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Sold/Expired Moddoo Drop-ins: Triple CREE XP-E

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Re: Moddoo Customs: Triple CREE XP-E (reservations open)

Justin Case said:
The MN21 lamp for the SF M6 pulls about 4.9A. So you would think that SF knows what it is doing when they are allowing their 123A cells to pull these sorts of currents. But....

.
Click to expand...

Not to venture too far off topic, but the M6 uses 2 parallel stacks of 3 cells, so current draw is 2.5A per cell.
 
Re: Moddoo Customs: Triple CREE XP-E (reservations open)

I keep forgetting that the M6 uses 3S2P.
 
Re: Moddoo Customs: Triple CREE XP-E (reservations open)

ElectronGuru said:
G2 bodies cannot (practically) be bored. And even with metal bezels, G2 bodies do not provide enough heat conductivity for high performance LEDs.

Moddoo Triples have not been tested with and may not be compatible with none SF hosts.
Click to expand...


Sorry, I meant Surefire 6P.
 
Re: Moddoo Customs: Triple CREE XP-E (reservations open)

Gotcha John. I might have a bored 6P... or two:


2r5fhmw.jpg


😉
 
Re: Moddoo Customs: Triple CREE XP-E (reservations open)

I am working hard on these, and hope to get a bunch of them done by Saturday.

Things are going well.

It just takes time to do the job right.
 
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Re: Moddoo Customs: Triple CREE XP-E (reservations open)

Thats exactly what i imagined, specially after seeing the pics, it is clear that you have put a lot into them and want to come out just perfect.

I am definitely curious but surely will not bother with my curiosity what is a great process, thanks for the dedication :thumbsup:
 
Re: Moddoo Customs: Triple CREE XP-E (reservations open)

elho said:
3A for an 18650, but at the higher voltage of 2xCR123, it should be less, no? :thinking:
My wild guess would be rather 2-2.5A most of the time assuming them to sag to 4-5V.
Click to expand...

Assuming that the 123A cells can deliver the current, draw will still be about 3A. The driver is an LDO regulator, not a buck switching regulator. Excess voltage is simply wasted as heat. The driver acts like a smart resistor.
 
Re: Moddoo Customs: Triple CREE XP-E (reservations open)

We've had a paradigm shift that has kind of snuck up on us. If you'll bear with me, I'll try fleshing it out.

Some time after the beginning there was alkaline (primaries). We got tired of throwing them out, so we found nickel cadmium. Capacity was less, charge retention was less, but we could reuse them.

Then along came lithium, a new kind primary. Smaller and more powerful at the same time. But we still threw them out. So we found lithium ion. Capacity was less (at the same size), charge retention was less, but we could reuse them.

But over the last few years, lithium ions have gotten bigger while chemistry's like IMR (LiMN) have debuted. The result of these developments is that unlike options in the past, the latest generation rechargeables can now do MORE than the primary (non rechargeable) equivalent.

The result is that IMRs of the same size and larger ICRs (18650's and even 17670's) can do more than lithium CR123A's. Meanwhile, we're going crazy loading up higher and higher drain applications to get more and more light out of the same form factor.

At some point, the cells that aren't seeing improvement, get left behind.
 
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Re: Moddoo Customs: Triple CREE XP-E (reservations open)

That's an excellent post EG, lots to think about. Why are we falling over ourselves to push the latest advancement into obsolescence by doubling or tripling our expectations?

But I digress: I don't believe it's a paradigm shift you're emphasizing here. Yes, I am being a complete nit, but I'd also like to see that I'm understanding the direction of your idea.

