Runtime Question

[Qben]

Going off of the runtime information here and basing it off of the Ni-Mh battery: What kind of runtime reduction would I have with an L1D-CE if I used a 3.0v 14500 (humor me), rcr123 3.0V, or RCR2 3.0V? Assume all would be protected. Also, can you get an 18650 3.0V, and if so what would I be looking at for runtime on that?


Fenix L1D CE - max - Energizer E2 lithium: 1104 (est 78.86 lumens)
Fenix L1D CE - max - Kirkland alkaline: 989 (est 70.64 lumens)
Fenix L1D CE - max - Duracell 2650mAh Ni-MH: 979 (est 69.93 lumens)

Fenix L1D CE - high - Energizer E2 lithium: 875 (est 62.5 lumens)
Fenix L1D CE - high - Kirkland alkaline: 866 (est 61.86 lumens)
Fenix L1D CE - high - Duracell 2650mAh Ni-MH: 856 (est 61.14 lumens)

Fenix L1D CE - medium - Energizer E2 lithium: 444 (est 31.71 lumens)
Fenix L1D CE - medium - Kirkland alkaline: 436 (est 31.14 lumens)
Fenix L1D CE - medium - Duracell 2650mAh Ni-MH: 434 (est 31 lumens)

Fenix L1D CE - low - Energizer E2 lithium: 121 (est 8.64 lumens)
Fenix L1D CE - low - Kirkland alkaline: 120 (est 8.57 lumens)
Fenix L1D CE - low - Duracell 2650mAh Ni-MH: 117 (est 8.36 lumens)

I'm sure I probably haven't given enough information.
But thanks in advance for any attempts to help me out.
Qben

By the way I just bought the L1D-CE. My first real flashlight!
That is, after patiently observing all the mind-bending changes over the past 4 months.

 

[VidPro]

umm so many factors, you got your LEVELs, your voltage, and the capacity of the battery.
i am assuming this is the ONE cell light, designed originally to operate off an AA alkaline or lithium consumer cell

First the Fenix regulation is very "loose" for lack of a better word. the more voltage you jam in, the faster the light will depeate, and the hotter it will run.

14500 li-ion type cells would have about 750ma that would be relative to total watt capacity of a lithium AA.
if it was run at the SAME OUTPUT , meaning down a few steps, it would run about as long,
but at the SAME SETTING it will run hotter for shorter. much shorter.

RC123 Li-Ion could have AS much total watt capacity (as the 14500)
RCR2 Li-Ion would be about 1/2 that capacity (as the 14500)
18650 Li-Ion would be about 3 TMES that capacity (as the 14500)

and you better check your voltages, cause only some of them batteries come in a 3v regulated down style, most are 3.6, fully charged to ~4.25, so when you say 3.0V i dont think that all of them are availble like that.

so a few factors i guess.
1) at the same Setting, with a higer voltage battery, your going to be running harder, and running Less time, dependant on total capacity

2) relative to the SIZE/weight of the li-ion , is almost directally perportional to its total capacity and similar to lithium primary.

3) the flashlight might be overdriven for a while with higher voltages. i do not think this particular model was intended ever to run a 3.6V battery fully charged to its ~4.25 volts.

4) i am not sure which curcuit type this thing is using for sure, that would have to be verified.

5) 18500s have got some real total juice, if you got the place to fit them in.

 

[Qben]

Someone has been soliciting interest for 3.0V 14500s and says he can get them if enough people are interested. I guess my ideal situation would be to have the L1d-CE size with the option to run the much brighter "max" mode of the L2D-ce if needed. The head, I am told, is exactly the same as the L2D-CE which regulates it's 3.0V input, so I should have the exact same output as indicated on quickbeam's review of the L2D. I was just trying to get some idea as to runtime. If I understand correctly, the Lith Ion would have the same output at every setting except "Max" on the L1D-CE(provided that it is within the 3.0V regulation limit of the circuit).

Thanks for the response,
Qben