Battery life on mechs with RBAs - Only getting one hour.
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Your battery is putting out max voltage, so you will experience a drop off, however it will continue to function just not as well as a freshly charged battery. If you want to extend your battery life, I would consider a kick v1 or v2. I've found the kick really extends my battery life at least by a couple hours. I'm running the sony VTC 2100 mAh as well. Also, your resistance is fairly low, so it will drain your battery relatively quickly as well.
From my experience, if you really want more battery life out of a mech setup, consider getting a copper mod, such as the copper nemesis or something like it. The voltage drop is so low that you feel the battery drop off way later than it would on a stainless steel mod. I would also consider, since your running .9 ohms which isnt really all that crazy, the new sony VTC5's 2600mah or there are new panasonic 3200mah 10 amp batteries out.
I have a copper mod + vtc5's. I usually build around 0.35 ohm dual coil. I can get around 2 hours 30 min of vape time before I switch battery. If i use my kayfun, which is 0.8 ohm single coil. It can last me near 4 hours.
The upgrade to a copper mod really helped my battery life.
I have a copper mod + vtc5's. I usually build around 0.35 ohm dual coil. I can get around 2 hours 30 min of vape time before I switch battery. If i use my kayfun, which is 0.8 ohm single coil. It can last me near 4 hours.
The upgrade to a copper mod really helped my battery life.
Wow, I can't think of what is causing your batteries to sag that fast. I've not seen that in any of my mechs with any of my RBA's. I sit chain vaping for up to four hours on a battery at .7 ohm. I use Efest 2000 mAh IMR's and have 8 of them I rotate through the mech, and I use a Nitecore i2 charger.
Okay, maybe it's because you are using dual coils? Yeah, I'll bet that's it.
Okay, maybe it's because you are using dual coils? Yeah, I'll bet that's it.
Why would a copper body help? Just a serious question?
I guess just the contact pin and spring at the bottom of copper (or any other high conductive metal) should suffice??
A copper mod would help because voltage drop would be kept at a minimum.
Therefore lets just take for example my copper nemesis @ 0.5 ohm has about a .12 drop. With a fresh sony VTC5 at 4.2, i would be getting 4.08v to my coil. Batteries will keep performing worse and worse as you vape, however because a copper mod minimizes voltage drop, if I am vaping my battery at lets say 3.8v, I would still be getting 3.68v supplied to my coil. Which, to me is still entirely vapeable. However @ 3.8v in a stainless steel mod, its going to feel like 3.2v. Which is normal for a stainless steel mod at low ohms to have a high voltage drop of 0.4-0.6 (to my experience).
even a fresh battery @ 4.2 in a stainless mod with low ohms, if it had a high voltage drop, It would already feel like your vaping @ 3.8v.
So basically if your mod has really low voltage drop, it will "feel" like it takes much longer for your battery to basically get to the point that it feels weak and needs to be recharged.
Contacts do matter as well. I recently have been trying to get copper everything just for the fact of low voltage drop. I have a few mods that are stainless steel/brass with silver plated brass contacts and they do not hold a candle to a full copper mod with copper contacts (or silver plated copper contacts). I can literally feel how much more ...... off a copper mod is when firing.
Even a hybrid adapter will minimize voltage drop even further.
Your problem could be as simple as cleaning your contacts / replacing your batteries.
Of course, im only speaking from my own experience about all this. Im sure someone might / will disagree with me. Your mileage may vary.
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Dirty contacts and increased resistance in the mod would really EXTEND his battery life.....(Basically adding to the ohm rating of the circuit as a whole...although the efficiency of the coil is less than in a well conducting mod).
How old is the battery? They degrade with use/charges.
Also, I assume from your description that you have two 1.8 ohm coils leaving .9 ohm as a net-result. (If you have two .9 ohm coils...that's a .45 ohm setup...and would reduce the effective use time even more than you realized.)
At what voltage are you recharging?
How old is the battery? They degrade with use/charges.
Also, I assume from your description that you have two 1.8 ohm coils leaving .9 ohm as a net-result. (If you have two .9 ohm coils...that's a .45 ohm setup...and would reduce the effective use time even more than you realized.)
At what voltage are you recharging?
what attypops said - if you decrease the resistance of the mod, you decrease the resistance of the entire system, and your battery drains FASTER than it would with higher resistance.
I'll add that Illitirit made a good point above though....bad contacts/high voltage drop makes you think you need to recharge sooner than you do.
interesting but do you have numbers that show how much other mods voltage drop is and how much difference it is?
Geez, I get 7-8 hours out of an 18490.
Knew there was a reason that I set these RDAs up to run on a 2 ohm coil
I also get 3 hits/drop of juise instead of using up 3 drops/hit.
I don't do sub ohm anymore simply because I found it to be the least efficient way to vape that there is.
Knew there was a reason that I set these RDAs up to run on a 2 ohm coil
I also get 3 hits/drop of juise instead of using up 3 drops/hit.
I don't do sub ohm anymore simply because I found it to be the least efficient way to vape that there is.
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Geez, I get 7-8 hours out of an 18490.
Knew there was a reason that I set these RDAs up to run on a 2 ohm coil
I also get 3 hits/drop of juise instead of using up 3 drops/hit.
I don't do sub ohm anymore simply because I found it to be the least efficient way to vape that there is.
Yea, wow. I get about the same out of a mnke 18650 at 1.6ohm
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