Test Report Summary: This is a good performing cell, essentially equal to the Samsung 40T at up to 25A. The Molicel P42A performs a little better but I don’t think you’ll see much difference in actual use.
I can not find a datasheet but Vapcell lists these with a 4000mAh 30A rating. Without a datasheet to confirm the claimed 30A rating I recommend staying under 25A with this cell to reduce voltage sag and extend cell life. Like any Li-Ion round cell not in a protected battery pack, you use it at your own risk.
The two cells I tested delivered 4006mAh and 4016mAh, meeting Vapcell’s 4000mAh rating. That is great consistency and is typical for cells from the major manufacturers.
I do not know who carries these cells but if you cannot find them anywhere Vapcell donated them for testing so you could contact them: https://www.vapcelltech.com
Ratings graphic: https://imgur.com/a/A91xHDO
Full Test report: Bench Test Results: LG H40A 21700…good performer, equal to Samsung 40T | E-Cigarette Forum
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These tests only note my personal ESTIMATED ratings for these batteries 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 is 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. They are not supposed to be used outside of a fully protected battery pack and you use them at your own risk. Never exceed the battery’s true continuous current rating and keep the plastic wrap and top insulating ring in perfect condition.
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.
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.
To see how other cells have tested check out this link: List of Battery Tests | E-Cigarette Forum