Bench Test Results: Vapcell F56 - 12.5A 5600mAh 21700


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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_3733.jpeg IMG_3734.jpeg IMG_3735.jpeg IMG_3736.jpeg

    Test Results
    This is a very good performing cell. It matches the Samsung 50S at both 5A and 10A but doesn’t have the high current rating of the 50S. The LG M50LT performs a little better at 5A but this Vapcell is a little better at 10A.

    This Vapcell is rated at 12.5A, which seems reasonable. The two cells I tested delivered 5742mAh and 5773mAh which is not very consistent but exceeds this cell’s 5600mAh capacity rating.

    This is a long cell, about 71.1mm in length and 20.7mm in diameter. You’ll need to take that into account when building battery packs or if using this cell in a device where Samsung or other smaller cells are already a tight fit.

    Like all ultra-high capacity cells you will need to use it at very low current levels, a couple of amps, in order to see the extra run time this cell can offer due to its 5600mAh capacity. You will probably also need to run it down to below 3.0V to see that capacity difference as that’s where it shows up the most. Otherwise it’s a great performer at up to about 10A, usable to 12.5A.

    This cell doesn’t have a non-continuous rating for use at above 12.5A and I recommend not going that high anyway due to all the voltage sag you will get (which shortens run time).

    Continuous Current Discharge Graphs
    Vapcell F56 - 12.5A 5600mAh 21700 CC Tests.jpeg

    Ratings and Performance 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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