True or False: Regulated box mods don't need high discharge batteries when sub ohming

[IJLimagery]

Atty pops, question: what's a buck mod?
also, what box mod do you use?

I am starting to wonder what I'm doing wrong. everybody seems to be getting much more capacity that I am. I have a puff counter on my dovpo so, I just stuck my 2 green batteries, freshly charged off my Nitecore i4 charger, and will report back with specifics.

For the record, I am using an Orchid tank right now and the dovpo shows that I built a 0.6 ohm build using 26 guage a1 kanthal. I remember it being... 8 or 9 wraps around one of the smaller mini screwdrivers that I have. It's a dual coil build. I have set the wattage to 20 watts.

Okay so it's been about 6 hours since I put in those 2 fresh batteries. the puff count is at 503. Wow, that's quite high puff count, isn't it?!

am I doing something wrong? build at a higher resistance?

 

[InfinityzeN]

IJLimagery
A Buck Converter is a voltage step down and current (amps) step up converter. They are also called a Step Down Converter.
A Boost Converter steps the voltage up and current down. Also calle a Step Up Converter.
A Buck & Boost Converter can do both.

 

[AttyPops]

Atty pops, question: what's a buck mod?
also, what box mod do you use?

I am starting to wonder what I'm doing wrong. everybody seems to be getting much more capacity that I am. I have a puff counter on my dovpo so, I just stuck my 2 green batteries, freshly charged off my Nitecore i4 charger, and will report back with specifics.

For the record, I am using an Orchid tank right now and the dovpo shows that I built a 0.6 ohm build using 26 guage a1 kanthal. I remember it being... 8 or 9 wraps around one of the smaller mini screwdrivers that I have. It's a dual coil build. I have set the wattage to 20 watts.

Okay so it's been about 6 hours since I put in those 2 fresh batteries. the puff count is at 503. Wow, that's quite high puff count, isn't it?!

am I doing something wrong? build at a higher resistance?

@InfinityzeN Thx for explaining that...I should have put more info in my post I guess.

@IJLimagery

I'm a bit confused since you start out saying others get more capacity, then end saying you have quite a high puff count. So if by capacity you mean watts, that's going to be A) Battery limitation and/or B) Device limits.

I've used various box mods...doesn't matter, most are homemade.
All issues with battery life are probably due to wattage used. That 26 ga wire takes a lot to heat up. But you're "only" using 20 watts...many use more.

For example, if you use stock coils and higher ohms, like 1.8 ohms (stock are about 32 or 34 ga wire) your battery might last all day or most of it. If you're using 26 ga wire you're basically trying to heat a coat-hanger wire and wondering why you need to change batteries constantly. In your case, you want to know why you get more than you think. (I'm not sure of your question) Well, it's all about the watts used for that battery drain issue. Of course, batteries differ a bit too.

So, you get the idea. You'll have to do the wattage calculation. The stock stuff runs about 7 or 8 watts. The heavy ga wire ....IDK...depends on your build....can be 5 or 10 times more watts.

Now, the normal caution is to use only as many watts as it takes for it to vaporize the juice, but general recommendation is to not get too hot. So start low and work up. That way, you may avoid "nasties" being produced, acrolein and such.

Now batteries have a max amp limit...you should not exceed that. Different batteries are different...you'll have to check the specs on your batteries.

Same with regulated devices...they only put out so many watts, they have amp limits. Check the limits for your device.

Check around and see what others are doing. I don't vape SLR, I don't personally feel the need and I'm not using mechs, I'm using regulated mods. Others can help you more.

 

[edyle]

Ok... so on the FT discussion page... there is a guy that said he asked Dovpo and they confirmed that the batteries are in SERIES. that's good, right?

from Infinite's comment: Series stacks the voltage of all cells. However to meet that voltage the capacity is not stacked. It also puts the most stress on your cells.

so, I'm getting 7.4 Volts.... but the capacity is not stacked? that would explain why I'm not experiencing a lot better battery life now that I have a 2 18650mAh device. serious bummer. :T

Looks like I bought the wrong device. If my goal is a device that will allow for longer battery life so I don't have to carry around multiple batteries, I should look for a dual 18650 device that is run in parrallel, and buy high drain batteries. is this right? I was looking at the IPV 3 but found that it doesn't have a pass through ability. (I leave a mini usb charger at my desk at work so I can pass through during the day)

from Rurwin's comment: "In series, the battery voltage is higher so the drawn current is smaller for a given output voltage. In parallel half the current is drawn from each battery so the requirements for each battery are smaller. Maths being the beautiful thing it is, everything cancels out and the formula works"
may I ask... what formula are you referring to? V = I x R ?

so, in series V = 7.4 at minimum... I'm running a 0.5 ohm dual coil build... so, if ... V / R = I I am drawing... 14.8 Amps?
that doesn't sound right.. hmm.... that would mean by running in series... you'd increase current. why would anyone wanna do that? does more current increase power therefore 'quality of vape'?

from this site: Electrical Formulas

P = Vsquared / R so... wired in series, devices, such as the Dovpo, are designed to increase power capability at the expense of current draw? but then... why is the Dovpo's maximum wattage limited at 30 watts? (7.4 x 7.4) / 0.5 = 109.52 watts

is this where the 'step down' occurs? if so, what purpose does it serve?

I'm so confused.

Most regulated dual/multiple battery mods use series;
so far the only one I know of that uses parallel batts is vaporflask

 

[IJLimagery]

Atty Pops, thanks for your comments. I was surprised at my puff count and well, I started writing that post at 5:30pm when I stuck the batteries in and ended it when the batteries drained. I hadn't planned on that. 500 in 6 hours was a surprise to me. that's more than 80 puffs per hour. almost 1.5 puffs per minute. I am curious, is this WAY above average?
I've always vaped off of a rda. are a lot of folks vaping off of one of those... atomizer/clearomizers that you have to buy cartridges for on a box mod? Have they come a long ways for vape production? My vape community is filled with cloud chasers and the norm is far more towards rda's and rta's that are rebuildable.
oh, sorry I wasn't clear. by capacity I meant battery capacity / life. as my example showed, I'm finished with 2 18650's in 6 hours. it means that I have to bring an extra set of batteries if I'm out of the house for more than 6 hours.
I will try building at a higher resistance. and learn from your comment that I am using clothes hangers for wire. I'll give 30 guage a shot and see if that helps and how it affects the vape. thanks for that.
I'm curious, Catalina, when you say you get 2 days of use from your ipv3. Do you have any idea of your puff count at the end of 2 days? also, what resistance are you vaping at to achieve this? I'd sure like to be able to duplicate 2 days of vaping on 2 batteries.
I will play with my builds. thanks to all for their comments!

 

[smacksy]

I use the 38A 2600 mAh 18650 batts from IMREN in my IPV3..
They perform really well and I'm comfortable that are actually over the spec of using at least 30A high drain batts in this mod..Vaping a .3 ohm build at 75w the dual batts easily last two days on a single charge..
Vaping the .5 ohm Atlantis at 35w I get almost 3.5 days on a single charge..further I've installed an inline volt meter between the mod and RDA firing the coils without cotton and the meter read 4.9v and was consistent without sag for 10 test firings in a row..something I could only dream about using a mech..

Sent from my DROID RAZR HD using Tapatalk

 

[classwife]

Moved to Variable Voltage APV Discussion from APV Discussion