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Thread: Quark Mini AA WW Lo-mode Runtime - can we compare notes?

  1. #1
    Flashaholic* rookiedaddy's Avatar
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    Au Quark Mini AA WW Lo-mode Runtime - can we compare notes?

    Would like to ask if anyone has done a runtime test on Lo-Mode of Quark Mini AA warm white?
    Using Eneloop AA, my 1st test is 27.5 hours, and I've just finished the 2nd test which gives 27.8 hours. This is quite unexpected from the claimed 60 hours.

    The light start to have diminishing brightness at hour 27 onwards. Freshly charged battery (1.44V) was used and test run until light shuts off (0.8xxV, xx because the Voltage is rebounding while taking the reading).

    At ~hour 27.7, the brightness compare to Quark AA² XP-E NW on moon-mode...


    Can we compare notes?

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    Flashaholic* SuperTrouper's Avatar
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    Default Re: Quark Mini AA WW Lo-mode Runtime - can we compare notes?

    Interesting thread. I'd be interested in seeing if anyone has tried a runtime on low on the regular R5 version of the mini AA.

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    *Flashaholic* Sgt. LED's Avatar
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    Default Re: Quark Mini AA WW Lo-mode Runtime - can we compare notes?

    What were the results of your alkaline runtime test?
    You did do one right?

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    Flashaholic* rookiedaddy's Avatar
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    Default Re: Quark Mini AA WW Lo-mode Runtime - can we compare notes?

    Quote Originally Posted by Sgt. LED View Post
    What were the results of your alkaline runtime test?
    You did do one right?
    coming... i'm doing one with Panasonic Evolta alkaline... just passed 18.5 hours...

  5. #5

    Default Re: Quark Mini AA WW Lo-mode Runtime - can we compare notes?

    This is interesting since many reviews tend to skip the lowest mode runtimes. Waiting forward to the alkaline results..

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    Flashaholic* rookiedaddy's Avatar
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    Default Re: Quark Mini AA WW Lo-mode Runtime - can we compare notes?

    using Panasonic Evolta, runtime just passed 31.5 hours... and still going at what seems to be full lo-mode brightness. let's see if it will reach the 60 hours mark or beyond...

    EDIT: btw, using Eneloop AA, running on Hi-mode, I get approx. 150 minutes of runtime (I stopped the test when it reach a brightness lower than Quark's moon-mode), with the light start to have diminishing output at approx. 100 minutes mark...
    Last edited by rookiedaddy; 07-19-2010 at 05:54 PM.

  7. #7

    Default Re: Quark Mini AA WW Lo-mode Runtime - can we compare notes?

    Quote Originally Posted by rookiedaddy View Post
    Would like to ask if anyone has done a runtime test on Lo-Mode of Quark Mini AA warm white?
    Using Eneloop AA, my 1st test is 27.5 hours, and I've just finished the 2nd test which gives 27.8 hours. This is quite unexpected from the claimed 60 hours.

    The light start to have diminishing brightness at hour 27 onwards. Freshly charged battery (1.44V) was used and test run until light shuts off (0.8xxV, xx because the Voltage is rebounding while taking the reading).

    At ~hour 27.7, the brightness compare to Quark AA² XP-E NW on moon-mode...

    Can we compare notes?
    Are you using the 2 Ah Eneloop? They may have done their test using a 2.7Ah one... I couldn't find any info on their site.

  8. #8

    Default Re: Quark Mini AA WW Lo-mode Runtime - can we compare notes?

    I can't wait to see your results for low on alkaline. I'm close to buying a mini AA myself but was disappointed to see no one else had done a runtime test for low.

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    *Flashaholic* StarHalo's Avatar
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    Default Re: Quark Mini AA WW Lo-mode Runtime - can we compare notes?

