Question about Fenix P2D Q5

[Secur1]

Hi ppl

I will probably be purchasing a P2D Q5 and while reading one of the reviews ( http://lights.lightrefineries.org/?page_id=165 ) i came across one issue i was not aware of.
Specifically that the light is unable to work properly with an RCRC123 cell and goes into direct drive under all modes.
Now that's a really problem for me as my intention was to use it in conjunction with AW's protected 3.7V RCR123.
So has this issue been resolved ?

Thanks in advance

John

 

[half-watt]

i have a P2D-CE, P2D-Q2, and P2D-Q5 - nice lights all, especially the Q5 version.

never thought of this not-being-able-to-keep-all-levels-on-unregulated-RCRs as an "issue". it is simply the design of the P2D electronics.

however, more to the point, there are two possible rechargeable routes that you can pursue.

if you go with unregulated RCR's that charge up to ~+4.2VDC, then the light will run in direct drive & you lose the lower modes (down to ~+3.7VDC, IIRC, but you should check this "number" as my "old-timers" is actin' up right 'bout now).

however (and i just verified this w/my P2D-Q5), if you go with 3.0V regulated RCR's which charge up to ~+3.35VDC, then *ALL* light levels are available.

mine are ~1000 mAh cells (Mfr. claimed). i have two types, Tysonic cells and no-name cells (though they both look identical in color and wrapper info - minus the Tysonic name on some of the cells) - both claim 1000 mAh. however, from what i've read elsewhere, many of the CPF experts are skeptical of this claim for such high capacity.

both of these "green" wrapped cells also claim to be "Protected".

BatteryJunction.com also sells some "3.0V" RCR's (they charge up to ~3.35VDC) which are similar to the ones i just tried in my light.

so, if retaining all light levels is important to you (as it is to me), then you'll want to purchase 3.0V RCR cells and not the 3.7V RCR cells (which charge up to approx. 4.12-4.20 VDC).

 

[Secur1]

Thanks for the speedy reply half-watt, so i guess i will have to get these then
Tenergy RCR123A 3.0V 900mAh to get the light working properly.
I used them before, i just wish i didn't gave them away with the Nuwai light i used to have :/
Hindsight is a b**c ain't it ?

 

[Illumination]

Different question about the P2D Q5:

Do they all "flash" when first started? I have a P2D RB-100. Once I turn it on, it does a quick flash at turbo then drops back down to the correct level. This is annoying. Does this problem still exist in the new Q5 P2Ds?

 

[Gunner12]

Well, the P3D handles RCR123s just fine, but is longer then the P2D(you know this already).

I think the flash is fixed in the newer lights. It was according to 4sevens.

 

[Secur1]

This is starting to get a bit bothersome, so not only do i have to buy different cells for this light, i also have to make sure i get the latest version.... Is there any way i can make sure i get the latest version, besides asking the shop i will be getting it to take it out and test it prior to sending ?

 

[Joshatdot]

Thanks for the speedy reply half-watt, so i guess i will have to get these then
Tenergy RCR123A 3.0V 900mAh to get the light working properly.
I used them before, i just wish i didn't gave them away with the Nuwai light i used to have :/
Hindsight is a b**c ain't it ?

Those are the same RCR's I use with my P1D CE Q5, all 5 modes work great, I love em.

 

[half-watt]

This is starting to get a bit bothersome, so not only do i have to buy different cells for this light, i also have to make sure i get the latest version.... Is there any way i can make sure i get the latest version, besides asking the shop i will be getting it to take it out and test it prior to sending ?

that turn-on flash, IMO, is really *NOT* much of an issue. it is just that a "flash" or "blink" - very short duration.

in situations where you want to compromise your current dark adaptation as little as possible (hey,...it's gonna' be compromised as a white light is being turned on with the intention of it being on for a least a second or two anyways to use it at what 12lm, IIRC, for the P2D-Q5 LO mode) there are two solutions, both of which i tried:

1) direct the bezel of the light (the "business" end) down to the ground when switching the light on.

2) close one's eyes for a quarter of a second when switching the light on.


both have worked fine for me.

i have both older P2D/L1D/L2D/P3D and much newer Q5 versions of these lights. honestly, i can't tell you which ones flash and which ones don't - it's such a minimal aspect to the use of these lights that i haven't bothered to pay att'n to which ones do it and which ones don't. proof positive, in my case at least, that both of the above mentioned numbered solutions to the issue work well.

the way i look at it is that often >99.9% of the time or >99.0% of the time for shorter duration uses (i.e. after the first 1/4sec) after activating the light, the light works precisely as i would expect it to. so, i ask myself, why should i care about that <0.1% of the time (or even 5.0% if the light is used only for maybe 5sec - still that same 1/4sec flash when the light is first turned-on). i typically call that majoring in the minors.

i wouldn't let that turn-on flash deter anyone fr/purchasing some Fenix lights.

oh,...and to put this Post in its proper perspective, this word of advice comes fr/an old, anal-retentive, OCD, everything-ought-to-be-perfect engineer!

 

[Secur1]

oh,...and to put this Post in its proper perspective, this word of advice comes fr/an old, anal-retentive, OCD, everything-ought-to-be-perfect engineer!

Umm yeah i'm one of those engineers too

Still i guess i can live with it since it's only a very brief flash.

 

[cannesahs]

I have a new P2D/L2D/L1D Q5 head (L2D light) and it doesn't have the pre-flash.

Only complaining is that I want even more light on turbo, at least 1000lumens! :sick2: