better explanation of how to read batteries

[enrapha]

Ive been trying to figure this out for some time on the explanation of how to read these batteries. I ordered some batteries rated as high drain 35amp 2600mah 18650 batteries. I understand that means it can provide 2.6amps for an hour. What I dont understand is how the amperage plays in. is the 35amps the highest draw that can be pulled form it? if thats the case then would a 3600mah batteries only last about ten minutes at a 35amp draw? and how do I figure out what my sub-ohm build is pulling?

right now im using a nemesis clone with an igo w3 quad coil build(.4ohms each)

thanks for the help!
Christian.

 

[State O' Flux]

I ordered some batteries rated as high drain 35amp 2600mah 18650 batteries.
I understand that means it can provide 2.6amps for an hour.
What I dont understand is how the amperage plays in. is the 35amps the highest draw that can be pulled form it? if thats the case then would a 3600mah batteries only last about ten minutes at a 35amp draw? and how do I figure out what my sub-ohm build is pulling?

right now im using a nemesis clone with an igo w3 quad coil build(.4ohms each)

thanks for the help!
Christian.

Hi Christian... welcome to ECF.

First, I suggest you temporarily refrain from using the rig you have. Thanks.

Second, let me ask you a few questions.

• What brand and chemistry batteries are these?
• Do you know, based on the information of a W3 with quad 0.4Ω gross resistance coils you've provided, what your net resistance is?
• Are these coils wired in series, or parallel?
• Have you run the numbers, using, oh, say 3.8 to 4.2 volts as a constant, through an Ohm's Law calculator to determine if you're vaping safely?
• Have you considered a margin of safety?
• Do you own a ohm meter, or DMM?

I'm asking these questions because, rather than spit and sputter, rant and rave at you about how (potentially) dangerous your current set-up is... you may actually be OK. The answers to the above questions will tell all.

Cheers

 

[Bunnykiller]

as far as the battery ratings, a 35A battery will deliver "35" amps of power for a peak rating, not continious. the 2600mAh is an average rating delivering power over the life of usable service. So, basically a 2600mAh battery will deliver 2.6 amps of power over 1 hours worth of drain with the properly designed load. If the load is "milder", the battery will last longer, and conversely, if the load is "harsh" the battery life will be shorter.
Not knowing if you have your coils in series or parallel makes it difficult to determine how long your battery could last before needing a recharge. Im hoping you dont have the 4 coils in parallel... that would be almost a dead short and your battery wont be happy...

 

[Baditude]

State O Flux was far gentler than I was going to be on the original poster. Nice job on the restraint.

The feeling on this forum is that certain knowledge should be known before you attempt advanced practices like sub-ohm rebuildables. There is no way for us to know how experienced of a vaper you really are (you didn't say), but when your first post on the forum concerns basic elementary knowledge which pertains to what is considered advanced and potentially very dangerous practices, we get a little bent out of shape. Red flags begin to wave in our heads.

Not only are we concerned for you as an individual vaper, but also concerned about the negative publicity an unfortunate accident would create for the entire vaping community; we get enough bad press already and needlessly because of misinformation from the media. Sub-ohm vaping can be highly dangerous if you don't really know what you are doing. I find it very odd that you have the sophistication of using quad sub-ohm coils yet are asking what I would consider basic elementary questions about battery specifications.

This is why State O Flux asked his questions about your setup and to determine if you are knowledgeable enough to be running the setup you described. Having said that, we welcome your questions. Our primary goal is to educate fellow vapers, and for them to be able to vape safely with no harm to themselves or others.

_______________________________________________​

The mAh rating is an attempt to make an estimate about how long a battery will last on a charge. Manufacturers of batteries come up with this rating, which may or may not be accurate as they can list any number they wish. Some manufacturers are known to over-state their mAh ratings as an advertising ploy to make their batteries seem better than their competitors.

In layman's terms, 100 mAh = 1 hour battery use. 2000 mAh is roughly 20 hours battery time. 2600 mAh is roughly 26 hours battery time. Of course, actual battery time is dependent upon many factors: ie the load on the battery and the frequency of use.

The most important specification of a battery, in terms of how we use the specification in sub-ohm vaping, is the amps in continuous discharge rating. When you make a coil and measure its ohm rating (resistance rating), you must use the Ohm's Law Calculator to be certain that the coil will not drain more amps (current) than the battery's amps in continuous discharge. You should already know your battery's amp rating specification even before attempting sub-ohm building. A coil which will pull more amps than the battery has can result in things like angry hissing mods to missing fingers and teeth, if you get my drift. If you value your face and hands...


