Just a little confused

[Bean8379]

Ok so I'm looking at the cloupor mini, which says in vv mode it can go from 3.6-7v. So if I'm using a 3.7v battery, can it safely handle 7v? One of the batteries I have is a 20A and at the cloupor mini minimum resistance of 0.45 ohms, 7v comes out to 15A. Also, in wattage mode it only goes up to 30, but at 7A, 0.45 ohms is over 100w. So will it actually produce that many watts in voltage mode? Just trying to figure out the deal here so I don't blow a battery or destroy my mod.

 

[Lefty]

Coil resistance doesn't matter with a regulated mod, beyond the resistance being within the chips limits. The chip is what's making demands on the battery. It uses boost circuitry to produce the voltage over that of the battery. The Mini has an amp limit of 10 amps and of course 30 watts. Your 20 amp battery is more than sufficient.

Edit: You aren't going to get 7V with a .45 ohm coil because that would exceed the chips 30 watt limit. You would need to have a higher resistance coil for you to be able to dial up 7V.
You can get a better idea of the mods power range here, select the Cloupor Mini from the APV preset menu. http://www.steam-engine.org/modrange.asp

 

[BigNasty]

Coil resistance doesn't matter with a regulated mod, beyond the resistance being within the chips limits. The chip is what's making demands on the battery. It uses boost circuitry to produce the voltage over that of the battery. The Mini has an amp limit of 10 amps and of course 30 watts. Your 20 amp battery is more than sufficient.

This and better than I would have or could said it.

 

[Bean8379]

Thanks, that was very helpful and informative.

 

[Bean8379]

So is 30w still the limit even in voltage mode? This is a bit confusing because when I calculate it, I hit 30w way before I hit 10A.

 

[BigNasty]

Ya 30w is 30w.
The atty is going to be what draws the amps, but on regulated it is normally set to prevent as a buffer from over taxing the batteries.

 

[Bean8379]

No matter how I build, 10A is going to exceed 30w so I'm confused as to how it can have a 10A 30w limit.

 

[Bean8379]

I'm not purposely being dense, but the only way to get 30w and 10A is with a .3 coil, and the cloupor mini only fires to .45. I'm just not understanding how it works.

 

[Lefty]

The chip has limits. They all apply, so if you reach one it doesn't matter if you've not reached the others, you have still reached a limit. Regardless of whether you operate in voltage or wattage mode that corresponding watt limit applies. It won't allow you to select a voltage (or at the very least won't produce a voltage) that would exceed that limit. What I mean when I say that resistance doesn't apply is on the drain on the battery. That is controlled completely by the chip, not the coil, and can't exceed the limits of the chip.

 

[Bean8379]

What I'm not understanding though is, its a 30w device. I get that in wattage mode, it goes from 7-30w in 0.1 increments. I also get that in voltage mode, it still won't produce over 30w because it won't fire a coil that will pull more than 30w at any given voltage. But what Im not understanding is where the 10A current limit comes in.

 

[snake94115]

Ok so I'm looking at the cloupor mini, which says in vv mode it can go from 3.6-7v. So if I'm using a 3.7v battery, can it safely handle 7v? One of the batteries I have is a 20A and at the cloupor mini minimum resistance of 0.45 ohms, 7v comes out to 15A. Also, in wattage mode it only goes up to 30, but at 7A, 0.45 ohms is over 100w. So will it actually produce that many watts in voltage mode? Just trying to figure out the deal here so I don't blow a battery or destroy my mod.

Please go to the link at the bottom.
It will explain things better than I could.

http://www.steam-engine.org/modrange.asp

 

[Lefty]

If you look at the Mod range link you will see that, as with most chips, there is a limited range of resistance in which the mod can produce it's full range of power. 10 amps is the maximum the chip will allow. That doesn't necessarily mean that you can reach it if you bump into one of the other limits first. Just that they left some head room on the amp limit.

 

[Bean8379]

Ok, that makes more sense

 

[snake94115]

Thanks lefty

 

[Lefty]

I was a little pressed for time when I answered before and forgot to mention that when it comes to amps the chip needs headroom to operate. As the available voltage from the battery drops the amp load increases. The chip transforms this into the voltage needed to maintain output at whatever level you have selected. This is the opposite of a mech where the highest amp load is with a freshly charged battery and the amp load decreases with the decreasing battery voltage.

