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Thread: How hard it is to kill an unprotected cell?

  1. #31

    Default Re: How hard it is to kill an unprotected cell?

    you have to be careful, though: too much salt on the potato, and you'll be guilty of a salt and battery.

  2. #32

    Default Re: How hard it is to kill an unprotected cell?

    hehehe yer on a roll with this one!

  3. #33
    *Flashaholic* Illum's Avatar
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    Crackup Re: How hard it is to kill an unprotected cell?

    Quote Originally Posted by lampeDépêche View Post
    But you have to get the correct ratio of lemons to potatoes to mayo to cabbage. That's Ohm Slaw.

  4. #34

    Default Re: How hard it is to kill an unprotected cell?

    LED is still glowing
    I am happy to realize how happy I am. Thus, a chain reaction of happiness.
    SkyLumen54@gmail.com




  5. #35

    Default Re: How hard it is to kill an unprotected cell?

    Quote Originally Posted by lampeDépêche View Post
    Somewhere on CPF at this very moment, a visionary inventor is trying to figure out how to power 6 XP-L's on a crate of lemons, and still make it EDC'able....
    Mine didn't work but still having faith, as I suspect it was just a lemon.

  6. #36

    Default Re: How hard it is to kill an unprotected cell?

    LED is still glowing
    I am happy to realize how happy I am. Thus, a chain reaction of happiness.
    SkyLumen54@gmail.com




  7. #37
    *Flashaholic* Offgridled's Avatar
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    Default Re: How hard it is to kill an unprotected cell?

    Quote Originally Posted by vinhnguyen54 View Post
    LED is still glowing
    Crazy

  8. #38

    Default Re: How hard it is to kill an unprotected cell?

    Should we see how long a potato will power it should the cell ever die?


    https://en.m.wikipedia.org/wiki/Lemo...ery#Variations
    a single sunbeam is enough to drive away many shadows- St. Francis of Assissi

  9. #39
    ven's Avatar
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    Default Re: How hard it is to kill an unprotected cell?

    Quote Originally Posted by aginthelaw View Post
    Should we see how long a potato will power it should the cell ever die?


    https://en.m.wikipedia.org/wiki/Lemo...ery#Variations
    a peeling thought!

  10. #40

    Default Re: How hard it is to kill an unprotected cell?

    I've connected 2AAA nimh (about 400ma) to a 5mm LED and it ran for about 2 months before I couldn't see any light out of it. I'm guessing the more efficient XPG LED off a lot higher mah source will run for several more months before you have to have pitch dark and a magnifying glass to see "the glow".
    Fenix Split rings 1400+ sent, SWIVELS now available also!
    Psalm 112:4 Light shines in the darkness for the godly. They are generous, compassionate, and righteous.

  11. #41

    Default Re: How hard it is to kill an unprotected cell?

    Led still lit
    I am happy to realize how happy I am. Thus, a chain reaction of happiness.
    SkyLumen54@gmail.com




  12. #42

    Default Re: How hard it is to kill an unprotected cell?

    Over on the General Flashlight forum there's a thread looking for a light for "Self defense, and uses an 18650"

    http://www.candlepowerforums.com/vb/...d-uses-a-18650

    Seems like we could combine these threads to do a comparison:

    How hard it is to kill an unprotected 18650, vs. how hard is it to kill an 18650 that has learned how to protect itself by taking self-defense courses?

    "Stay back! I was manufactured in Japan, and I know karate!"

  13. #43

    Default Re: How hard it is to kill an unprotected cell?

    LED still lit
    I am happy to realize how happy I am. Thus, a chain reaction of happiness.
    SkyLumen54@gmail.com




  14. #44
    Flashaholic* degarb's Avatar
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    Default Re: How hard it is to kill an unprotected cell?

    Quote Originally Posted by A.marquardt View Post
    The newish 3500mAH batteries die pretty easy. I had 4 of them in my TMo4vn (which has a constant, blue LED power available light) and have killed 3 of them dead dead dead. These are the first batteries I have ever run across that simply die from overdischarging.... They were NEW too, so I'm not very impressed with them.
    Are you sure they weren't protected 3500s. . If the protection trips it will read 0V. A good smart charger will not charge it. So, jump it or buy a Cheap not so smart charger that will pump anything.

    Also, Panasonic 3400s are made to go to 2.5V, while other brands are 3V. On a single cell or parallel amc7135 based controller lights it is impossible to go much below 2.9 volts, as the FWV at 300 is 2.7 and the controller dies at just below .2V above FWV.