Deeper Understanding of Mod Batteries

http://www.e-cigarette-forum.com/forum/batteries-chargers/546143-batteries-chargers-multi-meters-forum.html

 

[State O' Flux]

State O Flux - Nice job on the restraint.

Thank you. "Restraint" is my middle name.

.. OK... maybe not.

 

[enrapha]

Hi Christian... welcome to ECF.

First, I suggest you temporarily refrain from using the rig you have. Thanks.

Second, let me ask you a few questions.

• What brand and chemistry batteries are these?
• Do you know, based on the information of a W3 with quad 0.4Ω gross resistance coils you've provided, what your net resistance is?
• Are these coils wired in series, or parallel?
• Have you run the numbers, using, oh, say 3.8 to 4.2 volts as a constant, through an Ohm's Law calculator to determine if you're vaping safely?
• Have you considered a margin of safety?
• Do you own a ohm meter, or DMM?

I'm asking these questions because, rather than spit and sputter, rant and rave at you about how (potentially) dangerous your current set-up is... you may actually be OK. The answers to the above questions will tell all.

Cheers

sure,

• I was asking about the batteries i was looking at which were lg 18650he2 and a chemestry of Li[NiMnCo]O2 (H-NMC) / Graphite + SiO; the ones im currently using are sony us18650vtc5 and I believe are li-ion.
• my multimeter reads 0.4 from terminal to terminal and my rmm reads .28
• The coils are in parallel (using the posts provided)
• through ohms law calculator, my battery is running 4.03v, my resistance is .26, so im running 15.5amps with a power of 62.465
• I'm certain i have a large margin of safety
• I have both

If I'm mistaken on anything please let me know.

 

[enrapha]

Also in reply to experience, Ive been vaping for almost a year now, started with simple cartomizers and slowly worked my way up to dual microcoils. I started using this four coil mod about a month ago and haven't had any issues with it. battery stays fairly cool.

 

[State O' Flux]

sure,

• I was asking about the batteries i was looking at which were lg 18650he2 and a chemestry of Li[NiMnCo]O2 (H-NMC) / Graphite + SiO; the ones im currently using are sony us18650vtc5 and I believe are li-ion.
  I have no personal experiance with the LG battery, so... courtesy the KidneyPuncher listing, we find the following: Official Max Continuous Discharge Current: 20 amps - We have the offical internal test data from LG showing this battery handling a continuous 35 amp discharge load - That said, The manufacturer has stated that this is a "20 amp battery" and you should treat it as such until you have information that proves it can handle more.
  
  
• my multimeter reads 0.4 from terminal to terminal and my rmm reads .28
• The coils are in series
• through ohms law calculator, my battery is running 4.03v, my resistance is .26, so im running 15.5amps with a power of 62.465
• I'm certain i have a large margin of safety
• I have both

If I'm mistaken on anything please let me know.

Wonderful Christian! The additional information provided looks good to me, which justifies the "benefit of the doubt" level of restraint in my initial post. Your more detailed follow-up proves that you are both knowledgeable, and following safe vaping protocols... which to be honest, is a nice change of pace. Thanks!

With the influx of cool looking, cheap Chinese mech and RBA clones... there are far too many brand new vapists, where knowledge is bypassed on the way to the potential dangers of unregulated mechs and low resistance.
When we (Bad, BK, myself and many others) see a post such as yours, where resistance may prove to be dangerously low, and the OP's direction of inquiry seems mismatched to that hint of ragged edge resistance... we get very concerned for the OPs safety.

To answer your original inquiry, if you click my first sig line link, it will take you to "Steam Engine"... where you'll find a handy battery drain calculator that may provide you with the data you're looking for.

Cheers

 

[enrapha]

anytime! I'm always looking for more knowledge. because frankly, nobody knows everything and anything! thanks for the answer to my questions as well as looking out for me!

I would show a photo of my mod but it keeps telling me its not allowed lol.

 

[State O' Flux]

thanks for the answer to my questions as well as looking out for me!

I would show a photo of my mod but it keeps telling me its not allowed lol.

Sure thing.

I imagine, like most ECF "features" for new members, there's a minimum post count before photos can be loaded. So... start typing.