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Thread: Test/Review of Fenix 18650 ARB-L2 2600mAh (Black)

  1. #1
    HKJ's Avatar
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    Default Test/Review of Fenix 18650 ARB-L2 2600mAh (Black)

    Fenix 18650 ARB-L2 2600mAh (Black)



    Official specifications:
    • 2600mAh large capcity with outstanding performance
    • Triple overheat protection, safe and reliable
    • Built-in over charge, over discharge protection circuits
    • Circuit board has front and back protection for impact resistant
    • No memory effect, negligible self discharge
    • 3.6v 2600mAh
    • Size 18.5mm x68mm, weight 49g
    • Charging currect - Recommanded 1A, Max 2A








    The battery has a flat top, but due to the raised ring on the bottom it can be used in series.






    This battery has a high voltage at low loads and higher capacity than most other 2600 mAh rated batteries. There is also very good tracking between the batteries.















    Conclusion

    The high voltage can be an advantage in smaller (i.e. 3-4 watt) lights where the battery replaces two CR123 cells.
    With Fenix behind the battery I have no problem rating it as a good battery although it uses a unknown cell.



    Notes and links

    How is the test done and how to read the charts
    How is a protected LiIon battery constructed
    More about button top and flat top batteries
    My website with flashlight, battery and charger information: lygte-info.
    More than 200 battery reviews and 80 charger reviews.
    Compare 18650 LiIon batteries or smaller (RCR123, 16340, 14500, 10450) LiIon batteries.

  2. #2
    Flashaholic* Changchung's Avatar
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    Default Re: Test/Review of Fenix 18650 ARB-L2 2600mAh (Black)

    Thanks again HKJ.

    unknown cell???

    Their dont let you know?
    Zebralight Spark Princeton Inova Petzl Maglite Bushnell 4 XM-L MagMod and a lot of Cree XM-L Lights Nitecore i4 Intellicharger Intl-outdoor 3400 Panasonic 3100 Bare and protected Samsung 3000 Sanyo 2600
    Please, respect the planet, dont kill animals...

  3. #3
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    Default Re: Test/Review of Fenix 18650 ARB-L2 2600mAh (Black)

    Quote Originally Posted by Changchung View Post
    Thanks again HKJ.

    unknown cell???

    Their dont let you know?
    I did not ask and Fenix does not announce it.
    I bought the battery from a flashlight store.
    My website with flashlight, battery and charger information: lygte-info.
    More than 200 battery reviews and 80 charger reviews.
    Compare 18650 LiIon batteries or smaller (RCR123, 16340, 14500, 10450) LiIon batteries.

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    Flashaholic* 45/70's Avatar
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    Default Re: Test/Review of Fenix 18650 ARB-L2 2600mAh (Black)

    Using your excellent Battery Comparator, these look to be either fresher, or cells of a different source than other 2600mAh cells available. Not bad at all!

    Speaking of the Battery Comparator, is there any chance of making the data for the Samsung 18650 ICR18650-30A cells available for comparison? I was checking out the LG 18650 D1 4.35 Volt cells. I've looked at separate graphs, but it'd be cool to just use the comparator.

    Dave

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    Default Re: Test/Review of Fenix 18650 ARB-L2 2600mAh (Black)

    Quote Originally Posted by 45/70 View Post
    Speaking of the Battery Comparator, is there any chance of making the data for the Samsung 18650 ICR18650-30A cells available for comparison? I was checking out the LG 18650 D1 4.35 Volt cells. I've looked at separate graphs, but it'd be cool to just use the comparator.
    I have not tested the Samsung cell, but is is used in the Keeppower 3000 battery and you can find that in the comparator.
    I do not have a 4.35 volt trace, due to a over voltage protection at 4.34 volt.
    My website with flashlight, battery and charger information: lygte-info.
    More than 200 battery reviews and 80 charger reviews.
    Compare 18650 LiIon batteries or smaller (RCR123, 16340, 14500, 10450) LiIon batteries.

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    Flashaholic* 45/70's Avatar
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    Default Re: Test/Review of Fenix 18650 ARB-L2 2600mAh (Black)

    Ahh, that will work! You did test the Samsung 18650 ICR18650-30A at least here. And somewhere there is a thread with individual graphs for the 30A, which I can't seem to find at the moment.

    Dave

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    Default Re: Test/Review of Fenix 18650 ARB-L2 2600mAh (Black)

    Quote Originally Posted by 45/70 View Post
    Ahh, that will work! You did test the Samsung 18650 ICR18650-30A at least here. And somewhere there is a thread with individual graphs for the 30A, which I can't seem to find at the moment.
    I do not include any old test/batteries in the comparator. That is the 2011 test and I did test slightly different and with some other equipment. My current setup is the most accurate of the setups I have used.
    You can find the full 2011 test with all curves on my website and also a 2010 test.
    My website with flashlight, battery and charger information: lygte-info.
    More than 200 battery reviews and 80 charger reviews.
    Compare 18650 LiIon batteries or smaller (RCR123, 16340, 14500, 10450) LiIon batteries.

