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Battery went down to 2.91 volts...

Discussion in 'Battery Issues' started by shortpballer, Nov 16, 2013.

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  1. shortpballer

    shortpballer Senior Member Verified Member ECF Veteran

    Feb 3, 2013
    Los Angeles
    Just used my battery a little more than expected due getting a dual coil atomizer and lower ohms. Didn't realize this but vaped for about normal time, and when battery went on to the charger it was at 2.91 volts. Is this a huge problem? Or just try to not do this anymore?
     
  2. DaveP

    DaveP PV Master & Musician ECF Veteran

    May 22, 2010
    Central GA
    You didn't say what PV you were vaping, but I'm thinking a mech. Normal cutoff is 3.2v to 3.4v. Li-ion and lMR batteries don't respond well to discharge below 3 volts. Some will cease to function forever if you discharge to 2.5v.

    Normally, there's a point where the vape volume and flavor drops off noticeably. That happens on a mech about 3.2v to 3.4v and I notice it before that point. 2.9v isn't a safety problem, but you might want to charge when it hits 3.4v to 3.5v for the best life from your batteries.

    Some time spent here will bring you up to speed on batteries quickly.
    Basic to Advanced Battery Information from Battery University
     
  3. shortpballer

    shortpballer Senior Member Verified Member ECF Veteran

    Feb 3, 2013
    Los Angeles
    Normal I recharge my batteries at 3.6 volts.

    You say that I should only charge my batteries to 3.4-3.5 volts? If I do this they don't last long at all...
     
  4. shortpballer

    shortpballer Senior Member Verified Member ECF Veteran

    Feb 3, 2013
    Los Angeles
    Oh, and you are correct, I'm using a mech mod.

     
  5. Switched

    Switched ECF Guru ECF Veteran

    Feb 18, 2010
    Dartmouth, NS Canada
    .... the price you pay for vaping dual or sub-ohm coils.

    As Dave stated, you will notice a loss of production before hitting the LVT (low voltage threshold). Most electronic devices won't permit you to vape below 3.2V
     
  6. Rader2146

    Rader2146 Ultra Member Verified Member ECF Veteran

    Mar 11, 2012
    Waco, TX
    What battery are you using?

    IMR, Hybrids, and most high quality ICR's and just fine down to 2.5V and can be recovered (with a good charger) with minimal damage from a short stint down to 2.0v. Below 2.0v they should be tossed.
     
  7. DaveP

    DaveP PV Master & Musician ECF Veteran

    May 22, 2010
    Central GA
    I caught that on the re-read and edited before I saw your post. :)

    I intended to say that long battery life depends on not stressing the battery. Putting it on the charger when it drains down in the 3.4v to 3.5v range will extend the overall life. Most if not all chargers green light at 4.1v to 4.2v.
     
  8. Traver

    Traver Ultra Member ECF Veteran

    Supporting member
    Oct 28, 2010
    WV
    My understanding is that to get the longest life life out of a battery is to charge to 4.05 a and recharge at 3.6 volts. This isn't about safety and the only reason to do is to prolong the battery life. Too much trouble for me.
    I charge mine to 4.19 because that's wht my charger does and recharge at 3.6.
     
  9. DaveP

    DaveP PV Master & Musician ECF Veteran

    May 22, 2010
    Central GA
    I rarely let mine go to cutoff. My Provari will go to 3.2 and the Zmax cuts off at 3.3. I try to always get it back on the charger by 3.5v. If I'm headed out the door, I will swap sooner just to get a fresh battery in the tube and I always carry a battery box with one fresh battery and a filled carto for backup. That's my "extra pack" just in case I get waylaid and my 3ml bottle is empty.
     
  10. Ryedan

    Ryedan ECF Guru Verified Member ECF Veteran

    Mar 31, 2012
    Ontario, Canada
    It's not a big problem. Charge it and vape on. I have twice taken a MNKE 18650 to 2.7V and had no change in performance afterwards. I use a Xtar WP2 charger.
     
  11. shortpballer

    shortpballer Senior Member Verified Member ECF Veteran

    Feb 3, 2013
    Los Angeles
    Thanks everyone for your responses! Guess I gotta get used to dual coil. I'm goin through 4-5 18350 batteries per day. Vaping around 4 mL... Is this normal with AW batteries? I've been hearin most people use 2 batteries a day...


    Sent from my iPhone using Tapatalk - now Free
     
  12. WarHawk-AVG

    WarHawk-AVG Vaping Master ECF Veteran

    Jul 27, 2013
    H-Town
    Charging Lithium-Ion Batteries
    How to Prolong Lithium-based Batteries - Battery University

    All depends on much wattage you are pushing and your vaping technique, AND the mAh of the battery...if you are like my buddy that takes a simple puff, then his 650mAh eGo does fine..but if you vape like a freight train like I do...a 1300mAh will only last you 12 hours or so, and depending on if you run at 6 watts or 15watts will also determine how long the charge lasts

    Just make sure you keep your spares in a plastic safety carrying case!
     
  13. shortpballer

    shortpballer Senior Member Verified Member ECF Veteran

    Feb 3, 2013
    Los Angeles
    Thats why I ask, I hear people always saying that one battery will last them 12 hours...
    My batteries last my like an hour of heaving vaping MAX. I'm using 18350 on .8ohms maybe thats why? And I definitely do not take small puffs ;)

    Just find it weird that I go through 5 18350's in a day...

     
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