longest running AAA light?

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sbslider
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Second test complete on the worm. 34.5 hours on a 4 year old alkaline battery, same vintage and starting voltage (1.53V) as used in the fenix LD01 test. Fenix made it 38.5 hours, I was hoping the worm would match it. I am confident with a new alkaline it would meet or beat the vendor specified 36 hours.

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sbslider
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Here is one thing I love about alkaline batteries. My worm was off, dead off after a 34 hour run on an alkaline on low. When I tried to turn it on a several minutes later, nothing. Let the battery sit a couple hours, it started working again. I used the light this evening a few times during a walk with my wife, including a few times on medium. I turned it on low to see how much more I could get out of the battery, 60 minutes later it is still shining at full illumination on low mode (3 lumens).

This aspect did beat the Fenix, as the LD01 only ran 40 minutes after it shut off due to first end of alkaline battery life. This is making me wonder if part of the reason the worm had less life is it was in a cold room most of the last 10 hours of life, then outside on a cold morning. The fenix was in my pocket nice and warm at the end of its life.

For low power use, alkalines can deliver as well as and sometimes better than rechargables or lithium primaries.  No worry about damaging it, as you will throw it away anyway.  And the price is hard to beat in decent quantity.  Yes, the rechargable will get more uses, they have their place for sure, especially higher power levels. 

I definitely would not perform brain surgery with 3 lumens of light, but it will get you where you need to go if you are walking or looking for something under a piece of furniture, or many other simple tasks I use flashlight. I like rechargables also, but alkalines definitely have a place in my flashlight power cache. And no, I have not had an alkaline leak and ruin a light or other electronic device in the past 20 years. I know it happens, but not in 805 . . . (yet . . .)  

Final update for this battery, got 45 minutes this morning, then another 30 minutes in the early afternoon.  It just keeps on giving . . . 

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sbslider
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Motivated by another thread I did another run time test, this time with alkaleak batteries. One light was the long run standby my Manker E01, and the other my E02. They both got cells that were a few years old and measuring 1.58V. Both lights were measuring about 4mA of current draw from the cells at the beginning of the tes.

The E02 lasted 8 days, 6 hours plus before it gave up. It ran regulated the whole time, and was at level 7 in moonlight mode. It died somewhere in the next 8 hours. The last time I measured the battery it was at 0.86V. 198 hrs of observed performance off an older alkileak. Not bad.

The E01 went well beyond. It is not regulated in moonlight mode, but ran 12 days plus, nearly 300 hours. Last time I measured the cell before it quit was about 0.9V.

And another data point, while likely not a super long run time, the Sofirn C01 is currently running off a cell measuring less than 0.6V and putting out as much light as either Manker above. We’ll see if that one is still running in the morning.

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chadvone
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Some good info, I may sacrifice some primary and test some of my lows

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sbslider wrote:
This is making me wonder if part of the reason the worm had less life is it was in a cold room most of the last 10 hours of life, then outside on a cold morning. The fenix was in my pocket nice and warm at the end of its life.

The E02 lasted 8 days, 6 hours plus before it gave up. It ran regulated the whole time, and was at level 7 in moonlight mode. It died somewhere in the next 8 hours. The last time I measured the battery it was at 0.86V. 198 hrs of observed performance off an older alkileak. Not bad.

The E01 went well beyond. It is not regulated in moonlight mode, but ran 12 days plus, nearly 300 hours. Last time I measured the cell before it quit was about 0.9V.


thanks for all your info
yes, temperature matters
and when you say E01 above, do you mean Manker or Fenix, and if manker E01 is that stock or modified inductor?

maybe at some point you can summarize your data for each light.. Im getting very confused sorting through the text

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jon_slider wrote:
sbslider wrote:
This is making me wonder if part of the reason the worm had less life is it was in a cold room most of the last 10 hours of life, then outside on a cold morning. The fenix was in my pocket nice and warm at the end of its life.

The E02 lasted 8 days, 6 hours plus before it gave up. It ran regulated the whole time, and was at level 7 in moonlight mode. It died somewhere in the next 8 hours. The last time I measured the battery it was at 0.86V. 198 hrs of observed performance off an older alkileak. Not bad.

