Have you considered using a battery because of its high pulsed current rating? At first glance the pulse rating seem to make a lot of sense. After all, when we vape we don't run our batteries continuously. We only use them for a few seconds at a time. And considering how much higher the pulse ratings are, versus the continuous current ratings, it's very tempting to choose a battery based just on its pulse rating.
There are no standards for these pulse ratings. One battery reseller could base their rating on taking 4 second draws every minute and another might base their rating on 10 second draws every 20 seconds. These two examples will result in very different temperatures and performance. The same battery could get a 40A rating one way and a 30A rating the other way. This makes comparing batteries by their pulse ratings very difficult, if not impossible.
But that's not the worst of it!
What happens if our regulated mod autofires or our mechanical mod's button gets stuck on or accidentally pressed in our pocket? If we have set up our mod with a low resistance coil that forces us to only rely on a battery's pulse rating, we could be in big trouble. We could easily overheat the battery, causing it to vent or perhaps even burst.
Choosing which battery is best to use based on pulse ratings is not only practically impossible, it can be unsafe too.
So how should you choose a battery to get both the most power for your mod and still be safe? Either go by the continuous discharge rating (CDR) or find a reviewer that tests batteries beyond the CDR and records temperatures to know when it becomes unsafe. But for longer battery life, consider running your batteries below their CDR. It adds a greater safety margin as the batteries age and lets them run cooler.
I have set up a table of safety "grades" for all the batteries I have tested to date. This table shows you what discharge current levels are safe and which might be dangerous for each battery. It can be used as part of choosing which battery might be best for you:
18650 Safety Grades -- Picking a Safe Battery to Vape With
For more detailed information on the batteries I've tested, here's a list of links to the results of each test:
List of Battery Tests
If you're considering using a battery that has a rating above 30A, check this out before you buy them:
There are no 18650 batteries with a genuine rating over 30A!
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