Another battery math question

[ZeroOhms]

On 18650 with 3.7v @ 2000mAh, 1.85ohms coil get 1 hour battery life. (3.7v / 2A)
If I bring the resistance down to 1.3ohms and run at same 3.7v, it would be running at 2.84A. (3.7v/1.3ohms)

Question is, how long would the battery last? Would this need to be converted to wattage per hour first or just a straight proportional ratio between amp?

 

[State O' Flux]

So... 2000 ÷ 2800 = 0.71 hours, but either way, you're doing math for continuous discharge, which would not be the case.

 

[ZeroOhms]

Thanks. So it would come out to around 40minutes. If we push to .5ohms or below, we are looking at 10 - 15 minutes!
If an average draw is 5 secs, 120 - 180 puffs without any firing overhead. Spread it out to 4 puffs per minute. 30 - 40 minutes per charge?!?! How many batteries do sub ohm people carry?

 

[State O' Flux]

Thanks. So it would come out to around 40minutes. If we push to .5ohms or below, we are looking at 10 - 15 minutes!
If an average draw is 5 secs, 120 - 180 puffs without any firing overhead. Spread it out to 4 puffs per minute. 30 - 40 minutes per charge?!?! How many batteries do sub ohm people carry?

When you find someone who takes four 5+ sec. draws a minute for 15 minutes consecutively... let me know.

Depending on the atty and the juice mg/ml of nicotine concentration, which has quite a bearing on the whole thing... I tend to take 2-3 10 second draws, then park it - or pick up another mech/RDA or APV/carto tank, and hit that a few times. By then, I'm good for at least 20-30 minutes.

Seriously, I think you may be putting too much concern on the whole issue. Most the sub-ohmers I know, myself included, do it mostly at home. I seldom carry a sub-ohm out, and if I do, it's usually a Russian 91% or KFL+ with a just a 0.7~0.9Ω coil. Usually, my walkabout rig is a MVP2 with a 2.0Ω IKV in a IBT carto tank.

 

[bzmotoninja83]

I sub ohm and only carry one battery/device with me all day..... I Vape during breaks and lunch at work.

Sent from my LG-D800 using Xparent Red Tapatalk 2

 

[ZeroOhms]

When you find someone who takes four 5+ sec. draws a minute for 15 minutes consecutively... let me know.

Depending on the atty and the juice mg/ml of nicotine concentration, which has quite a bearing on the whole thing... I tend to take 2-3 10 second draws, then park it - or pick up another mech/RDA or APV/carto tank, and hit that a few times. By then, I'm good for at least 20-30 minutes.

Seriously, I think you may be putting too much concern on the whole issue. Most the sub-ohmers I know, myself included, do it mostly at home. I seldom carry a sub-ohm out, and if I do, it's usually a Russian 91% or KFL+ with a just a 0.7~0.9Ω coil. Usually, my walkabout rig is a MVP2 with a 2.0Ω IKV in a IBT carto tank.

I chain vape, so maybe not a good example.
It isn't a concern (as batteries are cheap), but a curiosity. I like some of my juice at .8, so I can see why some people are doing it. But, like you, I rotate through many other toppers throughout the day. So, I don't notice the battery discharge rate that much.
But I am seeing lots of sub ohm users touting it is the only way to vape!?! If I used just the sub ohm topper all day, I would be going through a dozen or more batteries a day.
So, trying to figure out if the sub ohm just a quick picker upper or truly an all day vape topper.

 

[danimal40]

Im with State. I have my aqua set at .8 or .9 ohms and hit it like 3 or 4 times then put it down. I then vape my 1.6 clearo on a SVD for chain vaping. Any more then 3 or 4 hits and im lightheaded maybe if I wasn't using 24mg I could use it more

 

[State O' Flux]

So, trying to figure out if the sub ohm just a quick picker upper or truly an all day vape topper.

I guess then, the question to ask, in the Rebuildable Atomizer Systems sub-forum... who sub-ohms all day, in doors and out, 24/7 etc etc bla bla bla.

I don't think you'll get too many deep sub-Ω RDA types to say "hey! that's me!" - more folks running 0.7Ω and up, in assorted pressure differential RBAs and gennys.

 

[State O' Flux]

Any more then 3 or 4 hits and im lightheaded maybe if I wasn't using 24mg I could use it more

Ha ha ha... ahhh. That hit me right, it did.