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Bench Test Results: Golisi S30 25A 3000mAh...only 20A, about equal to HG2

Discussion in 'Batteries and Chargers' started by Mooch, Aug 1, 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, Murata, 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.

    95C2586E-9366-44A9-AED5-35254734494D.jpeg E6D09FB2-1DB3-486A-9D6A-F9C172BB5281.jpeg CF486E34-8E9E-44BB-82B4-015680C95AEF.jpeg 37BCBA9F-6689-4559-8CDA-FEBBD96D8BFA.jpeg


    Bottom Line
    This cell has a slightly exaggerated current rating but performs about the same as the LG HG2, a bit worse than the 30Q and VTC6.

    It has a useless “max” rating of 35A on the wrap, which should be ignored. The continuous discharge rating (CDR) on the wrap is 25A.

    At 25A continuous though the four cells I tested reached 92°C-99°C. That is much too hot to use 25A as the rating. Discharging it at 20A continuous brings it to about the same temperature that the LG HG2 reaches at its continuous discharge rating of 20A. This is about 60W in a regulated mod.

    The four cells I tested delivered 3112mAh, 3164mAh, 3165mAh, and 3185 at 0.6A (0.2C) down to 2.5V. They showed the typical spread in performance for China manufactured cells but I do not know where they were made.

    I am ESTIMATING this cell’s ratings to be 20A and 3000mAh.

    Two cells were donated for the purposes of testing by Golisi (Home). Thank you!


    Continuous Current Discharge Graphs
    DFE7DD7F-6407-4E3D-A27D-58DF27C552A1.jpeg 092C5D2B-FDFF-46C5-844B-2B19D23A6032.jpeg 1AEDF54D-E2B4-4FE4-AF54-204255248F48.jpeg


    Ratings Graphic
    D17CEC2E-7712-4D56-9611-4ABE894DC904.jpeg


    Performance Specs
    - DC Internal Resistance = 17.8-19.9mOhms (milliohms) for the four cells.
    - Total energy delivered down to 3.2V at 10A continuous = 7.1Wh (Watt-hours), lowest performer
    - Total energy delivered down to 3.2V at 20A continuous = 5.1Wh (Watt-hours), lowest performer

    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.

    Golisi paid a fee to be moved to the front of the testing queue, which currently has a 10-12 week backlog. This cannot influence my test results as they pay in advance, have no say about what is in this report, and I don’t care if any company never does this or donates batteries again. My reputation is a lot more important than any battery donation or payment.

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