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Bench Test Results: Molicel M35A - 10A 3450mAh 18650...great performer, about equal to NCR18650GA

Discussion in 'Batteries and Chargers' started by Mooch, Mar 24, 2021.

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  1. Mooch

    Mooch Electron Wrangler Verified Member ECF Veteran

    Supporting member
    May 13, 2015
    These tests below only note the ESTIMATED ratings for these batteries at the time I tested them. Any battery that is not a genuine Samsung, Sony, Murata, LG, Panasonic, Molicel, or Sanyo can change at any time! This is one of the hazards of using “rewrapped” or batteries from other manufacturers so carefully research any battery you are considering using before purchasing.

    Misusing or mishandling lithium-ion batteries can pose a SERIOUS RISK of personal injury or property damage. They are not meant to be used outside of a physically and electrically protected battery pack. Never exceed the battery’s current rating and keep the plastic wrap and top insulating ring in perfect condition. Use of any of these batteries is AT YOUR OWN RISK.

    Testing batteries at their limits is dangerous and should never, ever, be attempted by anyone who has not thoroughly studied the dangers involved, understands the risks, has the proper equipment, and takes all appropriate safety precautions.

    If the battery has only one current rating number, or if it only says "max", then I have to assume the battery is rated at that current level for any type of discharge, including continuous.

    7AA5C8B5-1717-49C5-8C94-8A7B9856E8F2.jpeg 4C1A74F3-9BBB-4355-AADC-4BAF0DF4A019.jpeg 84E4FBFD-505A-4408-8432-BCAF58B155A2.jpeg B14974B0-FDB1-4C4C-BE76-E1AC00160FB3.jpeg


    Test Results
    It’s been a couple of years since I tested samples of this cell and now they’re finally available. Good thing too. These perform just about as well as the Sanyo NCR18650GA, making them one of the best performing ultra-high capacity 18650’s, and the M35A should be about the same price.

    As the cells from the other major manufacturers become harder and harder to find it’s great to see Molicel expand the number of cells we can use.

    Molicel rates them at 3350mAh minimum/3450mAh typical and at 10A max but they note in the datasheet that cycle life is reduced at this 10A level. Like all ultra-high capacity cells I recommend staying below 50%-70% or so of the continuous current rating in order to reduce voltage sag, decrease risks, and extend the overall life of the cell. This means staying at 5A-7A (15W-21W) or lower.

    Maximum charge rate is 1.7A so I recommend staying at 1A or lower to help extend cell life.

    The two cells I tested delivered 3482mAh and 3503mAh and had DC internal resistances of 51.3mOhm and 50.7mOhm. This is decent consistency and both cells exceed Molicel’s minimum and typical capacity ratings.

    These cells were purchased at 18650BatteryStore (www.18650batterystore.com).


    Continuous Current Discharge Graphs
    158DB8DE-BDF9-4288-BF95-5EE1740EA3B6.jpeg BEE0579A-05AC-4DD1-AE6B-F9CCF0DA908A.jpeg AC1AE038-8A2E-42C3-A38A-30AB339E47FE.jpeg


    Ratings and Performance Specs Graphic
    44E44FF8-0321-45DD-9747-9F3D7F319110.jpeg

    I want to work for the vaping community full time! If you feel what I do is worth a couple dollars a month and you would like early access to battery availability, battery and charger testing and news, and a say in what I test, then please consider becoming a patron and supporting my testing efforts: Battery Mooch is creating battery and device tests | Patreon.

    To see how other cells have tested check out this link: List of Battery Tests | E-Cigarette Forum
     
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  2. AussieGeek

    AussieGeek Senior Member

    Jun 30, 2020
    Fantastic work; I have been waiting on this one as it could work well for my single coil builds in my dual cell mods in temperature control mode where I start at around 60W but the power falls to around 20W very quickly after my draw starts. Since these perform just about as well as the Sanyo NCR18650GA, this could have good application in some of the "alternative" vaping devices out there too. There are good supply chains for Molicel in Australia now so I hope to be able to get access to these soon. Thanks for the amazing work as always.

    To other readers: if you dont already support Mooch to do this important work for us that helps us get the optimal vape time out of our devices SAFELY, then I strongly encourage you to consinder it. The number of hours of work that this man puts into these findings is truly staggering.
     
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  3. mcduffy

    mcduffy Super Member ECF Veteran

    Jul 9, 2017
    18650batterystore gives the width as 18.3mm. Are they really as slim as that? The end cap of my Smok Zmax rips the wrapper on any battery fatter than a Samsung 30Q which has a given width of 18.42mm. The Sanyo NCR18650G's width is stated to be 18.65mm.
     
    • Useful Useful x 1
  4. Mooch

    Mooch Electron Wrangler Verified Member ECF Veteran

    Supporting member
    May 13, 2015
    The datasheet says 18.30mm, +/-0.30mm. So that’s 18.0mm-18.60mm possible size. The two I have measure about 18.38mm max.
     
    • Informative Informative x 2
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  5. Katya

    Katya ECF Guru Verified Member ECF Veteran

    Supporting member
    Feb 23, 2010
    SoCal
    What if you vape below 15W? :blush:
     
  6. mcduffy

    mcduffy Super Member ECF Veteran

    Jul 9, 2017
    Thanks for taking the trouble to measure. I'll take a chance on them the next time then.
     
    • Agree Agree x 2
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  7. Mooch

    Mooch Electron Wrangler Verified Member ECF Veteran

    Supporting member
    May 13, 2015
    As mentioned, 15W or lower is okay. :)
     
    • Agree Agree x 1
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  8. Katya

    Katya ECF Guru Verified Member ECF Veteran

    Supporting member
    Feb 23, 2010
    SoCal
    Sorry, reading comprehension issues. :blush:

    I blame the government. ;)
     
    • Like Like x 1
    • Funny Funny x 1
  9. Zurd

    Zurd Ultra Member Verified Member ECF Veteran

    Feb 10, 2010
    Montréal
    Awesome! Timing couldn't be more perfect as I need new batteries, my Samsung INR18650-25R needs to be changed, had them for 1.8 years. Just bought 11 Molicel, first time I'm buying 18650 at a cheap price like this.

    Thank you very much Mooch! :)
     
    • Winner Winner x 1
  10. Superuser187

    Superuser187 Ultra Member

    Aug 10, 2020
    Athens
    Then the battery is bored and falls asleep and never wakes up :p don't use that cell
     
    • Funny Funny x 1
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