18490 battery question

[Akrotiri]

A stabwood box mod caught my eye, I really like its small form factor and its Aulus 50watt board but the mod runs on 18490's only. I vape at 14-15 watts; never higher and all my 18650 mods last me almost 2 full days. Based on that can anyone offer any advice if a 18490(AW IMR 18490 1200mah) will last me about 10-12 hrs of use vaping @ 14watts/1.2ohms.

 

[Darth Omerta]

@Mooch

Im hoping this will bring Mooch along to answer this question! Im not entirely sure how to calculate an expected runtime based on your vaping style and being a bit of a math junkie I would love to know the math here.

 

[Mooch]

A stabwood box mod caught my eye, I really like its small form factor and its Aulus 50watt board but the mod runs on 18490's only. I vape at 14-15 watts; never higher and all my 18650 mods last me almost 2 full days. Based on that can anyone offer any advice if a 18490(AW IMR 18490 1200mah) will last me about 10-12 hrs of use vaping @ 14watts/1.2ohms.

That fundamentally depends on the length and frequency of your draws and the number of batteries. Not easy to calculate but perhaps someone with experience with a similar setup will chime in.

 

[Akrotiri]

That fundamentally depends on the length and frequency of your draws and the number of batteries. Not easy to calculate but perhaps someone with experience with a similar setup will chime in.

My draws are about 3-4 seconds.

I was talking about only one battery though. If I planned on carrying an extra 18490 battery I wouldn't even be concerned as to how long only one would last thru the day.

 

[Darth Omerta]

That fundamentally depends on the length and frequency of your draws and the number of batteries. Not easy to calculate but perhaps someone with experience with a similar setup will chime in.

Thanks @Mooch!

 

[sonicbomb]

I plugged the numbers into steam-engine and got 17 minutes runtime which is apparently 200 puffs. So if your target is 12 hours that's 20 puffs and hour, a puff every three minutes. All this academic and there are many variables.
Carrying a spare battery in a suitable case would be the solution, it's highly advisable to have two batteries in rotation anyway.

 

[Akrotiri]

I plugged the numbers into steam-engine and got 17 minutes runtime which is apparently 200 puffs. So if your target is 12 hours that's 20 puffs and hour, a puff every three minutes. All this academic and there are many variables.
Carrying a spare battery in a suitable case would be the solution, it's highly advisable to have two batteries in rotation anyway.

Thanks! 17minutes runtime is pretty decent.. I'll check out steam engine. Had no idea we can calculate battery runtime there too.

I almost never carry an extra battery though, portability is important to me especially in the warmer months where I'm not wearing a jacket/coat.

 

[mx360]

Hi, I joined this website purely to ask Mooch a battery question, (apologies if it is in the wrong area, But will not let me post in certain areas)....

This might be a few stupid questions, I have been doing some research on batteries and following threads where batteries are suggested for such mods etc.

So basically I brought a Smok Alien 220w, using this with an Aspire Clio, 0.4 coils and a uwell crown 0.5 coil tank, both sit around 4.1-4.3 amps at 47watts - which is fine. all good no problems! *sub ohm mostly use coils between 0.1 - 0.5*

I have LG HG2 x2 batteries set currently, Seems to work fine, but I was wondering about the Amps as the Baby beast tank that comes with it sometimes gets to 21amps at 70-80watts.... (rated to be used between 60-110w) heats up the tank abit too fast, I don't like it personally.

My Questions are, Firstly What Batteries would you suggest I use for this mod as i want to buy another set, VTC6's were suggested by ecoluxshopdirect, but they only have a 15A rating. and i think the baby beast tank would kill it. & I think my aspire and uwell crown get to around 9-10amps when used, might be wrong I have not got it in front of me currently, by the way this kit is all new and the batteries are too, Im using a nitecore D2 to charge them and not a usb cable.

Secondly, I know ecoluxshopdirect is on your trusted vendor list, but are they genuine, the website says they are and so did the guy i spoke to on the phone, but they are pretty cheap on the website, expected them to cost more, since i paid £14.50 for 2x LG HG2's

Third question, (sorry) probably being a ..... but If going upto 75-80watts requires at least 20a batteries, how the hell are you ever suppose to even attempt to use a device at 220w? without turning into a walking pipe bomb. scary. refusing to use memory mode for this reason. luckily i don't plan on ever using it over 100w anyway. but just curious.....

Any comments are appreciated, even the bad ones! And @Mooch, would just like to say thanks for all the info so far, you have made my battery decisions far less scary than i thought it was to begin with initially.

