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Bench Test Results: Blackcell 40A 3100mAh 18650…exaggerated ratings, DO NOT BUY https://ift.tt/2k4Cz9i

Bottom Line: This Blackcell has an exaggerated capacity rating and a hugely exaggerated current rating. Its performance and appearance are identical to the 20A 3000mAh LG HG2.

Due to the exaggerated ratings I am giving this cell a Do Not Buy recommendation.

Blackcell has told me that they are rewrapping their 18650’s and will be issuing some sort of recall for the ones out on the market right now. They say they want to work with the community to have more accurate ratings on their batteries from now on. I told them that their actions will be what‘s important. We’ll see what happens.

The new wraps are supposed to have both an accurate continuous current rating and a ”pulse” rating. As this pulse rating is useless I am not happy to hear it will be used but an accurate continuous rating is a good first step. I will update you when I know more about all of this.

Ratings graphic: https://imgur.com/a/CKoYBQh

Test report: https://www.e-cigarette-forum.com/threads/bench-test-results-blackcell-40a-3100mah-18650-exaggerated-ratings-do-not-buy.863685/

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.

To see how other cells have tested check out this link: https://www.e-cigarette-forum.com/forum/blog-entry/list-of-battery-tests.7436/

Bottom Line: This Blackcell has an exaggerated capacity rating and a hugely exaggerated current rating. Its performance and appearance are identical to the 20A 3000mAh LG HG2.Due to the exaggerated ratings I am giving this cell a Do Not Buy recommendation.Blackcell has told me that they are rewrapping their 18650’s and will be issuing some sort of recall for the ones out on the market right now. They say they want to work with the community to have more accurate ratings on their batteries from now on. I told them that their actions will be what‘s important. We’ll see what happens.The new wraps are supposed to have both an accurate continuous current rating and a ”pulse” rating. As this pulse rating is useless I am not happy to hear it will be used but an accurate continuous rating is a good first step. I will update you when I know more about all of this.Ratings graphic: https://ift.tt/2KyE7Un report: https://ift.tt/2L9GYEe 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.To see how other cells have tested check out this link: https://ift.tt/1Oqakc6

Submitted May 17, 2018 at 10:26AM by Mooch315
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