14500 battery question
- Thread starter mustanggt98
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"Moderate" isn't an accurate term. What is moderate for you might be heavy or light for someone else. How many mls per day would be a better way to look at it, but still not completely accurate because it depends on other factors as well.
Regardless, a 14500 is not going to last a full day for anyone that vapes more than 1.5 mls a day or so. A full day, and over 2 mls of liquid, you're pretty much looking at an 18650...
a 14500, 900mah battery?
3.7 average volts into a 3 ohm (approx) 901 atty gives about 1.23 amps.
The battery would be able to provide that current for 44 minutes, or 527 five second vapes.
At 3 vapes per minute that would be 3 continuous hours of vaping.
But some people report all day vaping from a 14500, go figure.
My wife used a 14500 and two would last her one day.
I go through a pair of 18650 a day, minimum.
Are you a VaporHog?
3.7 average volts into a 3 ohm (approx) 901 atty gives about 1.23 amps.
The battery would be able to provide that current for 44 minutes, or 527 five second vapes.
At 3 vapes per minute that would be 3 continuous hours of vaping.
But some people report all day vaping from a 14500, go figure.
My wife used a 14500 and two would last her one day.
I go through a pair of 18650 a day, minimum.
Are you a VaporHog?
Well i wouldnt consider my self a light or a heavy user. Probably around 1.5-2mls a day though is my best quess. Will a 901 use a 18650 without any problems?
That's about where I am, slightly less even. That would be 2 14500s for me, so if you do the math with the 18650 it should work -- mah-wise. But, you're talking about a big mod now to house the big battery.
Yes, you can see how much larger a Big Mod for the 18650 is compared to the 905 which only takes a 14500.
Thanks for the info guys, the size doesnt bother me at all. Im just trying to improve the battery life by quite a bit.
Ah, so then you're good to go with the 18650. =)
Nice mod, Rocketman. You did a great job keeping that big mod very small. Kudos.
Nice mod, Rocketman. You did a great job keeping that big mod very small. Kudos.
Old thread, but still open. So the question would be, how did you do the math to figure out time to vape? Based on 900mah 3.7v and 3 ohms of resistance? How does this break down? I am curious as to finding a battery at 3000mah 3.7v li-on rechargeable, does it exist?
mustangt98, a 14500 battery is about the size of a standard AA battery. They're also pretty cheap. Couldn't you just put a spare or two in your pocket?
Panasonic has released a real 3000 mah (3100 typical, 3000 minimum) 18650. But it costs more.
2600mah is readily available for about $12 to $15.
THe Big Red shown in that old post has 3000 on the label but it isn't. Maybe 2200 to 2400 and the protection board will limit the cell to 2.5 to 3 amps MAX. With a LR atty/carto they have a tendency to cut out.
For your other question, time to vape, the best way to figure your specific mah needs is to use the e-cigs you already have to scale where you want to go. If, for example, you go through 8 little 510 batteries a day the 180mah X 8 is about 1500mah. Or, if you go through 4 charges on a 650 mah eGo then 2400 to 2600mah is what you need a day.
As far as the number of vapes, figure the amps your atty will draw, figure milliamp seconds, and convert to milliamp hours.
Trying to figure by the mAh rating can be a bit difficult. Although some cells like the Panasonic 2900mAh sounds great, much of those mAhs will be of no use to us as it's at a voltage that's too low for decent vaping.
Take a look at this 18650 battery load test.
The dots are on the 2A drain trace, which is about the equivalent of a 2Ω atty.
The RED dot is at 3.4V and the YELLOW at 3.3V. Pick ur poison.
The often overlooked Tenergy2600 is the leader at both and is also the least expensive of the group.
Note the expensive AW2900 is in fact a Panasonic 2900 with a protection circuit added and re-wrapped by AW.
Folks also like to compare a 14500's 900mAh to let say an eGo.
Here is a UltraFire 900mAh 14500 tested at a very modest 0.8A drain, and note the cut-off is at a too low to vape 3V.
Capacity: 592mAh.
Food for thought.
Take a look at this 18650 battery load test.
The dots are on the 2A drain trace, which is about the equivalent of a 2Ω atty.
The RED dot is at 3.4V and the YELLOW at 3.3V. Pick ur poison.
The often overlooked Tenergy2600 is the leader at both and is also the least expensive of the group.
Note the expensive AW2900 is in fact a Panasonic 2900 with a protection circuit added and re-wrapped by AW.
Folks also like to compare a 14500's 900mAh to let say an eGo.
Here is a UltraFire 900mAh 14500 tested at a very modest 0.8A drain, and note the cut-off is at a too low to vape 3V.
Capacity: 592mAh.
Food for thought.
Well, You are wrong 
Expensive is always better.
How in the world can you compare a $6 cell to a $20 cell?
Expensive is always better.How in the world can you compare a $6 cell to a $20 cell?
You don't happen to have a similar comparison for 14500s do you? That is very helpful, thank you for posting it.
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