 

[Bean8379]

Ah, gotcha. So while amp load is decreased with a fresh battery, it increases as the battery drains. Well, here is what I'm planning to do. I have a calculator app called VaporCalc and I used it to calculate what wattage coils draw on battery power alone. A 1.2ohm coil draws about 14 watts on a fresh battery. So my plan is to use a 1.2 ohm coil on my rda and a 1ohm coil in my tank, and raise the wattage slightly above what they would draw on battery power alone until I get a nice consistently warm vape with good flavor. Does this sound like a good plan? Also, I have one more question. Ok this mod fires from 3.6-7v in voltage mode, and 7-30w in power mode. So lets say I go to voltage and select 4v, then switch over to power mode and start upping the watts. Does it start at 4v and increase voltage from there as watts are increased, or does the voltage setting have no effect on power mode whatsoever?

 

[Bean8379]

I'll be using a 10A, 3100mah battery which I think should be fine because I don't seem to be able to find a way to hit 10A without far exceeding 30w

 

[snake94115]

I'll be using a 10A, 3100mah battery which I think should be fine because I don't seem to be able to find a way to hit 10A without far exceeding 30w

What device will you be using that on?

 

[Bean8379]

See the OP...

 

[snake94115]

Oh yeah the Cloupor Mini yeh those should be alright for now but a VCT4/VTC5 would be a better option and much safer.

 

[Bean8379]

Don't really think I need a 30A battery when my mods current limit is 10A or 30w and to hit 10A @ 30w I'd have to go down to 0.3 when the lowest that mod will fire is 0.45 and I don't even plan to sub-ohm with it because I can turn the watts up on a +ohm coil and have it heat up faster than a -ohm coil. People misunderstand vw as being designed specifically for sub-ohm, they are not. A +ohm coil will heat up faster with more watts than a -ohm coil at the same watts. 30w @ 0.45 is 8 amps, well within my battery's limit. Turning up the watts on a +ohm coil can give you the same results as battery power alone on a sub-ohm coil, probably even better. And let's see, on battery power alone a 1.2A coil draws 14.5w or 3.5A, at 20W which I don't even think I will turn it up that high, its only 4 amps. I honestly don't understand why everyone thinks you need 30A batteries to be safe. I'm not trying to sound like a dick, but I just don't think I need a Sony vtc to be "safe". All I need to do is use my battery within its limits.

 

[Bean8379]

I have two efest batteries. I have been using both in a mech with no issues whatsoever. I researched the testing info on both batteries so I knew the actual specs. One is a 1600mah rated at 30A, but testing info shows it to be good to about 20A. The other is a 3100mah rated at 20A, but testing shows it to be good for about 10A. I have personally pulled 8A off the 3100mah battery with no problems.

 

[Bean8379]

Even 8 amps exceeds the cloupor mini's 30w limit. There is no way to get to 10A without going over 30w except on a .3 coil which the mini won't fire to begin with.

 

[Bean8379]

Well, I did think about it a bit and I decided I may want to get something with higher amps especially if I decide to switch out the mini's chip later on, so I'm gonna order an HE2 today. 2500mah, 25A, flat top so I know for sure it will fit.

 

[MC5]

It never hurts to have a bigger safety margin when it comes to batteries. I will likely never go over three amps myself, but a little more headroom gives me peace of mind.

 

[Lefty]

Ah, gotcha. So while amp load is decreased with a fresh battery, it increases as the battery drains. Well, here is what I'm planning to do. I have a calculator app called VaporCalc and I used it to calculate what wattage coils draw on battery power alone. A 1.2ohm coil draws about 14 amps on a fresh battery. So my plan is to use a 1.2 ohm coil on my rda and a 1ohm coil in my tank, and raise the wattage slightly above what they would draw on battery power alone until I get a nice consistently warm vape with good flavor. Does this sound like a good plan? Also, I have one more question. Ok this mod fires from 3.6-7v in voltage mode, and 7-30w in power mode. So lets say I go to voltage and select 4v, then switch over to power mode and start upping the watts. Does it start at 4v and increase voltage from there as watts are increased, or does the voltage setting have no effect on power mode whatsoever?

They are separate, when you switch to wattage it will just return to the last wattage setting you used. When in wattage mode the chip will supply the appropriate voltage to achieve your wattage setting based on the resistance of your coil.
I've found it simplest with regulated mods to just start low and turn it up until it suits.

 

[snake94115]

Don't really think I need a 30A battery when my mods current limit is 10A

It's not about need or want.It's about being safe.
I used to love Efest right up until I learned a simple truth...They are re-wrapped junk batteries...Nuff said.

 

[Bean8379]

Yes, they are re-wraps and yes, they have false specs, but that's why there are websites that test the batteries and post the info. I researched this info before I even paid for the batteries. I know the actual specs on each battery. As long as I don't exceed the battery's actual amp limit, I'm safe. 'Nuff said.