Regards

Lee

 

[Darth Omerta]

So Im assuming you've seen the chart of approved batteries that Mooch has on his blog.

The VTC6 is actually rated at 19A by Mooch. Another thing Ive heard Mooch say was that the trusted vendors list is recommended not only because they usually have authentic cells but ALSO because of how they handle it when they receive fakes. Yes, they receive fakes as well, but when they do the trusted companies find them quickly and inform the customers and make things right by exchanging the cell or refunds.

As for vaping at above 150W on a 2 cell mod, I wouldnt recommend it. At that level you're drawing around 38A from each cell. Some mod manufacturers claim their chip can handle it, and maybe they can, but what happens if there is a malfunction?

 

[Izan]

Hi Lee and Welcome.

Wall of text distilled.

"Hi,
I brought a Smok Alien 220w
I have LG HG2 x2 batteries
What Batteries would you suggest I use for this mod as I want to buy another set.
I don't plan on ever using it over 100w
I'm using a nitecore D2 to charge them.

Any comments are appreciated, even the bad ones! And @Mooch, would just like to say thanks for all the info so far, you have made my battery decisions far less scary than i thought it was to begin with initially.

Regards
Lee"

If it was me, I would order HD2's (25A-2000mAh). I use Nkon as my vendor.

Cheers
I

 

[Darth Omerta]

Personally I would recommend the Samsung 30Q. If you are not going to be vaping over 100W then you wont be pushing the battery above 18A. For this reason you can go with a really great 20A cell and get a bit more runtime with 3000mAh

 

[mx360]

Hi Darth & Izan,

Thanks for the reply, so quick also!

I probably should not have wrote an essay, Cheers for making it a little shorter! I really don't see the point in a device having the ability to fire at 220watts, if its not reachable on a safe level. But having said that I am not too bothered by that as i am happy vaping between 40-50w, sometimes 60w if i'm testing a new coil or with the baby beast tank, (too scared to go passed 100w) but as i said that heated up after a few puffs and put me well off it, flavour is not that great anyway in comparison to the aspire cleito.

Yes i did see the image above, studied it several times trying to choose the next battery from HG2, So the HD2 looks like the preferred option to me but based off the battery having 25A, in case i accidentally fire it too high or something. Samsung 30Q is the same as a HG2 is it not? but i thought LG chem was the leading battery company in regards to research/quality.

Any thoughts? I appreciate you guys taking the time to give me some advice.

Cheers
Lee

 

[mx360]

"staring at the battery chart"

So why not the VTC5 20A/2600 for or the VTC5A? 25A/2500mah? they seem idea for the range of both power and amps... but bit put off by how people seem to avoid them,

Leaning more towards the LG HD2's currently even though id probably need 4 and charge 2 each night....

 

[Darth Omerta]

So basically the way to pick a battery is to assess your needs and find something that will work for your purposes. Without getting too in depth about battery chemistry you can think of it in terms of how long you want the cell to last between charges(mAh) or Current rating(how many amps you can safely draw from the cell). If you vape at under 50W on a 2 cell mod then perhaps a lower amp rating with higher mAh might be for you, if you like it between 50W and 100W on a 2 cell mod then I recommend something in the middle range of 20A and around 3000mAh, if you like high wattage and will be vaping frequently above 100W then it might be better to look at higher amp ratings and sacrifice some of your mAh.

I usually recommend the 30Q or the HG2 for the best "all around" batteries. If you were using a mech at very low resistance(below .4ohms) then the VTC5a would be a great battery as would the HB6 HB4 or HB2 but notice how low the mAh is on those.

Seeing as you intend to vape below 100W on a 2 cell mod, you have quite a few options open to you for battery choice. Personally I would go with a cell that has a rating of around 20A and around 3000mAh which are the Samsung 30Q(20A), the VTC6(19A) and the HG2(18A).

Im not entirely sure how available VTC5a are, but they are apparently very high performing cells. Ive never tried them but would love to get a few for my mechs someday.

 

[Topwater Elvis]

I think you're way over thinking it.
Your power device uses 2 batteries, any 2 18a - 20a will power it to 100W ~ 120w safely.
Samsung 30Q
VTC6
LgHg2

2 - 25a cells 130w ~ 150w.
VTC5A
LGhd2, hd2c, hd4

VTC 5A's are fine cells if you need 25a cells.

Could be some folks are put off due to the amount of fake/counterfeit vtc4 & vtc5 but the lghg2 has as many.
The majority of the time these come from / are purchased from places that wanna make a buck & don't know much about batteries or just don't care.

