Unno, depends what’s considered maximum (“high”, “turbo”, whatever) when cranked to 100. Regulated, or not? Then, even with ramping but set to, say, 20, that’d drop in current/brightness as cell voltage would drop.
At some point, it just boils down to, “eh, whatever…”.
Much appreciated for the answer and the time you took for it 
Please don’t see my questions as a rush to make things faster, despite I’d like to have “this” flashlight in my pocket “the sooner, the better”! 
I was just questioning if - in the end - “will it worth it”! Of course, in the name of flashlight science, it will, and if the “crew” involved on this is successful, it will be a breakthrough in this field (BLF is a micro cosmos for that, as we’ve seen, and we must be proud and acknowledge it right away)!
As you mentioned “The real challenge is to get the best of both worlds in one flashlight”, so the question is will it be possible to get those worlds into one. We will deal with different types of batteries that have different working voltage, different cut-off, different drain, different power to the Led… and a “special” UI that needs to be carefully tuned for both with much prejudice for one type or other type of cell!
Not saying it will be impossible, but it will take a lot of time, effort, resources and so on to get to that eventual driver! And in the end, this will probably not work 100% as if it was used with only 1 type of cells.
I’m not being defeatist, never, but it will be something… I do trust the involved people, though, and if someone is able to make it real, it’s them! :+1:
About this question: “So, why do most people look for a dual-use flashlight that can run both with NiMH and Li-Ion?”
Not a general answer, only mine. The reasom why I like the SP10A/B is because I can use it with both types of cells, if I’m at home/city I can use it with 14500s and I will charge when I arrive home, when I travel I will take it because I will always get AA alkalines to put inside of it, without issues. Versatility is something useful and convenient and I love it!
But Anduril is more than “convenience”, it is versatility and something so specific that needs to be admired and played with beyond the boundaries of simple EDC use!
Again, sorry for this questioning, and don’t see it as “doubting” I will still be in! Even if this takes more than 2 years as the FW3A
Thank you all for your efforts and work!
Muito obrigado for your answer and for sharing your opinion MascaratumB! :THUMBS-UP: :BEER:
Gratitude might better be addressed to kikkoman, Toykeeper, Tom E, gchart and Lexel for they are the real magicians. ;-)
As far as I am concerned my role is about coordination, organization and communication only. :-)
As you just said, a dual-chemistry boost driver with Andúril would be a breakthrough in driver development. Maybe this project - if successful - can be considered as a milestone for more multi-chemistry boost drivers. Actually, I'm thinking of LiFePO₄ (3.2V) support for future flashlights. Especially, with more and more LEDs coming that have a considerably low Vf, this chemistry could become more popular. On the plus side LiFePO₄ is considered to be much safer in handling.
Interested
Interested
Interested
I can’t wait for this to happen. I haven’t had an AA light in my pocket for a while and that will change if it supports NIMH. I know it’s too soon to speak of but I hope you can get Lumintop on board with this as well.
Still interested!
Still interested as well… 
Interested
I’ll have one
MascaratumB,
Boosting the voltage from a NiMh to usable levels for the LED is a bit rough. The NiMh cell will have voltage sag when we ask higher currents of it, so we end up boosting from ~1V up to 3.5-ish or so for the LED. If we wanted to drive the LED at 1A, that's easy for a Li-Ion 14500 cell to do, but from the NiMh cell we're suddenly asking for something like 3.5A from it. The alkaline will already have given up, but quality NiMh will hold up to this for a bit. Just not very long, as that's over 1C discharge, with voltage falling fast. The more the voltage falls, the more current we need to get our power output (because Watts = Volts*Amps).
I used to rebuild NiCd/NiMh tool batteries, and there are some cells out there that I wouldn't mind subjecting to that kind of abuse, but they are all larger than AA size. Eneloops are good, and can discharge surprisingly high drains, but the voltage is too much of an issue.
Interested, but I’m concerned about how Anduril will be ported for a boost driver, and of course the associated problems with boosting a NiMH/Alkaline.
I see myself using this light normally on 14500, where I would wish to have a max of ~600 lumens. But in case of emergency, it would be nice to also be able to run off of a AA/NiMH, where I wouldn’t want 600-700 lumens anyway to conserve power. I’d be fine with a max of ~100 lumens, which all chemistries should be able to handle.
Interested.
How did Wuben the magic in its E05(-I)? It runs on NiMH the same modes as on 14500, except turbo. Is this a matter of efficiency?
sounds good to me, interested for sure
Would it be possible to limit the power of the flashlight when running on NiMh on the basis of max optimal load for that cell chemistry? Unsure if that would be easier or harder
Interested
This is mandatory.
Only just realised I haven’t explicitly expressed my interest. So… interested!