 

[MrScaryZ]

Ah, gotcha. So while amp load is decreased with a fresh battery, it increases as the battery drains. Well, here is what I'm planning to do. I have a calculator app called VaporCalc and I used it to calculate what wattage coils draw on battery power alone. A 1.2ohm coil draws about 14 amps on a fresh battery. So my plan is to use a 1.2 ohm coil on my rda and a 1ohm coil in my tank, and raise the wattage slightly above what they would draw on battery power alone until I get a nice consistently warm vape with good flavor. Does this sound like a good plan? Also, I have one more question. Ok this mod fires from 3.6-7v in voltage mode, and 7-30w in power mode. So lets say I go to voltage and select 4v, then switch over to power mode and start upping the watts. Does it start at 4v and increase voltage from there as watts are increased, or does the voltage setting have no effect on power mode whatsoever?

You need to understand Ohms law man

 

[Bean8379]

It's not about need or want.It's about being safe.
I used to love Efest right up until I learned a simple truth...They are re-wrapped junk batteries...Nuff said.

Safe is when you don't pull more amps than your battery can handle. Doesn't matter if its 3A or 30A, as long as you know what it is and don't exceed it. People recommend high amp batteries as "safer" because they don't really understand the relationship between amp limits and resistance. I do. And it's absolutely everything to do with want or need. No one needs a battery with a higher amp limit than what they are going to vape at. Many just believe it is safer. The only thing unsafe is using a battery with false specs without researching the testing info, or using a battery with an amp limit below what you plan to use it for. Like I said, been using two efest batteries on a mech for over a month with no problems because I don't exceed their amp limits. I don't need to explain this again.

 

[Bean8379]

You need to understand Ohms law man

You mean where voltage divided by resistance equals current? That ohms law?

 

[Bean8379]

I see my mistake. I typed 14 amps when I meant 14 watts.

 

[MrScaryZ]

You mean where voltage divided by resistance equals current? That ohms law?

If you understand why do you beg the question? Your post begs the question but you have the answer? or am I confused?

 

[Bean8379]

My post wasn't asking a question, it was repeating what someone else said, which I think you may have missed the context of. What the other poster said was, battery demands on a regulated mod are the opposite of a mech, where with a mech there is a greater amp load on a freshly charged battery and as the battery voltage drops the amp load decreases. On a regulated mod, the amp load is less with a freshly charged battery and increases as the battery drains. I was repeating this back to make sure that I understood it correctly. And I'm here to ask questions because this is my first regulated device. Is it necessary to be condescending to me?

 

[MrScaryZ]

My post wasn't asking a question, it was repeating what someone else said, which I think you may have missed the context of. What the other poster said was, battery demands on a regulated mod are the opposite of a mech, where with a mech there is a greater amp load on a freshly chsrgd battery and as the battery voltage drops the amp load decreases. On a regulated mod, the amp load is less with a freshly charged battery and increases as the battery drains. I was repeating this back to make sure that I understood it correctly. And I'm here to ask questions because this is my first regulated device. Is it necessary to be condescending to me?

Sorry just woke up

 

[Bean8379]

All good.

 

[Bean8379]

Just ordered an HE2, $5.50 on eBay, free shipping via eBay fast 'n free.

 

[Lefty]

Well, I did think about it a bit and I decided I may want to get something with higher amps especially if I decide to switch out the mini's chip later on, so I'm gonna order an HE2 today. 2500mah, 25A, flat top so I know for sure it will fit.

It's overkill for the Mini but it never hurts to have quality batteries that you can use in various mods. I just buy top quality cells and use them in rotation so they often end up much more than I really need for that days use. I think that you would probably be best served just using the mini for what it is - a small form factor modestly powered mod - and just look for a higher powered one when you feel the need. Seems there's a new one every day and the prices keep dropping.

 

[Bean8379]

It's overkill for the Mini but it never hurts to have quality batteries that you can use in various mods. I just buy top quality cells and use them in rotation so they often end up much more than I really need for that days use. I think that you would probably be best served just using the mini for what it is - a small form factor modestly powered mod - and just look for a higher powered one when you feel the need. Seems there's a new one every day and the prices keep dropping.

Well being as though I really like the size and everything (don't have it in my hands yet but its the smallest 30w mod on the market), I'm considering swapping out the chip if my needs exceed its capabilities. Thinking a DNA 50w chip if such a one exists. I saw a YouTube vid where a guy put a 40w DNA chip, only thing he did wrong was reverse +/- buttons. Only concern I have with swapping out the chip is will a DNA chip support the mini's charging board and the pass through functionality. Or if someone comes up with a firmware hack by then, maybe that will be easier.