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18650 Batteries

Discussion in 'New Members Forum' started by James467809, Oct 29, 2014.

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  1. James467809

    James467809 Full Member

    Oct 24, 2014
    Why are my 18650 (i have 2, both different brands) batteries showing only 4v at full charge... From what ive read it should be 4.2v.. I also have a cheap charger but i dont know if this is normal
  2. FallenRawToast

    FallenRawToast Ultra Member ECF Veteran

    Mar 30, 2014
    LA, CA, USA, NA, SOL

    How are you measuring that 4 volts?

    What brand are your batteries?

    How old are your batteries?

    What sort of mod do you use them in?

    Define "cheap charger" does it have a brand? or a built in volt meter?
  3. James467809

    James467809 Full Member

    Oct 24, 2014
    I have a vamo v5 checking my voltage and my batteries are the panasonic vtc-4 and a trustfire. The charger is a cheap 15$ charger my local ecig store threw in when i bought the vamo, i asked him if it was ideal to buy a better charger and he told me his honest opinion that it wouldnt change the battery voltage and would only take longer to charge.
  4. James467809

    James467809 Full Member

    Oct 24, 2014
  5. Fedora King

    Fedora King Full Member

    Oct 29, 2014
  6. James467809

    James467809 Full Member

    Oct 24, 2014
    update: went to the local cape store and tested all kinds of different batteries at full charge...on all other devices they read 4.2 and on my vamo it will read 4.1 then after the first hit of vape be at 4v from then on..seems like the voltage meter is wrong on the vamo...dont know why though
  7. AlB53

    AlB53 Super Member Verified Member ECF Veteran

    Supporting member
    Feb 7, 2012
    Rome NY
    get a digital multimer to check your charger and your batterys,, and don't cheap out on your batterys and charger, spend the bucks!
  8. RGLP4Lyfe

    RGLP4Lyfe Ultra Member Verified Member ECF Veteran

    Oct 29, 2014
    Its gotta be the charger! Invest in a better one! I got a efest luc v4 replacing my nitecore! Much better and was only 36 shipped to my door!

    Allday setup: CNA 30w- Magma<3
  9. James467809

    James467809 Full Member

    Oct 24, 2014
    its not the charger after all..its my vamo..but i don't know why it reads all batteries at 4v full charge
  10. crazywhiteboy92

    crazywhiteboy92 Full Member Verified Member

    Dec 4, 2013
    Moorefield, WV
    I need to get the intellicharger that is digital screen and shows voltage
  11. Rickajho

    Rickajho ECF Guru Verified Member ECF Veteran

    Apr 23, 2011
    Boston MA
    Without telling us what batteries and what charger are involved it's impossible to answer that question.
  12. EBates

    EBates Vaping Master ECF Veteran

    Nov 4, 2013
    I've owned both the Efest LUC and the Nitecore I4 and both are excellent chargers.
  13. Madcowvt

    Madcowvt Full Member Verified Member

    Sep 29, 2014
    Colchester VT
    Your device is simply 'rounding' to the closest whole number. So if it's 4.1 or 4.2 it is showing 4. If you were to check it in a multimeter it would say 4.2 I bet. Well, I don't bet since there are other variables but ..... Probably that's the case. :)
  14. granolaboy

    granolaboy Super Member Verified Member ECF Veteran

    May 13, 2014
    Skidegate, BC, Canada
    Vamo's are pretty inaccurate devices all around. No big surprise there...
  15. FFPetz

    FFPetz Full Member

    Oct 30, 2014
    Trenton, NJ
    There tends to be some voltage drop that also occurs. Typically most high end chargers compensate for that. Many devices that take batteries do not. Your device could be rounding the voltage that it's actually putting out at the contact.
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