ENEDED

I think that’s a mistranslation. I’ve never heard of a flashlight where you TIGHTEN the tail cap to lock out the flashlight and disable the standby drain.

The battery included is a protected 16340 according to the website. I wonder if you have a problem with the protection circuit on the battery itself. Go buy a CR123 or a non-protected 16340, and see if you have the same problem.

Good point, we think alike.

I put a brand new CR123 battery in the light during my initial trouble shooting with the same outcome when the tail cap was tightened. I would think the protection circuit in the battery would make a better connection w/pressure rather than open, but then I have never taken one apart.

@EyeballFryer Agree, I have never seen a light that you TIGHTEN the tail cap to lock out the flashlight and disable the standby drain.

My thought was that since the protection circuit is in the bottom of battery, that adding pressure at that point may have been the problem, but guess not. Sucks.

Hope you get it straightened out with GBst. Getting nice discounts sure is nice, but when something goes wrong, dealing with these companies can sometimes test your patience

I dont have that light, i won it some days ago in a gearbest give away. Have you tried a different 16340 ? I only have the 18650 version of that light and sadly none of my protected 18650 will fit, only unprotected ones. Even one of the shortest, the eagtac 3400.

If the light works with a paperclip i dont know what the problem could be. I guess you have to make a little youtube video for gearbest, dont worry, they have a decent service. They always offered me fair solutions.

Can you make pictures of the tailcap and inside, maybe the experts can see the fault.

Thanks for all the ideas and insight everyone.

GearBest CS does answer, takes about 24 hrs for a response.

In my case they offered $5 store credit and 15 reward points (50 points=$1) which I accepted….easier than pursuing a return and replace, and it is super bright in turbo mode (w/tail cap unscrewed). I was hoping they would just send out another light.

If you get a properly working M3 as most here have, it is a true bargain compared to the Olight look alike.

Anymore deals for this light?

It's $19.99 now. Not too far from previous group buy price.
http://www.gearbest.com/led-flashlights/pp_366735.html

The above was never answered. From what I understand, the included battery is not an IMR.

I placed my order for the M3 1A last evening. I have little to no experience with LiIon batteries, so I'd like to also know the answers. Since the M3 itself has all the built-in protections, would there be any benefits to using an unprotected IMR in it? Would an IMR give any extra brightness? Would an ICR be better for this light, and give longer runtime per charge?

The included 16340 was similar in output to the Klarus 16340. Surprisingly the light was much dimmer with a Fenix 16340.

I measured the M3 with 725lumens in a DIY sphere, so it is a very bright 16340 flashlight. I guess only the nitecore EC11 with the IMR cell is brighter

Got my M3 earlier together some other lights.

I am really surprised how small it is. This will definitely bump off my Convoy S2+ with 18350 tubes as my current main EDC light.

For reference, my protected Trustfire Flames “almost” fit. I hope the Windyfire IMRs I ordered will also fit.

Update:
Got my Windyfire IMRs. They are the same dimensions as the yellow OTR battery and fit perfectly. Will put the flames on backup duty.

This thread is 6 months old. I wanted to bring it back up to see if anyone that has the M3 has good/bad opinions on it now that they’ve been using it for a while. I just ordered a Utorch UT01 but also have had my eye on the OTR M3.

How’s it working out for you?

Abit worn finish and thinking of changing the led othervise it works great.

Looks like the 5C version is no longer offered in a package with a battery… or at least I’m not seeing it.

If that’s the case, what 16340 battery would you guys recommend for this light?

Thanks!

I like the IMREN here, but my M3 is modded for high performance and these cells work pretty well. EFEST's are also good,

Thanks, Tom.

Yeah, I saw the EFEST ones on imrbatteries.com as well, but the button-tops are out of stock, and I’m not sure if the flat-tops would work with this light.

Oops, I also have and use the IMREN flat tops in the M3, so any flat tops should work ok.

Good to know. Thanks.

I just ordered the OTR M3 with 5C tint. I was going back and forth between 1A and 5C… I guess I will be losing a bit of output with 5C, but I’ve seen people speak highly of this 5C tint on the M3, so I thought I’d give it a try. I’m hoping I can just attach it to my baseball cap and use as a walking light.

So… IMREN vs EFEST… is one generally considered better than the other, or should I toss a coin?

I suspect they are the same cell under the label, but not sure. Dunno - the IMREN's do better than my EFEST's but the EFEST's are older, so hard to say.

The 850 mAh capacity protected EFEST may do well in the stock light, but not sure if it fits.