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Bench Test Results: EBAT 30A 3000mAh 20700...a genuine 30A battery, same as iJoy/Efest/Ampking

Discussion in 'Batteries and Chargers' started by Mooch, Jul 15, 2017.

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  1. Mooch

    Mooch Electron Wrangler Verified Member ECF Veteran

    Supporting member
    May 13, 2015
    While the test results are hard data, the conclusions and recommendations I make based on these tests are only my personal opinion based on my criteria for setting a rating. Carefully research any cell you are considering using before purchasing. You are responsible for your safety.

    Testing cells at their limits is dangerous and should never, ever, be attempted by anyone who has not thoroughly studied the dangers involved and how to minimize them.

    If the cell has only one current rating number on it, or if it says "max" then I have to assume that the company is stating that the cell can be discharged at that current level in any way, including continuously.

    IMG_5735.JPG IMG_5736.JPG IMG_5737.JPG IMG_5738.JPG IMG_5740.JPG


    Bottom Line
    While this cell lists the true 30A continuous current rating on the wrap it also has a useless “Max Pulse Discharge” rating of 40A on the other side of the wrap. Without knowing the length of the pulses, the time between them, and the criteria used to set the rating (voltage sag? vaping time? temperature?) the rating is useless.

    This is a shame as it appears to be the same cell as the iJoy, Ampking, and Efest 20700's. The EBAT uses a plastic top ring insulator though versus the paper insulator on the iJoy and Ampking. This might make a difference to those who often get e-liquid on the battery.

    Three of the six EBAT’s I tested didn't perform quite as well as the others though. This same performance variation seems to exist for the cells from all the companies wrapping this 20700. I don’t think these variations would be noticeable while vaping though as they are small at 3.2V and higher.

    I am very happy to report that this cell doesn’t say "IMR" anywhere on the wrap. Since these 20700’s do not use the battery chemistry often associated with the “IMR” model number prefix there is no reason to have “IMR” on the wrap like the Efest cell does.

    I am rating this EBAT at 30A and 3000mAh. Its maximum vaping amps (MVA) rating is 40A, limited by temperature.

    Six cells were donated by EBAT for the purpose of testing (www.ebatpower.com). Thank you!


    Continuous-Current Test Results
    EBAT 30A 3000mAh 20700 CC Tests.jpg


    Pulse-Current Test Results
    EBAT 30A 3000mAh 20700 Pulse Tests.jpg EBAT 30A 3000mAh 20700 Pulse Tests ZOOMED.jpg


    Comparison of the performance of the six EBAT 20700's
    EBAT 30A 3000mAh 20700 CC Tests 10A capacity check all cells.jpg


    Comments
    • At 10A continuous this cell delivered 2837mAh. This is good performance for a 3000mAh rated cell at 10A so I am rating it at 3000mAh.
    • EBAT paid a fee to be moved to the front of the testing queue, which currently has an 8-10 week backlog. This cannot influence my test results as they pay in advance and I don’t care if any company never donates batteries again. My reputation is a lot more important than any battery donation or payment.
    To see how other cells have tested and how hard you can safely push them, check out these links: List of Battery Tests | E-Cigarette Forum
     
    • Like Like x 8
  2. Tonee N

    Tonee N Vaping Master Verified Member

    Mar 24, 2017
    Nevada
    Thank you Mooch for taking your time to test all these batteries. You are very much appreciated.

    Sent from my SAMSUNG-SM-G891A using Tapatalk
     
    • Like Like x 2
  3. Tonee N

    Tonee N Vaping Master Verified Member

    Mar 24, 2017
    Nevada
    And I will NEVER invite you to play a game on FB.

    Sent from my SAMSUNG-SM-G891A using Tapatalk
     
    • Like Like x 2
  4. WharfRat1976

    WharfRat1976 Vaping Master Verified Member ECF Veteran

    May 31, 2014
    Austin, Texas
    Nicely done again, Mooch. Thank you.

    Btw, what batts are you running in your all day setups these days?

    Sent from my SM-G955U using Tapatalk
     
  5. Tonee N

    Tonee N Vaping Master Verified Member

    Mar 24, 2017
    Nevada
    We don't have that kind of security clearance to know what batteries he uses.

