This is an accurately rated rewrap of the 21700 size version of the Sony VTC6A. It performed essentially identically to the VTC6A I recently tested.
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 Vapcells I tested have a tiny QR code square on the bottom, same as the VTC6A’s I tested. There are versions of this Vapcell without the QR code though which I am testing now. If you have a VTC6A 21700, or one of its rewraps, that does not have this QR code it is probably just an earlier sample.
The two cells I tested delivered 4113mAh and 4141mAh at 800mA (0.2C) down to 2.5V.
I do not have the datasheet for this cell. I am TENTATIVELY ESTIMATING this Vapcell’s ratings to be 30A continuous and 4000mAh rated/minimum, 4100mAh typical/nominal.
Two cells were donated for the purposes of testing by 18650batterystore (http://www.18650batterystore.com). Thank you!
Ratings graphic: https://imgur.com/a/JyckiWB
Test report: https://bit.ly/2Ojx8R4
I want to work for the vaping 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 and testing news and a say in what I test then please consider becoming a patron and supporting my testing efforts: https://www.patreon.com/batterymooch
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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