Real simple, to avoid fake/counterfeit, re wrapped lower quality cells only buy from reputable vendors / dealers.

 

[mx360]

Ok, Thank you both for the reply, Elvis & Darth,

I think I will buy a set of samsung 30Q's & a set of HD2's.... or maybe the Samsung 25R5 and compare. (from ecoluxshopdirect) will decide tomorrow and see if anyone else chimes in.

I think its bad that the manufacturer cant get the batteries amp reading right, not quite sure how they manage to fail at life on that. but perhaps they are showing it as under medium pressure/testing, not blasting it at full testing for safety reasons, or just lazy.

Would be interesting to see how Mooch does work out the amp rating, probably does say in one of these posts with 50 charts but I will probably just end up staring at the screen for an hours

Darth - you made that explanation simple, Thank you.

 

[Darth Omerta]

No problem!

Mooch does explain his testing methods in great detail on his blog. He also explains why he ends up with different ratings than the manufacturer. It's not that the manufacturer is wrong or failing to properly test their batteries, but remember that these cells were never meant for vaping and Mooch is doing everyone a great service by testing them under vaping conditions.

I will post the links when I get home (at work right now and using my phone). I do not even want to attempt to explain Moochs techniques or why he produces different ratings as this is his expertise and not my own.

 

[Darth Omerta]

Here are those links....
My cell testing equipment and setup | E-Cigarette Forum
What's done for each cell test? | E-Cigarette Forum
Why do I sometimes rate a cell lower than other testers do? | E-Cigarette Forum

All of these can be found on the index for @Mooch blog:
Mooch's blog | E-Cigarette Forum

 

[Mooch]

Hi, I joined this website purely to ask Mooch a battery question, (apologies if it is in the wrong area, But will not let me post in certain areas)....

This might be a few stupid questions, I have been doing some research on batteries and following threads where batteries are suggested for such mods etc.

So basically I brought a Smok Alien 220w, using this with an Aspire Clio, 0.4 coils and a uwell crown 0.5 coil tank, both sit around 4.1-4.3 amps at 47watts - which is fine. all good no problems! *sub ohm mostly use coils between 0.1 - 0.5*

I have LG HG2 x2 batteries set currently, Seems to work fine, but I was wondering about the Amps as the Baby beast tank that comes with it sometimes gets to 21amps at 70-80watts.... (rated to be used between 60-110w) heats up the tank abit too fast, I don't like it personally.

My Questions are, Firstly What Batteries would you suggest I use for this mod as i want to buy another set, VTC6's were suggested by ecoluxshopdirect, but they only have a 15A rating. and i think the baby beast tank would kill it. & I think my aspire and uwell crown get to around 9-10amps when used, might be wrong I have not got it in front of me currently, by the way this kit is all new and the batteries are too, Im using a nitecore D2 to charge them and not a usb cable.

Secondly, I know ecoluxshopdirect is on your trusted vendor list, but are they genuine, the website says they are and so did the guy i spoke to on the phone, but they are pretty cheap on the website, expected them to cost more, since i paid £14.50 for 2x LG HG2's

Third question, (sorry) probably being a ..... but If going upto 75-80watts requires at least 20a batteries, how the hell are you ever suppose to even attempt to use a device at 220w? without turning into a walking pipe bomb. scary. refusing to use memory mode for this reason. luckily i don't plan on ever using it over 100w anyway. but just curious.....

Any comments are appreciated, even the bad ones! And @Mooch, would just like to say thanks for all the info so far, you have made my battery decisions far less scary than i thought it was to begin with initially.

Regards

Lee

Your display is showing you the coil current, not the battery current. In a multi-battery mod the battery current is a lot lower. Check this blog out:

Calculating battery current draw for a regulated mod | E-Cigarette Forum

 

[mx360]

Hi Mooch, Thanks for the reply, I imagine you are swamped with questions so I apologise but that thread confuses me, Sorry.

I read it a few times, with your example. for the sigelei 150 TC, When going above 50-55 watts I require a 25A battery like the LG-HD2 & below 50-55 watts the LG HG2 is fine, So to reach 100w-150w safely a duel 25A battery is recommended?

I am probably reading it wrong, Just to clarify what would you suggest I buy for a 220w device to safely reach 100w without a sweat? I am thinking the LG-HD2 would be perfect? But on average daily use at 47w I will keep happily using my LG-HG2 for the extra MAH. 18A is sufficient?

Thanks for your patience and advice all, I really do appreciate it!