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Bench Test Results: MXJO Yellow 10.5A 700mAh Button Top 18350...a below average 5A battery

Discussion in 'Batteries and Chargers' started by Mooch, Jun 14, 2018.

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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, LG, Panasonic, 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 protected battery pack. Never exceed the battery’s current rating and keep the plastic wrap and top insulating ring in perfect condition.

    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.

    AC74D4EA-5F61-4A87-99DF-7EFE6FC4F5E9.jpeg 68755E27-1381-4AD8-A5F4-0463893EFEAF.jpeg 2160A4C0-37CA-4C4E-BAAB-7C40AF80190D.jpeg 5C3EFE4D-3F8A-4508-83CA-A37AB3D3CF64.jpeg


    Bottom Line
    While both of the cells I tested delivered a bit over their rated 700mAh of capacity they were poor performers with an exaggerated current rating. Their large voltage sag made them essentially unusable at 10A, as displayed by the huge drop in the Wh delivered between 5A and 10A.

    I am estimating this cell’s ratings at 5A and 700mAh. Current ratings for high internal resistance batteries like these are a combination of the temperature the battery runs at and how badly the voltage sags, i.e., its Wh specs.

    This is the first in a group of seven 18350’s I am testing and I will be posting a shootout between all of them after the individual test reports are posted. The top three performers will be identified.

    Two cells were purchased for the purposes of testing by me.


    Continuous Current Discharge Graph
    20CED7B7-09FD-4738-8BD1-4ADD671F5C56.jpeg


    Ratings Graphic
    C2EA7E9E-380F-4BCE-9ACE-28064C83857B.jpeg


    Performance Specs
    • DC Internal Resistance = 49.5mOhms (milliohms) average for the two cells.
    • Total energy delivered down to 3.2V at 5A continuous = 1.6Wh (Watt-hours) average
    • Total energy delivered down to 3.2V at 10A continuous = 0.2Wh (Watt-hours) average
    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 and testing news and a say in what I test then please consider becoming a patron and supporting my testing efforts: Battery Mooch is creating battery tests and educating vapers | Patreon

    To see how other cells have tested check out this link: List of Battery Tests | E-Cigarette Forum
     
    • Like Like x 4
  2. sonicbomb

    sonicbomb Vaping Master Verified Member ECF Veteran

    Feb 17, 2015
    1187 Hunterwasser
    Another fine effort from MXJO
     
    • Funny Funny x 1
  3. mimöschen

    mimöschen Super Member ECF Veteran

    Jul 15, 2016
    Sarcasm

    Discreet words confuse,
    Hidden phrased ruse,
    Foolish trickery,
    Ridiculous mimicry,
    Idiotic comprehension,
    Obvious ironic intention.

    --JacobDexterCoffey--
     
    • Like Like x 2

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