    Sent from my SAMSUNG-SM-G891A using Tapatalk
     
    • Like Like x 1
  6. Mooch

    Mooch Electron Wrangler Verified Member ECF Veteran

    Supporting member
    May 13, 2015
    30T, VTC5A, VTC6.
     
    • Like Like x 1
  7. Tonee N

    Tonee N Vaping Master Verified Member

    Mar 24, 2017
    Nevada
    30T or 30Q?

    Sent from my SAMSUNG-SM-G891A using Tapatalk
     
  8. Mooch

    Mooch Electron Wrangler Verified Member ECF Veteran

    Supporting member
    May 13, 2015
    Samsung 30T
     
    • Like Like x 1
  9. Tonee N

    Tonee N Vaping Master Verified Member

    Mar 24, 2017
    Nevada
    Are you using the 30T in a mech?

    Sent from my SAMSUNG-SM-G891A using Tapatalk
     
  10. Mooch

    Mooch Electron Wrangler Verified Member ECF Veteran

    Supporting member
    May 13, 2015
    Yes, Boxer mech squonker.
     
    • Like Like x 1
  11. Deepwinter

    Deepwinter Full Member Verified Member

    Apr 11, 2017
    Do Ebat actually make the cells or are the wraps and if so who makes them.
    Cheers.
     
  12. Mooch

    Mooch Electron Wrangler Verified Member ECF Veteran

    Supporting member
    May 13, 2015
    They don't make them. As mentioned in the report they are the same cell used by Ampking, Efest, and iJoy. It might be a Panasonic or Molicel, we don't know yet.
     
    • Like Like x 2
  13. Deepwinter

    Deepwinter Full Member Verified Member

    Apr 11, 2017
  14. Barkuti

    Barkuti Senior Member ECF Veteran

    May 3, 2016
    Sorry if a tiny bit off topic but, Mooch, where can the 30T be bought?
    Someone from Ohio is asking here at BLF. :)

    [​IMG]
     
  15. Mooch

    Mooch Electron Wrangler Verified Member ECF Veteran

    Supporting member
    May 13, 2015
    They're not in stock anywhere. Hopefully they're available again later this year.
     
  16. SJvape

    SJvape Full Member

    Jul 10, 2017
    Hi mooch, in your professional and personal opinion what is the best and most reliable 20700 battery with a minimum of 30A CDR

    Sent from my SM-G955F using Tapatalk
     
  17. Barkuti

    Barkuti Senior Member ECF Veteran

    May 3, 2016
    SJvape, if that means you are going 30+A no doubt the answer is Samsung INR21700-30T, although technically speaking it's ≈0.5mm wider. :)
    I prefer to stay on the safe side of things. When a cell ages not only its capacity degrades but also its discharge rate, in a proportional way, namely because of additional voltage sag.

    :)
     
  18. SJvape

    SJvape Full Member

    Jul 10, 2017
    Barkuti: thank you, its for the ijoy captain to be precise. Yes i know its regulated, i just require peek performance. Would those batteries you've specified fit in said device?

    Sent from my SM-G955F using Tapatalk
     
  19. Barkuti

    Barkuti Senior Member ECF Veteran

    May 3, 2016
    Oh well SJvape, I don't really know. Certain device manufacturers allow some error margin in the battery compartment, always a wise thing. I do not like tight fitting battery holders, it can mean you're out of league with your next battery pack if you switch to a different cell manufacturer. :confused:
    Email iJoy and specifically ask them if their mod can take the INR21700-30T inside. Report back here in such a case. :)
    As a last resort, a de-tipped 21mm wood drill bit on a drill bench will do the job. Not for bunglers, of course. :shock:

    :party:
     
    • Like Like x 1
  20. Mooch

    Mooch Electron Wrangler Verified Member ECF Veteran

    Supporting member
    May 13, 2015
    No, the Captain does not fit 21700 batteries. It is a 20700 device. Do not try to drill it out to fit 21700's. Especially since the 30T is not available anywhere.

    About the best you can do now is the 30A Ampking/EBAT/Efest/iJoy 20700. They're all the same battery.
     
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