  8. #8

    Default Re: Test/Review of Fenix 18650 ARB-L2 2600mAh (Black)

    Quote Originally Posted by gopajti View Post

  9. #9

    Default Re: Test/Review of Fenix 18650 ARB-L2 2600mAh (Black)

    Yes.. Fenix use BAK li-ion battery. This is an official information from Fenix.

  10. #10
    Flashaholic* Changchung's Avatar
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    Default Re: Test/Review of Fenix 18650 ARB-L2 2600mAh (Black)

    I never ear about this BAK brand...
    Zebralight Spark Princeton Inova Petzl Maglite Bushnell 4 XM-L MagMod and a lot of Cree XM-L Lights Nitecore i4 Intellicharger Intl-outdoor 3400 Panasonic 3100 Bare and protected Samsung 3000 Sanyo 2600
    Please, respect the planet, dont kill animals...

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    Default Re: Test/Review of Fenix 18650 ARB-L2 2600mAh (Black)

    Quote Originally Posted by Changchung View Post
    I never ear about this BAK brand...
    They are a major Chinese cell manufacture, and their cells are sometimes used in OEM laptop packs. They are one of the largest in China along with ATL, and Lishen, and HYB.

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    Flashaholic* Changchung's Avatar
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    Default Re: Test/Review of Fenix 18650 ARB-L2 2600mAh (Black)

    Quote Originally Posted by jasonck08 View Post
    They are a major Chinese cell manufacture, and their cells are sometimes used in OEM laptop packs. They are one of the largest in China along with ATL, and Lishen, and HYB.
    Better than; panasonic, lg, samsung, sony, sanyo etc?
    Zebralight Spark Princeton Inova Petzl Maglite Bushnell 4 XM-L MagMod and a lot of Cree XM-L Lights Nitecore i4 Intellicharger Intl-outdoor 3400 Panasonic 3100 Bare and protected Samsung 3000 Sanyo 2600
    Please, respect the planet, dont kill animals...

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    Default Re: Test/Review of Fenix 18650 ARB-L2 2600mAh (Black)

    Quote Originally Posted by Changchung View Post
    Better than; panasonic, lg, samsung, sony, sanyo etc?
    Nope, Japan/Korea made cells are mostly superior to Chinese made cells.

  14. #14
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    Default Re: Test/Review of Fenix 18650 ARB-L2 2600mAh (Black)

    Quote Originally Posted by jasonck08 View Post
    They are a major Chinese cell manufacture, and their cells are sometimes used in OEM laptop packs. They are one of the largest in China along with ATL, and Lishen, and HYB.
    what does ATL stand for?
    aka Edgar Allan Bro, Brosama Bin Liftin, Walter Crunkite, Bro Namath, Teddy Brosevelt, and the Tomahawk Crunkmissile.
    my lights - review of PrecisionWorks - that's Gucci Mane in my avatar

  15. #15

    Default Re: Test/Review of Fenix 18650 ARB-L2 2600mAh (Black)

    Quote Originally Posted by tobrien View Post
    what does ATL stand for?
    Atlanta. jk =P

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    Default Re: Test/Review of Fenix 18650 ARB-L2 2600mAh (Black)

    Quote Originally Posted by kaabob View Post
    Atlanta. jk =P
    haha that's the city I grew up in is why I ask
    aka Edgar Allan Bro, Brosama Bin Liftin, Walter Crunkite, Bro Namath, Teddy Brosevelt, and the Tomahawk Crunkmissile.
    my lights - review of PrecisionWorks - that's Gucci Mane in my avatar

  17. #17
    Flashaholic HiltiHome's Avatar
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    Question Re: Test/Review of Fenix 18650 ARB-L2 2600mAh (Black)

    Quote Originally Posted by gopajti View Post
    Yes.. Fenix use BAK li-ion battery. This is an official information from Fenix.
    Do You have any evidence, or link to "official information" ?

    May be Fenix uses BAK cells, but judging from the vent-holes, it looks like Samsung cell.

    I doubt, that BAK cell could outperform nearly all competitors in the 2600mAh class,
    but that is exactly what HKJs tests show for Fenix 18650 battery.


    Right now we are doing own tests @ German messerforum.net
    Hope we'll have it done till weekend.

  18. #18

    Default

    let us know the results of the test. the curves do look very consistent

  19. #19
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    Default Re: Test/Review of Fenix 18650 ARB-L2 2600mAh (Black)

    Quote Originally Posted by Changchung View Post
    Better than; panasonic, lg, samsung, sony, sanyo etc?
    These particular 2600's seem to preform very well for 2600's. However generally speaking Japanese cells are still going to be regarded as being overall higher quality. The Japanese cell companies have been around for longer than the Chinese cell companies, produce many more cells and obviously have larger R&D budgets.

    Quote Originally Posted by Shadowww View Post
    Nope, Japan/Korea made cells are mostly superior to Chinese made cells.
    Generally, but these cells seem to do quite well, I'm not going to lie. But time will tell if they hold up as good cycle wise.


