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Thread: Test/Review of EagleTac 18650 3100mAh (Black)

  1. #1
    HKJ's Avatar
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    Default Test/Review of EagleTac 18650 3100mAh (Black)

    EagleTac 18650 3100mAh (Black)



    Official specifications:
    • 3100mAh IC PROTECTED Rechargeable Cell (takes the place of 2-R123 cells in some applications) (4.2V hot off charger)
    • Uses newest Panasonic 3100mAh LiNiCoAlO2 cells, made in Japan
    • This is the shortest ultra high capacity 18650 ever made WITH protrude top button!
    • Measures only 68mm in height (+/-0.1mm) and 18.5mm in width
    • IC protected for a) over-charge, b) over-discharge, c) short circuit, d) current overflow of 5A+
    • True protrude top design, fits all flashlights
    • High discharge rate 4A-5A
    • Nominal voltage: 3.7V, charge up to 4.2V, use CC/CV charger to charge
    • Reinforced steel plate bottom, highly efficient protective PCB design
    • Packaged in individual box and anti-static bag





    The cell used can be discharged down to 2.5 volt, in my test I only discharges to 2.8 volt, i.e. I do not measure the full capacity. But then, not all lights will be able to use the full capacity.




















    The two batteries does not have the same current limit, on trips at 6 ampere the other at 6.5 ampere.
    The current limit is placed low enough to prevent overloading the cell, this is very good for people that want maximum battery lifetime without any risk of accidents, but not for people that want to play with high current direct drive configurations.





    Conclusion

    This battery uses a good cell, this secures many things:
    • The batteries does match in capacity, i.e. they can be used in series.
    • The battery is very safe.
    • The battery has the specified capacity (But only when tested at the specified conditions).



    All in all a very good battery.



    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* RI Chevy's Avatar
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    Default Re: Test/Review of EagleTac 18650 3100mAh (Black)

    I wonder why the cell uses a different button top than the other Panasonic cells?

  3. #3
    HKJ's Avatar
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    Default Re: Test/Review of EagleTac 18650 3100mAh (Black)

    Quote Originally Posted by RI Chevy View Post
    I wonder why the cell uses a different button top than the other Panasonic cells?
    Probably to make the batteries as short as possible.
    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.

  4. #4
    Flashaholic* Sparky's Magic's Avatar
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    Default Re: Test/Review of EagleTac 18650 3100mAh (Black)

    @HKJ: Thank you for an excellent, helpful and very professional review.

    Cheers.

  5. #5
    Flashaholic* RI Chevy's Avatar
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    Default Re: Test/Review of EagleTac 18650 3100mAh (Black)

    Quote Originally Posted by HKJ View Post
    Probably to make the batteries as short as possible.
    Most of the other cell makers that use the NCR18650A use the large, low flat type of button top. I thought that was pretty flat. But thanks for the review.

  6. #6
    HKJ's Avatar
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    Default Re: Test/Review of EagleTac 18650 3100mAh (Black)

    Quote Originally Posted by RI Chevy View Post
    Most of the other cell makers that use the NCR18650A use the large, low flat type of button top. I thought that was pretty flat.
    It is not, try checking the comparison thread, there is only one 3100 battery that is shorter than this and it is a flattop (At the current time).
    Last edited by HKJ; 02-12-2012 at 11:45 AM.
    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.

  7. #7
    Flashaholic
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    Default Re: Test/Review of EagleTac 18650 3100mAh (Black)

    Awesome, I was looking at these Eagletac 18650s for a while. Thanks!

  8. #8
    Flashaholic* orbital's Avatar
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    Default Re: Test/Review of EagleTac 18650 3100mAh (Black)

    +

    Perfect button top NCR18650A, {not to mention possibly the shortest}
    I'v been using three EagleTac 3100s' the last 5 weeks,...they are damn good!

    yep

  9. #9
    Flashaholic* madecov's Avatar
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    Default Re: Test/Review of EagleTac 18650 3100mAh (Black)

    These cells should work well in lights that can not use flat top cells
    In god we trust.........all others are suspects
    There are no problems in life that can not be solved with high explosives or small arms
    Too many new lights to list

  10. #10
    HKJ's Avatar
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    Default Re: Test/Review of EagleTac 18650 3100mAh (Black)

    Quote Originally Posted by madecov View Post
    These cells should work well in lights that can not use flat top cells
    Mostly, but notice that the button top is a very low button top. There might be a light or two (But not many) that has problems with that.
    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.

  11. #11
    Flashaholic chewy78's Avatar
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    Default Re: Test/Review of EagleTac 18650 3100mAh (Black)

    they work ok in all my lights but had a problem with a pcb on one of them.
    Last edited by chewy78; 03-26-2012 at 01:34 PM.

  12. #12
    Flashaholic* madecov's Avatar
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    Default Re: Test/Review of EagleTac 18650 3100mAh (Black)

    Quote Originally Posted by HKJ View Post
    Mostly, but notice that the button top is a very low button top. There might be a light or two (But not many) that has problems with that.
    My Eagletac T20C2 MKII (XML) will not work with AW, Callies or Redilast 3100's. It works great with the Eagletac brand cells. My Maelstrom X7 works with the other cells intermittently, but is reliable with the Eagletacs.
    In god we trust.........all others are suspects
    There are no problems in life that can not be solved with high explosives or small arms
    Too many new lights to list

  13. #13

    Default Re: Test/Review of EagleTac 18650 3100mAh (Black)

    I feel the Ultrafire battery is the best for durability, long life and runtimes

  14. #14

    Default Re: Test/Review of EagleTac 18650 3100mAh (Black)

    Seem not that good according to the graphs

  15. #15
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    Default Re: Test/Review of EagleTac 18650 3100mAh (Black)

    Maybe we should stop with all the good comments about Eagletac batteries before they jack the price up on us.

