Bench Test Results: Vapcell M11 - 9A 1100mAh 18350

Mooch

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  • May 13, 2015
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    These tests below only note my personal opinion for the 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 can be 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. Never use them outside of a fully protected battery pack and you use them at your own risk. Never exceed the battery’s true continuous discharge rating (CDR), never let it get colder than 0°C or hotter than 60°C, and keep the plastic wrap and top insulating ring in perfect condition. Never use a battery that is physically damaged in any way.

    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.

    IMG_3719.jpeg IMG_3720.jpeg IMG_3721.jpeg IMG_3722.jpeg


    Test Results
    This cell is almost accurately rated and seems to be the good performing Yong De Li New Energy Company (YDL) cells that were used by everyone a couple of years ago. Back then they were pretty inconsistent performers but the two of these I tested were pretty close to each other in performance and a little bit better than the cell used by the Keeppower UH1835P and Vapcell A11.

    There isn’t a big difference in performance between these and those other cells, probably not noticeable in actual use, but if you can get these for the same price or lower than the others these are the better buy.

    This cell and the Epoch 18350 have a four “leg” top contact and the Keeppower UH18350P and Vapcell A11 have a six “leg” top contact.

    The two cells I tested delivered 1050mAh and 1053mAh. This is under this cell’s 1100mAh rating and lower than the Epoch 18350 even though they appear to be the same cell. I am rating them at 1000mAh.

    The 9A rating seems reasonable but it pushes it them hard so I recommend, like with all 18350’s, operating these Vapcells at lower than their rating. For best performance (not lots of voltage sag) and long cell life I recommend staying under 5A-7A (15W-21W). Charge at 0.5A or lower!


    Continuous Current Discharge Graphs
    Vapcell M11 - 9A 1100mAh 18350 CC Tests - June 2023.jpeg


    Ratings and Performance Specs Graphic
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    18650 Ratings and E-Scores Table:


    20700/21700 Ratings and E-Scores Table:

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    To see how other cells have tested check out this link: Links To All 21700, 26650, 18350, 18500 Battery Tests
     

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