The E01 went well beyond. It is not regulated in moonlight mode, but ran 12 days plus, nearly 300 hours. Last time I measured the cell before it quit was about 0.9V.


thanks for all your info
yes, temperature matters
and when you say E01 above, do you mean Manker or Fenix, and if manker E01 is that stock or modified inductor?

maybe at some point you can summarize your data for each light.. Im getting very confused sorting through the text


the light I have is the Manker E01

Manker E01 ran for ~294 hours on a AAA battery that had a starting voltage of 1.58V. The battery was about 3 years old, but not used. The test was on the lowest mode, called firefly by Manker on the page linked above. IMO, the light output was sufficient to navigate around a dark house until it went out.

Manker E02 ran for ~ on 198 hours a AAA battery that had a starting voltage of 1.58V. The battery was about 3 years old, but not used. The test was on the lowest mode, called moonlight by Manker on their product page. The moonlight mode has 14 sub levels within moonlight mode, mine was set at level 7.

I did not go back and research my older run time tests, sorry about that. None of those approached the run time of these two tests. Both lights were inside my home the entire time, ambient temperature between high 50s and low 70s Fahrenheit.

Sorry for any confusion my post caused, hope this is more clear.

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jon_slider wrote:
sbslider wrote:
This is making me wonder if part of the reason the worm had less life is it was in a cold room most of the last 10 hours of life, then outside on a cold morning. The fenix was in my pocket nice and warm at the end of its life.

The E02 lasted 8 days, 6 hours plus before it gave up. It ran regulated the whole time, and was at level 7 in moonlight mode. It died somewhere in the next 8 hours. The last time I measured the battery it was at 0.86V. 198 hrs of observed performance off an older alkileak. Not bad.

The E01 went well beyond. It is not regulated in moonlight mode, but ran 12 days plus, nearly 300 hours. Last time I measured the cell before it quit was about 0.9V.


thanks for all your info
yes, temperature matters
and when you say E01 above, do you mean Manker or Fenix, and if manker E01 is that stock or modified inductor?

maybe at some point you can summarize your data for each light.. Im getting very confused sorting through the text

DITTO.
Thanks for the test.
Jerry

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After reading through this I can see the data is likely a bit confusing. Some the data in the OP was from other folks posting in the thread, and they did not specify a battery type.

Alkileak batteries give more life in general in the lights tested, as they can run down to lower voltage and not kill the cell. They also have more capacity than eneloop of the same form factor (AAA for this thread).

Listed in longest running light to shortest on alkileak tested by me. Tested on the lowest mode. for the Manker E02, see my note above regarding sub levels in the lowest mode.
Manker E01, 294 hours
Manker E02, 196 hours
Fenix LD01 32 hours

Measured on eneloop AAA
Manker E01 200 hours
Fenix LD01 ~34 hours
Lumintop brass worm 31 hours on eneloop
Thorefire PF03 with 750mAh eneloop, between 26 and 27 hours

Hope that helps.

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sbslider wrote:
… alkileak

Manker E01, 294 hours

eneloop AAA
Manker E01 200 hours

thanks!:-)
so, at the end of both tests the light went completely dark, correct?
and, what was the voltage on each battery when the light went dark?

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sbslider
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Hmm, not quite. I ended the eneloop test at 200 hours because the eneloop voltage got down to 1.16V. I did not want to damage the eneloop. I could redo the test and see, as I have a few spares presently

The alkileak test, that last time I measured the voltage it was 0.94V. When I got up the next day the light was out, so I don’t know what voltage the light cut out at.

Just to add to the confusion, I recently put one of those dead alkileaks in my C01, and it ran for another 4 hours +. The battery measured 1V when I put it in. When I removed the battery in the morning (went to bed after 4 hours of the light being on) the voltage was less than 0.6V and slowly rising. The C01 is a battery vampire for sure!!

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thanks for sharing info Smile

enjoy your lights!

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The Manker E01 is the same flashlight as the Astrolux/BLF A01 with the old Manker driver (NoPWM version), isn’t it?

(new Astrolux A01 use a different driver that uses PWM on medium mode)

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