Malkoff M31
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bigchelis
Flashlight Enthusiast
Finally: a Malkoff M31...
I want 200 plus lumens off a single AA NiMH or 2 NiMH?
Dereelight and Solarforce and the old M30 do not do this:mecry:
I want 200 plus lumens off a single AA NiMH or 2 NiMH?
Dereelight and Solarforce and the old M30 do not do this:mecry:
MrGman
Flashlight Enthusiast
- Joined
- Feb 6, 2007
- Messages
- 1,777
he has fine tuned the boost circuit to be better optimized at the lower voltages of 2AA and 1 CR123 battery that is more realistically at 3V or less and not something up to 4.2V. So I am guessing that its more likely to be at full power with a non rechargeable lithium battern below 3V and in the 2.7V range, and will probably make very close to full power if not still holding full power off of 2 AA NiMH rechargeables in the 2.4 to 2.7V range, much better than the older M30 series that really needed 3.7V to kick in full power regulation. Testing on a DC power supply is the only way to know for sure. But I think that was the whole idea of changing around his driver circuitry.
donn_
Flashaholic
I like the 5.5V top range of the M30. One of my favorite setups is an M30 in an old SF with 4x Elite 1500 2/3A cells. At 4.8V, it's the brightest M30 I've seen.
bigchelis
Flashlight Enthusiast
Its cause you havent seen my M30 with super low vf. At 4.2V input it draws 1.8A off AW 17670
cheers:wave:
donn_
Flashaholic
I've run about a dozen different M30s on a wide variety of cell combinations. Same with M60s and M61s. Nothing does better than the 1500 Elites. They get closer to maximum V-in and have amazing current capability.
Try them.
I don't bother with measurements. I have enough SF bodies and tails to do side-by-side testing.
In my world, what looks brighter is brighter.
Try them.
I don't bother with measurements. I have enough SF bodies and tails to do side-by-side testing.
In my world, what looks brighter is brighter.
Bullzeyebill
Flashaholic
Are you using the A14 with a 6P size body? I've got the conversion setup, and have always thought about using loose high capacity 2/3A cells with my M30.
Bill
donn_
Flashaholic
Hi Bill,
I'm using 7Z and larger bodies.
I'm using 7Z and larger bodies.
elumen8
Enlightened
Great, I'll finally be able to get an M31 to fit in my SF G2-shorty with aluminum bezel that I'm building.
JB
JB
PoliceScannerMan
Flashaholic
Wow no R123?
Does this mean we'll see a MD2xAA?
Does this mean we'll see a MD2xAA?
Bullzeyebill
Flashaholic
Wow no R123?
Does this mean we'll see a MD2xAA?
You could do an MD3 with 2AA. Would be a perfect fit, with something rolled up inside to reduce rattle. Don't forget the 2AA bodies coming up, not MD compatable, but will take the VME head.
Bill
KDOG3
Flashlight Enthusiast
Now if we can get a one cell body and have the high-low switch work in the VME head that would be fantastic.
KDOG3
Flashlight Enthusiast
Even better would be an M31L that would also work with the hi-lo switch in the one cell body....That way you could still have killer output PLUS longer runtime...
zwerky
Newly Enlightened
+1 on this. i have an M30 in a vme head/twisty body setup -- love this light, but would also like to see it have a lower mode for longer run time.
Hi Donn_
Are your flattops able to make good contact just from the pressure of the tail spring?
Thanks
Are your flattops able to make good contact just from the pressure of the tail spring?
Thanks
Bullzeyebill
Flashaholic
Use the M61L, or M61LL for longer runtime on an RCR123 with the VME head/short twisty body. It will run in regulatiion.
Bill
donn_
Flashaholic
I run my VME head, with a Diamond Dragon M60, on an E2e body with 2xIMR16340s and an Aleph tail with an McE2S (60 ohm resistor).
donn_
Flashaholic
The 1500 Elites are button tops.
3.3V max? Might be perfect for those 16340 LiFePO4 cells laying around and being under used. 3.2V nom. 3.5V hot.
Any speculation about performance from two NiMH's @ 2.4V nom. 2.8V hot.
Donn_,
Just ordered a bunch of 2/3A. The small size opens up several pastabilities. I'm guessing two will fit in a 6P and be approx. 6 mm short? Thanks for the ideas.
lovecpf especially when I learn something new!
Any speculation about performance from two NiMH's @ 2.4V nom. 2.8V hot.
Donn_,
Just ordered a bunch of 2/3A. The small size opens up several pastabilities. I'm guessing two will fit in a 6P and be approx. 6 mm short? Thanks for the ideas.
lovecpf especially when I learn something new!
Paul_in_Maryland
Flashlight Enthusiast
Re: Malkoff M31 on three nickel-zinc AAs
Before he settles on a voltage range, I hope Gene considers the growing popularity of nickel-zinc AA cells. It would be a pity if the M31 couldn't be driven at 4.8V to 5.1V under load.
I own two M30WF modules. One is driven by two NiZn AA cells, the other by three NiZn AAs in a Fivemega 3xAA body. Eac packs a punch. In the 3xAA, the resulting flood is marginally brighter but essentially equalled by my 3xNiZn Dereelight XP-G + diffuser lens from Flashlightlens.com.
Before he settles on a voltage range, I hope Gene considers the growing popularity of nickel-zinc AA cells. It would be a pity if the M31 couldn't be driven at 4.8V to 5.1V under load.
