While this cell has a close to accurate 10A continuous current rating on the wrap it is in very tiny print and a useless 15A “pulse” rating is also used. This is confusing, unnecessary, and I would like to see this type of rating stopped.
It is an above average performer but a bit worse than the Vapcell and Aspire cells. The two Keeppowers I tested delivered 1040mAh and 1042mAh at 0.2A down to 2.5V. This is quite a bit below their 1200mAh rating.
I am estimating this Keeppower’s ratings at 9A and 1000mAh. Current ratings for high internal resistance cells like these are a combination of the temperature the cell runs at and how badly the voltage sags, i.e., its Wh specs.
The performance of any 18350 really suffers at higher current levels due to their very high internal resistance, leading to huge voltage sag. I recommend staying under their continuous current rating. This results in much more efficient operation and much longer vaping time.
This is the last in a group of seven 18350’s I am testing and I will be posting a shootout between all of them after the individual test reports are posted. The top three performers will then be identified.
Two cells were purchased for the purposes of testing by me.
Ratings graphic: https://imgur.com/a/E18Xmmm
Test report: https://bit.ly/2K9JPPL
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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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