This is an almost accurately rated rewrap of the 21700 size version of the Sony VTC6A but it does not have the QR code on the bottom of the metal can. It performed a bit worse than the VTC6A (with the code) and Vapcell VTC6A rewrap (with the code) I recently tested. I don’t think anyone will notice the difference though as it is small.
Since the VTC6A samples I played with earlier this year did not have the QR code on the bottom perhaps there is still a mix of older and newer VTC6A cells in Vapcell’s inventory? This is just a guess though.
The Samsung 40T delivers a tiny bit more energy, Wh, at high current levels but the VTC6A runs a tiny bit cooler. Basically, they perform the same and are a fantastic choice for use at up to 20A-25A, in regulated or unregulated devices. At above 20A-25A the Samsung 30T is the better choice though due to its higher current rating and better efficiency (lower internal resistance).
The two cells I tested delivered 3944mAh and 3974mAh at 800mA (0.2C) down to 2.5V.
I do not have the datasheet for this cell or the Sony VTC6A. I am ESTIMATING this Vapcell’s ratings to be 30A continuous and 3900mAh.
Two cells were donated for the purposes of testing by Vapcell (http://www.vapcelltech.com). Thank you!
Ratings graphic: https://imgur.com/a/jVbP9wy
Test report: https://bit.ly/2Mxn3PC
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These tests only note the ESTIMATED ratings for these batteries at the time I tested them. Any battery that is not a genuine Samsung, Sony, LG, Panasonic, or Sanyo can change at any time! This is one of the hazards of using “rewrapped” batteries 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 protected battery pack. Never exceed the battery’s continuous current rating and keep the plastic wrap and top insulating ring in perfect condition.
Any rating in my ratings tables can change at any time as different grade cells appear on the market, we get swamped with fakes, or new information becomes available to me. Please, never assume that the ratings in the tables are permanent and will never change! Always download the latest version before considering any cell purchase.
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