We’ve seen retail vendors do this, it’s just a standard liability statement, but when the battery wrapping company does this with their own cells then is it done at our expense?

What should we do when a company is willing to sell us something, pocket the profits, and then say not to use what we bought? If you didn’t buy direct from their web site you’d never know they say not to use with e-cigs. Just something to consider. This is different than what Sony and LG do as they do not market to vapers and they actively try to keep us from using their cells.

There is no rating on EHPRO Green-Black 3000mAh 40A 18650 Battery other than “40A MAX”. But if you go to the EHPRO web site it says it has a 32A continuous rating.

No customer should have to go on a quest to hunt down the continuous rating of a cell they are using. Any “max”, “pulse”, or “max pulse” rating is useless as we don’t know the pulse length, time between pulses, and the criteria they used to set the rating (temperature? voltage sag? cycle life? A combination of those or other things?). We’re not able to compare this cell’s pulse rating to any other’s.

Unfortunately, the 32A continuous rating is HUGELY exaggerated. This EHPRO appears and performs identically to the VTC6. Sony rates the VTC6 at 15A continuous. There is a non-continuous rating of 30A if you don’t let the VTC6 exceed 80°C but that will accelerate aging of the cell and is not recommended. The voltage sag will be huge too.

Test report: https://www.e-cigarette-forum.com/threads/bench-test-results-ehpro-green-black-3000mah-40a-18650-a-15a-cell-ehpro-says-do-not-use.854193/

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 the tables can change at any time as different grade cells appear on the market or we get swamped with fakes. Please, never assume that the ratings in the table 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/