    Quote Originally Posted by tobrien View Post
    what does ATL stand for?
    Amperex Technology Limited.

    Quote Originally Posted by HiltiHome View Post
    May be Fenix uses BAK cells, but judging from the vent-holes, it looks like Samsung cell.

    I doubt, that BAK cell could outperform nearly all competitors in the 2600mAH class,
    It's not a Samsung cell based on the positive end and also the discharge graphs, or any other major Japanese / Korean companies cell, so I assume it is a BAK cell. Also keep in mind that most of the 2600mAH cells on the market from major Japanese / Korean companies have seen little if any development in the last 5 years or so, since the cells were released. The attention of these major battery companies has been focused on higher capacity cells. So it is entirely possible that a Chinese company could have developed a pretty good cell.

    I don't have much experience with BAK, but I did have one cell die in an 6 cell pack a while back. It was a 2200mAH, but I'm not sure if it was the cells fault or the BMS's. Either way though, I'm sure Fenix did their homework, and is offering a good cell.
    Last edited by jasonck08; 06-04-2012 at 11:41 PM.

  20. #20
    Flashaholic* candle lamp's Avatar
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    Default Re: Test/Review of Fenix 18650 ARB-L2 2600mAh (Black)

    Another great test review. Thanks a lot for your time & effort as always. HKJ!

    This battery looks very nice cell.

    Your review is very useful to all of CPF. Please keep doing your great work.

    KH
    Latest Review : Acebeam K40M Review

  21. #21
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    Default Re: Test/Review of Fenix 18650 ARB-L2 2600mAh (Black)

    Fenix advertises "safe and reliable". Can we reliably depend on the safety features?

  22. #22

    Default Re: Test/Review of Fenix 18650 ARB-L2 2600mAh (Black)

    Great review.Thanks

  23. #23
    Flashaholic* LEDAdd1ct's Avatar
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    Default Re: Test/Review of Fenix 18650 ARB-L2 2600mAh (Black)

    Quote Originally Posted by snakyjake View Post
    Fenix advertises "safe and reliable". Can we reliably depend on the safety features?
    Only time and user experience will tell.
    "...and the diode multiplied and grew in brightness. And God saw that it was good."

  24. #24
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    Default Re: Test/Review of Fenix 18650 ARB-L2 2600mAh (Black)

    I've reported Fenix's safety claim to the FTC & CPA for public safety concerns and questions. I look forward to hearing their conclusion...presuming they follow-up to my inquest.

  25. #25
    Flashaholic* tobrien's Avatar
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    Default Re: Test/Review of Fenix 18650 ARB-L2 2600mAh (Black)

    Quote Originally Posted by snakyjake View Post
    I've reported Fenix's safety claim to the FTC & CPA for public safety concerns and questions. I look forward to hearing their conclusion...presuming they follow-up to my inquest.
    what?
    aka Edgar Allan Bro, Brosama Bin Liftin, Walter Crunkite, Bro Namath, Teddy Brosevelt, and the Tomahawk Crunkmissile.
    my lights - review of PrecisionWorks - that's Gucci Mane in my avatar

  26. #26
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    Default Re: Test/Review of Fenix 18650 ARB-L2 2600mAh (Black)

    will these work in all their 18650 lights including the older ones? Or might you need to put a magnet on the flat top?

  27. #27
    HKJ's Avatar
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    Default Re: Test/Review of Fenix 18650 ARB-L2 2600mAh (Black)

    Quote Originally Posted by Blackbeard View Post
    will these work in all their 18650 lights including the older ones? Or might you need to put a magnet on the flat top?


    Look at the plus connection in then light, if it has a spring or a small bump it will work with flat top batteries.
    My website with flashlight, battery and charger information: lygte-info.
    More than 200 battery reviews and 80 charger reviews.
    Compare 18650 LiIon batteries or smaller (RCR123, 16340, 14500, 10450) LiIon batteries.

  28. #28
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    Default Re: Test/Review of Fenix 18650 ARB-L2 2600mAh (Black)

    Anybody using this on their Fenix? I got a few and I'm using them on my TK21. Seems to be pretty good and decent runtime on turbo mode.
    "I am the light of the world. Whoever follows me will never walk in darkness, but will have the light of life." John 8:12

  29. #29

    Default Re: Test/Review of Fenix 18650 ARB-L2 2600mAh (Black)

    more precisely,

    Fenix ARB-L2 = BAK C18650CC (2600mAh) max discharge: 5.2A



    Sanyo UR18650FM, 2600mAh (Unprotected) vs BAK C18650CC, 2600mAh (Unprotected)

    discharge until 3V with 2A
    Sanyo: 2480mAh
    BAK: 2503mAh

    3A
    Sanyo: 2473mAh
    BAK: 2552mAh

    5A
    Sanyo: 2432mAh
    BAK: 2465mAh

    Source: Dampfakkus

  30. #30

    Default Re: Test/Review of Fenix 18650 ARB-L2 2600mAh (Black)






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