    No one's done a runtime test on low because it's not all that relevant - tiny differences in Vf/manufacturing cause big differences in runtime at low currents. If you had many copies of the Quark, you'd find a range of difference of roughly 20% in their low-mode runtimes. So whatever your final numbers are, they'll only serve as rough guidelines in regards to other Quarks..

    And I've run my Quark Mini AA WW nonstop on high using an Energizer Lithium a couple times, in both instances it almost made it to four hours, which concurs with Selfbuilt's test numbers.

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    Flashaholic* rookiedaddy's Avatar
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    Default Re: Quark Mini AA WW Lo-mode Runtime - can we compare notes?

    Quote Originally Posted by red02 View Post
    Are you using the 2 Ah Eneloop? They may have done their test using a 2.7Ah one... I couldn't find any info on their site.
    hi red02, these are 2000mAh Eneloop that I'm using.

    Edit: small update... it's now 37 hours...
    ISO-80, f/2.7, Exp. 1/100

    Left is Quark AA² XP-E NW, right is Mini AA ww,

    Note: Just fyi, the 1st pic is taken with 1 sec exposure setting.
    Last edited by rookiedaddy; 07-19-2010 at 11:06 PM.

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    Flashaholic MojaveMoon07's Avatar
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    Default Re: Quark Mini AA WW Lo-mode Runtime - can we compare notes?

    Quote Originally Posted by StarHalo View Post
    And I've run my Quark Mini AA WW nonstop on high using an Energizer Lithium a couple times, in both instances it almost made it to four hours, which concurs with Selfbuilt's test numbers

    Honestly, I'm not trying to split hairs or be annoying. I wanted to point out that in his review (link), on a Energizer e2 Lithium (L91) battery selfbuilt measured a runtime on high of 3hr 35min to 50%

    link to graph: http://i243.photobucket.com/albums/f...niAA-HiL91.gif

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    *Flashaholic* StarHalo's Avatar
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    Default Re: Quark Mini AA WW Lo-mode Runtime - can we compare notes?

    Quote Originally Posted by MojaveMoon07 View Post
    Honestly, I'm not trying to split hairs or be annoying. I wanted to point out that in his review (link), on a Energizer e2 Lithium (L91) battery selfbuilt measured a runtime on high of 3hr 35min to 50%
    Right, but there's no way to tell what's 50% by the eye if you're using the flashlight as a light source; the higher the output mode, the less the Vf/manufacturing differences come into play, so I'd say 3:35 is probably very accurate.

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    Flashaholic* rookiedaddy's Avatar
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    Default Re: Quark Mini AA WW Lo-mode Runtime - can we compare notes?

    just passed 42.5 hours...

  14. #14

    Default Re: Quark Mini AA WW Lo-mode Runtime - can we compare notes?

    Heh, seems like that alkaline beats eneloop by quite a bit at that discharge current.

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    Flashaholic* rookiedaddy's Avatar
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    Default Re: Quark Mini AA WW Lo-mode Runtime - can we compare notes?

    56 hours...

    some time between 48-56 hours, brightness drop to lower than Quark's moon-mode, I guess I can still use this brightness at really really close range (map reading?) and in pitch black environment... but will let it run down or 'till it reaches 60 hours mark...

    EDIT: fwiw, while taking the picture, from my camera LCD display, I can see there is a slow pulsing from the MiniAA LED...
    Last edited by rookiedaddy; 07-20-2010 at 06:41 PM.

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    *Flashaholic* Sgt. LED's Avatar
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    Default Re: Quark Mini AA WW Lo-mode Runtime - can we compare notes?

    And that's about what I figured.
    The best learning comes from doing!

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    Flashaholic* rookiedaddy's Avatar
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    Default Re: Quark Mini AA WW Lo-mode Runtime - can we compare notes?

    Quote Originally Posted by Sgt. LED View Post
    The best learning comes from doing!
    yup... i never thought an alkaline at this discharge rate has twice the runtime compare to Eneloop.

