Bench Test Results: Vapcell N36 - 8A 3650mAh 18650


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  • May 13, 2015
    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_3694.jpeg IMG_3695.jpeg IMG_3696.jpeg IMG_3698.jpeg

    Test Results
    It’s a pretty good performer. At 5A it equaled the Molicel M35A and almost matched the LG MJ1, Samsung 30Q6, and Samsung 35E3. If you can find this cell at a lower price than those others, or the others are out of stock, it might be worth considering this cell.

    Its 8A rating seems appropriate. While it didn’t show signs of a lot of stress even at 10A continuous this cell, like all ultra-high capacity cells, performs best at a decent amount under its rating. It did get too hot at 10A though. I recommend staying under 5A (15W). Its extra capacity won’t really by available unless you’re down around 3A (10W) or lower.

    This is the classic tradeoff. You can have lots of capacity but usually only with a lower current rating. Or you can have a good current rating but usually only if you sacrifice some capacity.

    You can pulse it at its 15A ”max” rating but you will get lots of voltage sag as this is significantly above its continuous rating. Do not run it continuously at 15A and keep the cell under 60°C at all times.

    The two cells I tested delivered 3673mAh and 3682mAh. This is great consistency and (barely) meets their 3650mAh capacity rating. There might be some N36 cells that are under 3650mAh but probably not by much and the rating seems reasonable.

    Continuous Current Discharge Graphs
    Vapcell N36 - 8A 3650mAh 18650 CC tests - June 2023.jpeg

    Ratings and Performance Specs Graphic

    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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