Scared of batteries exploding

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zoiDman

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Nope, not at all. They are very forgiving batteries. They can take a lot of abuse and they just keep going.

Cool.

What type of "Realistic" mAh can you get in an 18650 Cell?

The reason I ask is I had to Replace LiFePo4 18650 Cell in a Machine Tool a few years ago. And at that time, 1200mAh was about the Max I could find that I trusted.
 

zoiDman

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Still pretty much the same zoiDman. :( But they can be recharged thousands of times. :)

Yeah... when I called the Application Engineer to Verify that it had to be a LiFePo4 cell, He said that is why they went with them. Because the amount of Cycles was like 5 Times that of a "Standard" 18650.
 

zoiDman

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The highest amps I have found so far is the PylonTech IFR18650-XP cells which the datasheet says 44A CDR @ 1100mah.

A 44A CDR really isn't a Big Enticement to me.

Because you are Talk'n to someone who is many/most times is Vaping in the Single Digit Amp range.

LOL
 

Mooch

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    I call using the same battery at different amps as individual ratings. As depending on how much you draw from the battery the following can be different: capacity, voltage sag, temperature, etc. I like to see different rating for different currents.

    (Snip)

    I personally also like how Aspire lists the temperature for a given current. More should do this too. I don't want this only on the confidential datasheet that most doesn't have access to. As if my cells are hot enough to fry eggs with, I want to know if this is expected or not. I am sure other vapers would like to know too.

    Say if a cell has a 30A CDR, but the temperature gets to 70°C at 30A, I won't use it at 30A. And I would like to see other CDR values with their temperatures too. Pretty much how Aspire is listing them.

    Ahh...what the industry calls a rating and what you call a rating are completely different. I understand a lot better now. A rating is something very specific. Operating conditions or a particular usage isn’t called a rating so I was quite confused.

    I agree, temperatures at multiple usage levels are very useful and part of every one of my tests.
     

    Rossum

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    Sure there are. Like a mentioned a number of times now, LiFe cells (aka "LFP" stands for "lithium ferrophosphate") are far safer than INR/IMR cells. As LiFe cells are really tough to purposely to get them to overheat and to ignite. Only a few vapors are actually using them. And so far I haven't heard one single mishap from using any of them yet. :)
    They have the lower energy density, i.e. they pack fewer watt hours for a given size and weight of cell. This makes them unattractive for devices that are intrinsically designed to be highly portable, where weight and size are critical factors.
     

    stols001

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    I am saying they are not safe period! Why would I be responsible while people like you say they are ok to use and I am saying no they are not.

    I think your thoughts about safety of the cells have less to do with the batteries and more to do with how you've been ADVISING people to use them frankly. And you are stating both things.

    Perhaps if you used them in the recommended fashion you wouldn't consider them SO unsafe.

    It's not the batteries, it's you. To be blunt.

    Anna
     

    BillW50

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    They have the lower energy density, i.e. they pack fewer watt hours for a given size and weight of cell. This makes them unattractive for devices that are intrinsically designed to be highly portable, where weight and size are critical factors.

    Actually they are used in many portable devices. Flashlights, power tools, backup power supplies (UPS), electric bikes, motorcycles, automobiles, solar panels setups, satellites, etc. I wouldn't be surprised if the Mars Rovers are using them too. As they also work in a wide range of temperatures.
     
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    BillW50

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    I think your thoughts about safety of the cells have less to do with the batteries and more to do with how you've been ADVISING people to use them frankly. And you are stating both things.

    Perhaps if you used them in the recommended fashion you wouldn't consider them SO unsafe.

    It's not the batteries, it's you. To be blunt.

    Anna

    Actually I do use them in the recommend fashion, since we are pulsing our cells, using pulse rating is also indeed safe too (assuming the wrapper is truthful). As long as the pulse rating is realistic of our vaping habits. As there is no real standard of what a pulse rating is.

    But like I mentioned early on, most vapors use continuous discharge rate. But we should never run our mods continuously (this is something that most doesn't seem to understand). But using the continuous discharge rating and just pulsing them is using them well below what they are capable of. In a sense, they are much safer usually.

    Now like I mentioned, I use continuous discharge rate too, but for different reasons. I dislike hot batteries. I don't even remember using my cells even close to the continuous discharge rating, unless I am testing the cells. Then I will test them up to their pulse rating. And virtually all of them do just fine. I don't do this by my face or anything just in case, but nothing happened yet and they perform just great. :)

    Now after all of this, I still really hate INR/IMR cells. Mainly because you could do everything right and safe, but they still can burst into flames anyway. And I converted as much of my devices that uses them to use another type of cell which is much safer. Although things like mods that can't use cells like LiFe, NiMH, etc I can't do much about. And while I could mount an AA battery bay to hold 3 AA NiMH cells in series on something like the back of my cell phone. But it would just look ridiculous. :(
     
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    Baditude

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    Actually I do use them in the recommend fashion, since we are pulsing our cells, using pulse rating is also indeed safe too (assuming the wrapper is truthful). As long as the pulse rating is realistic of our vaping habits. As there is no real standard of what a pulse rating is.

    But like I mentioned early on, most vapors use continuous discharge rate. But we should never run our mods continuously (this is something that most doesn't seem to understand). But using the continuous discharge rating and just pulsing them is using them well below what they are capable of. In a sense, they are much safer usually.
    Posting this in the New Members Forum is a disservice to all new vapers who come to this forum seeking information about vaping and batteries. You need to get a better understanding of just what the continuous discharge rating and pulse rating really mean before preaching a bunch of misinformation and untruths.

    Battery pulse ratings are useless! | E-Cigarette Forum
    There are no 18650 batteries with a genuine rating over 30A!
    Battery Amp Ratings: Continuous vs Pulse Ratings
     
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