  18. #18
    Flashaholic* rookiedaddy's Avatar
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    Default Re: Quark Mini AA WW Lo-mode Runtime - can we compare notes?

    ok... manually stop at 60 hours + 5 minutes...
    no leaky battery...

    a pic of the LED brightness at 60 hours... sorry, low quality pic... still dunno how to adjust the camera settings for best picture capture using my phone...


    if anyone else is doing similar testing, appreciate your sharing of testing results...

  19. #19
    *Flashaholic* Burgess's Avatar
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    Default Re: Quark Mini AA WW Lo-mode Runtime - can we compare notes?

    Very Interesting Thread here !

    ___



    Here are MY results.

    4Sevens Q-MiNi AA (warm-white) XP-G Q5 emitter.
    Fresh-outta'-the-package Maxell Alkaline cell, testing 1.615volt, (no load).

    Relative Brightness tested using my (30 year old) Minolta AutoFlash Meter III (digital)


    Start of test ---------- 100 % Brightness

    32 Hours -------------- 100 %

    33.33 Hours ---------- Brightness has dropped 0.3 f/stop. Still 80 %

    34.33 Hours ---------- Brightness has dropped 1 f/stop. That's 50 %


    *** test concluded ***

    Was NOT interested in running past 50 %. This told me what i wanted to know.


    Note: Company's published run-times were stated to be with "the included battery".
    That would be a Duracell Coppertop Alkaline. (made in China)

    i *believe* they stated run-times to be "to 50 %" of original brightness.


    Thank you to everyone who shares our interest in these LOW tests !



    _

  20. #20
    *Flashaholic* Burgess's Avatar
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    Default Re: Quark Mini AA WW Lo-mode Runtime - can we compare notes?

    Quote Originally Posted by red02 View Post

    Are you using the 2 Ah Eneloop?
    They may have done their test using a 2.7Ah one... I couldn't find any info on their site.

    You have made this statement, both here, and elsewhere.

    It is incorrect.

    There IS no Eneloop with 2.7Ah capacity.

    Perhaps you are confusing it with a Sanyo 2700 NiMH cell ? ? ?

    Those are NOT Eneloops. Those are NOT "low-self-discharge" cells.


    Hope we can avoid any further confusion on this matter.


    _

  21. #21
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    Default Re: Quark Mini AA WW Lo-mode Runtime - can we compare notes?

    4sevens has stated before that the ratings they list are for the batteries they ship with -- a Duracell alkaline in this case.

    Quote Originally Posted by StarHalo View Post
    No one's done a runtime test on low because it's not all that relevant - tiny differences in Vf/manufacturing cause big differences in runtime at low currents. If you had many copies of the Quark, you'd find a range of difference of roughly 20% in their low-mode runtimes. So whatever your final numbers are, they'll only serve as rough guidelines in regards to other Quarks..
    Keep in mind the MiNis are using PWM, not lower drive currents.

  22. #22
    *Flashaholic* Flying Turtle's Avatar
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    Default Re: Quark Mini AA WW Lo-mode Runtime - can we compare notes?

    Thanks for doing this testing, Rookie. I was curious about its runtime, too. Most of the time I'm using it on low. I have noticed that it seems to be an very good battery vampire, able to refire at low voltage.

    Geoff

  23. #23

    Default Re: Quark Mini AA WW Lo-mode Runtime - can we compare notes?

    This thread prompted me to do my own run time test on my Quark Mini AA WW on lo-mode. My test was a bit limited; I only have a stopwatch. Running on a duraloop, a 2000mah that I made sure was fully charged, low mode lasted 28 hours. The light turned off somewhere in the 29th hour.

  24. #24
    Flashaholic* rookiedaddy's Avatar
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    Default Re: Quark Mini AA WW Lo-mode Runtime - can we compare notes?

    thanks guys...

    I like these lo-mode runtime data too. I am doing lo-mode runtime testing on other flashlights that I have and will create a new thread to collect the data. These are useful to me in case of emergency...

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