Well in the stock form, amps draw could be close to 4A or less at start. 4A draw would only be roughly 1.4 hours, but the amps draw starts to drop immediately as the battery drains with a current limited driver, not current controlled. You'd expect more that 1.4 hours, and in this case, it doubles. These cells are the KK 26700 sold by Richard at MtnElectronics. I've tested a few on the Opus charger and they show 5300-5400 - some variations cell to cell which is typical for all KK's. If you measured tailcap amps along the way on occasion, it should indicate droppage in amps. At the end, maybe under 1A? I'm thinking average was about 2A for a 3 hour runtime.
These are excellent cells though - low resistance and high capacity.
That's probably the loophole manufacturers take advantage of by dropping amps draw 1-3 minutes into a run. What mudgripz is doing is more practical, but of course with lowering output along the way, a function of the driver, the Vf, and the cell.
I'm thinking yes. I would contact MaxToch, probably Amanda, if I were you before buying. I don't see it specifically mentioned on their product page here:
I asked richard before ordering my m12 from him. He said it had the direct Thermal mcpcb. If it didn’t I was going to order a direct one from him and reflow it. Not sure if they come stock with it or if Richard is changing them to direct mcpcb.
I wish there was an easy way to take the tail plug out of this light without scratching it up…. if anyone has any ways of removing it safely let me know.
Hello I was wondering if the newest production runs of m12’s have direct thermal path mcpcb’s or not.
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MTAmanda 12/09/2014 - 00:14 Delete Block
Hello,
Thanks for your inquiry. The latest production hasn’t apply direct thermal path yet. It is copper MCPCB.
Hhhmmm... I wouldn't think Richard would be swapping these out on his own - just a lot more time he has little of, I would think. This sounds quite weird to me... Since they sell the DTP versions, why wouldn't they switch over in all their lights? Maybe just didn't do a new batch run of M12's yet?
RMM is out of stock for the M12 flashlight, maybe on his new order he is able to specify the inclusion of the DTP feature? I plan on sending him an email to confirm this.
I may have been mistaken when I said that the M12 had a DTP MCPCB. I had checked the M24 and it did, and I think that I checked one of the M12s as well, but I don't know for sure now if I thought I had checked it but just got mixed up with the M24. Unfortunately I don't have any more M12s to check out.
Don't think anything lost Richard - you are out-of-stock now, so maybe something to ask/check in the next run. I know I was sort of surprised the M12's weren't, but I would think these are high qual copper boards anyway, and probably don't have much loss's, accept for 6+A which is hard to get to anyway... In djozz's tests (https://budgetlightforum.com/t/-/25978), he showed even the cheap copper board at 3A has no difference, and at 4A, it's about 4% or so.
No problem Richard. It’s a great light either way. I have added 22awg wire to the tail sping, and will reflow the led to the dtp mcpcb once one comes in. I’d like to find a blank to fit in place of the stock driver so I can run a better driver without having to remove all of the components from the stock one.
+1 agree - probably so small, not measurable or within the error tolerance range.
I would assume so - not sure if they spec it that way, but from look'n at the pic of the driver in post #1, appears to be a diode to the right of the MCU - that's probably responsible for the reverse polarity protection.
Thanks Tom E. I would hate to fry a $65 flashlight because of a careless battery insertion.
From what I have seen, the lesser known Chinese manufacturers don’t seem to write much in their product advertising about the electronic features on their flashlights, such as over discharge protection, low voltage warning, and reverse polarity protection. But the well known manufacturers, such as Fenix, list all the electronic features.
My several days old M12 draws 1.9 amps ( 18650 B batteries) at the tailcap, and they claim circuit eff to be above 92%, is that means that the emiter is overdriven?
It reaches 93k lux at 1 meter with same batteries
I am talking about the M12 sniper 2x18650 version,cause i saw ppl talk about it too, if eff is 92% maybe the emitter runs at 3500ma or smth, not 3000ma, or its just the driver eff isnt 92%
My modded Yezl beats it by far, but its dedomed too, still waiting for HD2010 and Olight to arrive
With 19650 PF class barreties it sometimes cant stand the rifle`s recoil, those batteries are a bit short