battery charge level

Discussion in 'Reos Mods' started by yolo_, Nov 28, 2013.

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  1. yolo_

    yolo_ Ultra Member ECF Veteran

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    I have some batterys that are about a year old and are only charging up to 4.15 instead of 4.2 but they still work ok. So when do i need to retire them? They are 14500 batteries in case that matters.
     
  2. Krazirob

    Krazirob Super Member Verified Member ECF Veteran

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    i keep them until they won't charge past 3.8 The best way the mitigate them from going bad like this is to not let them go below 3v of charge before charging....
     
  3. Filthy-Beast

    Filthy-Beast Vaping Master Verified Member ECF Veteran

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    I say it really depends on how quickly they drop from 4.15 to 3.5.
     
  4. yolo_

    yolo_ Ultra Member ECF Veteran

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    Half of bottle of juice and then i change them unless i forget, So sometimes they get below 3.5
     
  5. supertrunker

    supertrunker Super Member Verified Member ECF Veteran

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    FB is right - i am going thru my usual rotation of batteries because some of them are dead in about 2 hours although they all charge ok. Those 'sagging' batteries are destined for the trash, when i find them.

    Short of using them and seeing how they perform i have not come up with a satisfactory way of measuring them, either with a multimeter or by how well they charge that allows me to predict their behaviour. So it's suck it and see!

    T
     
  6. pdib

    pdib Registered Supplier - Offline ECF Veteran

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    When I was doing v-drop tests and modding, I threw an older batt into the REO for kicks. It's pretty obvious if you meter it under load. Lots of internal resistance showed up. I was getting something like a .3V drop with new batteries (.4Ω coil) and the 8 mo. old MNKEs were more like .7-.8V. So, may I suggest putting meter leads on your atty posts and firing the mod. That'll diagnose those mysterious battery innards. :p
     
  7. supertrunker

    supertrunker Super Member Verified Member ECF Veteran

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    Every test i have seen that has done that, has been for milliseconds - quick, hit it - get a reading and stop. Is there any reason for this?

    Or can i just sit there with my fire button pressed and the meter leads on the atty pins?

    T
     
  8. pdib

    pdib Registered Supplier - Offline ECF Veteran

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    I usually do it for about 3-4 seconds. The initial burst is misleadingly high. The voltage seems to settle out about 3 seconds into it.


    my MM has a 10A limit. I imagine that would apply to this situation. If I were to blow the fuse in the MM, I would have to replace that.
     
  9. ChrisEU

    ChrisEU Super Member Verified Member ECF Veteran

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    The current is not going through the multimeter - you can fire all day with the leads on the posts - in voltage mode of the MM.
    The 10 amps limit usually relates to amperage metering, where you put the MM in series with the atomizer to measure the actual amperage through the coil.
     
  10. pdib

    pdib Registered Supplier - Offline ECF Veteran

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    ah yes, that's right. Thanks Chris. Happy NoThanksgivingForYouDay! :)

    It's one of those things where if it's not in my hands, it's not in my brain either.
     
  11. ChrisEU

    ChrisEU Super Member Verified Member ECF Veteran

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    Happy overeating yourself!
     
  12. pdib

    pdib Registered Supplier - Offline ECF Veteran

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    Hah! silly European! I'm not overeating myself! i'm overeating a turkey. (no wonder we have to spy on you guys, you'd be lost without us)

















    sooooooooooooooooooooooooooooooooo totally JK
     
  13. ChrisEU

    ChrisEU Super Member Verified Member ECF Veteran

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    Turkeys are overate!









    God, it's awful to pun in a foreign language =)
    Oh, and I usually refer to your spy kids as my external backup, just in case. They even use german software, I wonder if they reversed the newest release before installing it...
     
  14. MamaTried

    MamaTried Vaping Master Verified Member ECF Veteran

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    this is coming from the land of Bratwurst? :)
     
  15. ChrisEU

    ChrisEU Super Member Verified Member ECF Veteran

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    At least we don't have those for breakfast... unless we have leather allergy.








    ... every time I wake up in the morning and feel bad, I still have my shoes on - must be allergic to leather.
     
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