There are great advances, and changes in chemistry. Advancement within paradigm, not shifting of.
True, "The result of these developments is that unlike options in the past, the latest generation rechargeables can now do MORE than the primary (non rechargeable) equivalent." :thumbsup: You're totally correct, and I believe there is a strong argument that this has many features of a shift. But I interpreted the substantive meaning of your post as technology advances and old cells get left behind. To wit, cr123's can still be used. Yes, the one-time wunderkind lithium primary is receeding, but it can still be used in the new Moddoo triple. And thus, the triple, and your post, is about techological advancment. If the paradigm had shifted the old cell would not work any more. But the SF123 still works with these drop-ins, and we all keep boxes of SF123's stashed away against a time when we could not buy boxes of SF123's to stash away. So this is advancement with-in a paradigm, not a shift to a new one.
lovecpf

Best,
Linger
 
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Re: Moddoo Customs: Triple CREE XP-E (reservations open)

Runtime test results for MEDIUM level.

Hey guys,
I just tested an XPE R2 triple on MEDIUM, in a bored HA black Surefire 6P.

The battery is a used AW 18650 2600mAh, maybe 50 cycles on it.

The test began at 4.18 Volts
Current draw was 950mA
(approximately 310 emitter lumens)

Test ran for 5 1/2 hours

The light barely got warm.

Battery is now at 3.5 volts
Current draw is 460mA
(approximately 150 emitter lumens)
This is roughly a test to 50% of the original output.

The driver still cycles through the 3 modes just fine.

This drop-in still pulls 1.75 Amps on high mode after running the cell down to 3.5V.

This equates to about 500 emitter lumens on a dead battery in HIGH mode.

:twothumbs

These cells will run down to 2.5V before hitting the protection cutoff.
I am unsure if this will damage these particular cells or not.
I'll look into it and report back.
 
Re: Moddoo Customs: Triple CREE XP-E (reservations open)

:rock:

Looking at these numbers and thinking about how much output it puts out i think i made a mistake when i chose a single mode driver, best choice seems to be a 3 mode driver for me at least, much more versatility, and of course efficiency.

I was planning to run it with a McE2S but looking at your runtime test, i will be missing a lot with that UI (which i happen to love)... im in line for the XP-G version so i guess i got some time to make up my mind, is that ok?

would be interesting to see a runtime on low mode.
 
Re: Moddoo Customs: Triple CREE XP-E (reservations open)

This is excellent news! :grin2: Definitely thinking of purchasing the XP-G version, which will be brighter, but also probably last longer... Definitely interested in a low mode run time test, as well.

Oh, hey, how much would you be selling the 6P/C2 bodies for? I'd much rather have a Surefire body than a Solarforce body for this light drop-in.
 
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Re: Moddoo Customs: Triple CREE XP-E (reservations open)

John_Galt said:
This is excellent news! :grin2: Definitely thinking of purchasing the XP-G version, which will be brighter, but also probably last longer... Definitely interested in a low mode run time test, as well.

Oh, hey, how much would you be selling the 6P/C2 bodies for? I'd much rather have a Surefire body than a Solarforce body for this light drop-in.
Click to expand...

OK then, LOW mode runtime test begins now.:popcorn:
This may take a while...

Current draw is about 105mA
I'll guess at 40-50 emitter lumens.
(a single XPE R2 is about 40 lumens at 110mA, 3 of them at 1/3 of 110mA is unknown)

Custom bored Surefire lights are available in most any configuration you can think of HERE
 
Re: Moddoo Customs: Triple CREE XP-E (reservations open)

Well, I think that you can almost definitely count me in for one of the XP-G models, and a (HA Gray) C2 Centurion light. Also 2 18650s.

Time for a little discussion with my parents. And more hours at work.
 
Re: Moddoo Customs: Triple CREE XP-E (reservations open)

"almost definitely" is a contradiction, so your only option is to get it :twothumbs


Clock a bit more hours, i had to save some to get one too its the most i have spent in a part and not an entire light but theres the evidence that i made a good decision 😉
 
Re: Moddoo Customs: Triple CREE XP-E (reservations open)

LOW mode runtime test update:

It's been about 24 hours now.

Battery is at 3.73V
Current draw is about 70mA

The light is still bright, too bright to look into at 5 feet, in the daytime.
(maybe I need to get a light meter soon)

will update later this evening.

...Back to building Triples...
 
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