. It would take pretty serious abuse to blow up an Efest 10440.

I put a little dollop of solder on each of mine to serve as a button top. Works a lot better than the flashlight I put them in.

11

Breinrules>Thank you for the advice, but where can i buy it ? :quest:

12

I tried a button top 10440 IMR Sibelle in mine. The light is bright for about a second and then drops down to normal levels. Buck circuit maybe.

Mike

13

Authorized led lenser shops? I searched for it but cant

Find any online shop for it as of now. This battery is bundled to led lenser m3r.

14

Is there any way to get the Efests to work without soldering? I already bought a few and I don’t have a soldering iron and don’t really want to bother with one.

15

You could put a small rare earth magnet on the terminal.

16

> small rare earth magnet on

With the big red flag that if the little magnet slips slightly sideways it short-circuits the battery positive terminal to the shell of the flashlight.

Highly not recommended.

With a cell this small remember soldering onto the positive terminal is also highly not advised by the battery manufacturer.
Wear eye protection, work outdoors, and remember, don’t inhale if it vents.

There sometimes are things you just have to let go of fiddling with. This might be one.

17

Well, after some months using the DQG twisty, i have to say i’m quite disappointed: the light is flickering a lot and it’s getting harder each day to find the tiny spot that switch the flashlight on.

I’m not either convinced by the tight OFF feature as it doesn’t seem to do anything good to the threads and i often have the feeling i’m forcing it…

I’m using an EFEST 10440 V2 so battery is not the problem.

Any idea on that flickering problem ?

18

Flickering is often a sign of a bad ground somewhere. Sometimes due to a loose wire or if the driver is soldered in and had a cold joint or there is loose debris from milling causing an intermittent short and bypassing the led. The ends of small cells are weak so over tightening can dimple B- and cause a disconnect.