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Bench Test Results: Xtar 25A/35A 2600mAh 18650...accurately rated, appears to be Molicel P26A

Discussion in 'Batteries and Chargers' started by Mooch, Aug 14, 2019.

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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.

    C4437B16-FE31-43CB-91C2-0EDCA23E0926.jpeg FDB26B20-686D-40C9-BFD5-2220E7C4738D.jpeg C1179570-B184-491F-8347-685039F24327.jpeg CEDE15FC-B36E-46D6-8630-01CE51CC97FD.jpeg


    Bottom Line
    This cells looks and performs identically to the great performing Molicel P26A.

    Xtar rates this cell at 25A continuous and 35A “max pulse discharge”. While both ratings are spelled out on the wrap in tiny text a different larger “35A” is much more clearly seen on another part of the wrap. I prefer to just see the continuous current rating shown this way to allow for direct comparison between cells.

    The Molicel datasheet for the P26A only lists a 35A “maximum discharging current” rating with a temperature cutoff of 80°C. This means you can use the P26A at up to 35A as long as the cell stays below 80°C. This should be easy to do as 80°C is frakkin’ hot. Just realize that a malfunctioning or autofiring device could easily exceed this temperature by a LOT if you are set up to vape at 35A.

    I am giving this cell a 25A continuous current rating since that is as high as you can go while not exceeding the 80°C cutoff. This matches Xtar’s 25A continuous rating. To extend cell life, minimize voltage sag, and increase your safety margin, I recommend staying at 25A or under per cell. That’s about 75W.

    The two cells I tested delivered 2624mAh and 2625mAh. This is fantastic consistency.

    Two cells were donated for the purposes of testing by Xtar (XTAR,the best choice for fast charing). Thank you!


    Discharge Graphs
    09A9EB71-D4CA-4493-B1D5-D94B8CBA3D82.jpeg 439B95AB-4229-4BDB-BDA3-25F5FAC3C65A.jpeg


    Ratings Graphic
    42790C5E-74AB-417E-9CC3-7AA2BAAAEE10.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 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
     
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