    I switched from AW to Eagletac based on the way they charge and the price. Glad I did. So far I am very pleased with this battery. I have 4 more 18650's coming to me in the mail as I type.

    And I can get them here in Canada so I don't have to worry about the shipping crap issues right now.
    Fenix TK35/TK21 U2/PD32/LD12/E01/ Romisen RC-T602/ Klarus XT2C/ EagleTac D25LC2 Clicky, Thrunite TN31. , Olight s10, Eagletac D25LC2 factory mod XP-G2 with 2amp driver. Eagletac D25C Ti XM-L U2, D25C ti XP-G2

  16. #16
    Flashaholic* Sparky's Magic's Avatar
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    Default Re: Test/Review of EagleTac 18650 3100mAh (Black)

    Picked up a couple of the current EagleTac 3100mAh. Cells (white wrapper) & couldn't be happier! They come off my Pila charger at 4.19V. fit all my 'lights, which the Panasonic (black) don't and give superior run-time. A couple of AW3100's with about a dozen cycles are still coming off at 4.11V...., so I changed ship! The E/T's are considerably cheaper as well.

  17. #17

    Default Re: Test/Review of EagleTac 18650 3100mAh (Black)

    Quote Originally Posted by Sparky's Magic View Post
    Picked up a couple of the current EagleTac 3100mAh. Cells (white wrapper) & couldn't be happier! They come off my Pila charger at 4.19V. fit all my 'lights, which the Panasonic (black) don't and give superior run-time. A couple of AW3100's with about a dozen cycles are still coming off at 4.11V...., so I changed ship! The E/T's are considerably cheaper as well.
    My Eagletac 18650 3100mAh are white too and I am as pleased as you are.

  18. #18

    Default Re: Test/Review of EagleTac 18650 3100mAh (Black)

    Quote Originally Posted by sidecross View Post
    My Eagletac 18650 3100mAh are white too and I am as pleased as you are.
    Where did you buy your WHITE wrapped Eagletac 18650mah from?

  19. #19

    Default Re: Test/Review of EagleTac 18650 3100mAh (Black)

    Quote Originally Posted by lovemylexicon View Post
    Where did you buy your WHITE wrapped Eagletac 18650mah from?
    I bought my Eagletac 18650 3100mAh batteries along with their G25C flashlight from Eaglletac.

  20. #20
    Flashaholic
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    Default Re: Test/Review of EagleTac 18650 3100mAh (Black)

    Quote Originally Posted by lovemylexicon View Post
    Where did you buy your WHITE wrapped Eagletac 18650mah from?
    I think someone said they were getting them from goinggear.com, even though the website shows the black one's.
    ΜΟΛΩΝ ΛΑΒΕ

  21. #21
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    Default Re: Test/Review of EagleTac 18650 3100mAh (Black)

    Quote Originally Posted by Sparky's Magic View Post
    Picked up a couple of the current EagleTac 3100mAh. Cells (white wrapper) & couldn't be happier! They come off my Pila charger at 4.19V. fit all my 'lights, which the Panasonic (black) don't and give superior run-time. A couple of AW3100's with about a dozen cycles are still coming off at 4.11V...., so I changed ship! The E/T's are considerably cheaper as well.
    I'm about to buy these in Amazon, but the picture has two color versions and they definitely look different in sizes:

    http://www.amazon.com/gp/product/B00...=ALB8TTJASFG7L

    I'm buying these for a couple of Trustfire XM-L T6 LED torches.

  22. #22
    Flashaholic* ChrisGarrett's Avatar
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    Default Re: Test/Review of EagleTac 18650 3100mAh (Black)

    Quote Originally Posted by visayan View Post
    I'm about to buy these in Amazon, but the picture has two color versions and they definitely look different in sizes:

    http://www.amazon.com/gp/product/B00...=ALB8TTJASFG7L

    I'm buying these for a couple of Trustfire XM-L T6 LED torches.
    They're the same Panasonic NCR18650A cell made in Japan. The creme colored wrapper in the 'new version'.

    I've got two from March, with the black and silver wrapper.

    They tested out pretty well according to HKJ. Not the best, but not the worst.

    Chris
    Convoy: S2, M1, M2, Fenix: P1D, PD32, HL30, ET: D25C Ti, SF: 6P, ZL: SC-600, Klarus: P2A, Jetbeam: BA-20, Icon: Rogue 1, L3: L10, Xeno: E03, ShiningBeam: I-Mini, Olight: i3s, SWM: D40A, M11R, V11R, Maglite: 6Ds, Mini-Mags, Solitaires, LaCrosse BC-700, Maha C-9000, XTAR VP2, WP2 II.

  23. #23
    Enlightened ouchyfoot's Avatar
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    Default Re: Test/Review of EagleTac 18650 3100mAh (Black)

    Quote Originally Posted by RI Chevy View Post
    I wonder why the cell uses a different button top than the other Panasonic cells?
    Eagletac designed their lights so they only accept the small nipple top. That way you have to buy their batteries. These are the only batteries I buy now because they run in all lights. I couldn't get my nitecore EC2 and a couple other lights running on flattops or button tops, but the Eagletac nipple tops powered them right up.

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