Bench Test Results: Epoch 25P - 20A 2500mAh 18650…decent performer at a lower price

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Mooch

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May 13, 2015
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    These tests below only note my personal ESTIMATED ratings for the batteries I tested 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 property damage, personal injury, or even death. They are not supposed to be used outside of a fully protected battery pack and you use them at your own risk. Never exceed the battery’s true continuous current rating and keep the plastic wrap and top insulating ring in perfect condition.

    Testing batteries at their limits is dangerous and should never 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.

    565060C2-AB8F-45F3-8678-4E87A821DF43.jpeg D45F7388-9C3E-4E6F-9D65-818084AF617B.jpeg A1C2D850-4012-4287-9B03-720623B3EB62.jpeg FB83F400-D2DC-4B8C-93CD-5191B3D0EBB6.jpeg 275D0767-DE1E-4F3A-BD34-05D42F5A2D99.jpeg


    Test Results
    This cell appears to be accurately rated and is a decent performer that should be available at a lower price. It doesn’t perform quite as well as the Samsung 25R but where cost is the priority, and as 25R’s become harder to find, this could be a good cell to consider using.

    The two cells I tested delivered 2532mAh and 2538mAh. This is fantastic consistency for a cell from one of the large, established China factories. Both cells exceeded their 2500mAh capacity rating.

    Two cells were donated for testing by 18650BatteryStore (18650 Battery Store - Lithium Ion Batteries, Chargers and Accessories). Thank you!


    Continuous Current Discharge Graphs
    012A50DA-EC5F-472B-B5A6-4E69026E152E.jpeg 6E188F28-4C54-4A65-AF46-46A32A6835D2.jpeg


    Ratings and Performance Specs Graphic
    4F699A22-41B4-4A12-A7E3-D40BB085A011.jpeg

    I want to work for the 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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