    About the only time one can safely take advantage of the extra runtime is in a buck controller, like the buckpuck, with a 2.5 v cut off and 2plus cells in series. You might get much significant time in a 4s18650, or small significant in a 2s. If your electric socks or work light or bike light dies, even half hour or hour shy of full daily service time, over 300 days a year, it means double cycles, plus, upwards and into, thousands of dollars lost, from a business point of view. . So, 45 minutes of lost runtime, is a big deal. . Even for recreational usage, multiply number of users of your product times how much inconvenience time. .
    Last edited by degarb; 12-27-2016 at 08:41 AM.
    Some people are all lumens and no lux, while others are all lux and no lumens. Some just thank God they have neither.-- All of my lights have throw--some pretty darn far, into the garbage.

  15. #45

    Default Re: How hard it is to kill an unprotected cell?

    This thread went a bit topic wobbly so I'm just gunna chime in with something that may or may not be relevant. Mooch from ECF tests A LOT of batteries hard for vaping purposes. He tests ALL down to 2.5v through numerous cycles therefore I am happy to discharge to 2.5v on any battery as battery safety is that mans job. When a battery over discharges it develops shunts which causes the danger when recharged. Some chargers can recover the battery from very low states. Just google metallic shunts in li ion batteries and you should find some useful info.

  16. #46

    Default Re: How hard it is to kill an unprotected cell?

    Get a webcam so you can live stream it
    a single sunbeam is enough to drive away many shadows- St. Francis of Assissi

  17. #47

    Default Re: How hard it is to kill an unprotected cell?

    Just popping in to see if anyone's talking about me.

    Carry on

  18. #48

    Default Re: How hard it is to kill an unprotected cell?

    Quote Originally Posted by wimmer21 View Post
    Just popping in to see if anyone's talking about me.

    Carry on
    I was, but in a different thread. Though now, I reckon, I am.

  19. #49

    Default Re: How hard it is to kill an unprotected cell?

    if yer real quiet, maybe you can hear energizer bunny pounding inside.

  20. #50

    Default Re: How hard it is to kill an unprotected cell?

    Quote Originally Posted by wimmer21 View Post
    Just popping in to see if anyone's talking about me.

    Carry on

    Aight everyone! coast is clear!!

  21. #51

    Default Re: How hard it is to kill an unprotected cell?

    I don't mind it when they say, "and speaking of killing batteries, do you remember that time that LampeDépêche toasted a set of 18650s?"

    What I mind is when they say, "speaking of dim bulbs, where's LampeDépêche?"

  22. #52

    Default Re: How hard it is to kill an unprotected cell?

    LED is still glowing
    I am happy to realize how happy I am. Thus, a chain reaction of happiness.
    SkyLumen54@gmail.com




  23. #53

    Default Re: How hard it is to kill an unprotected cell?

    daaang. whats the voltage on the battery?

  24. #54

    Default Re: How hard it is to kill an unprotected cell?

    An era has ended, another whole new era has begun, and...



    ...



    ...LED is still glowing
    For less performance, use smaller flashlights; and for most performance, use largest flashlights.

  25. #55

    Default Re: How hard it is to kill an unprotected cell?

    LED still glowing
    I am happy to realize how happy I am. Thus, a chain reaction of happiness.
    SkyLumen54@gmail.com




  26. #56
    Flashaholic* vudoo's Avatar
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    Default Re: How hard it is to kill an unprotected cell?

    Wow....

  27. #57
    Flashaholic* vadimax's Avatar
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    Default Re: How hard it is to kill an unprotected cell?

    Quote Originally Posted by vinhnguyen54 View Post
    LED still glowing
    Do you have a Geiger counter? Perhaps, it has a nuclear reactor inside

  28. #58

    Default Re: How hard it is to kill an unprotected cell?

    So it has been 5 months already and the LED is still glowing. At the start of the test the battery was deleted enough that the LED glow dimly. Battery still reads 2.5V today ... for what its worth :-)
    I am happy to realize how happy I am. Thus, a chain reaction of happiness.
    SkyLumen54@gmail.com




  29. #59

    Default Re: How hard it is to kill an unprotected cell?

    As we sail into the mystic, is the led still glowing?
    For less performance, use smaller flashlights; and for most performance, use largest flashlights.

  30. #60
    *Flashaholic* Illum's Avatar
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    Default Re: How hard it is to kill an unprotected cell?

    I think you should swap out the LED for one with a lower forward voltage.... like a red LED... [Vf: 2.1 or so]

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