Understanding V’s, W’s and A’s

[JJ Hair]

Hey Peeps!
So I am still on the hunt for info and how found that I am having trouble getting the answers I need because I dont know how to ask the questions. (I hope that makes sense)
So here it goes....
Am I right in thinking that if I use two 20 Amp 18650 batteries to support 70 watts on my mod that each batterie will use 1.75 volts? Or to simplify for myself, 20amps for 3.5 volts for 70 watts? I am using a regulated mod and my goals is to stay under 5 volts to avoid formaldihyde.
Thanks

 

[Zaryk]

Hey Peeps!
So I am still on the hunt for info and how found that I am having trouble getting the answers I need because I dont know how to ask the questions. (I hope that makes sense)
So here it goes....
Am I right in thinking that if I use two 20 Amp 18650 batteries to support 70 watts on my Mod that each batterie will use 1.75 volts? Or to simplify for myself, 20amps for 3.5 volts for 70 watts? I am using a regulated mod and my goals is to stay under 5 volts to avoid formaldihyde.
Thanks

On a regulated device you can turn it up and down. The batteries don't control the output, the chip does.

For regulated devices you just need to know the CDR of the battery and how many watts you want to achieve. Your 20A batteries will be fine up to 60w per battery used (in a single battery mod 60w max, dual battery mod 120w max, and so on). If you want to stay under 5v, just keep the wattage set at a moderate level. Some mods will display the output voltage so you know where you are at so you can keep an eye on it if you are worried about it.

 

[JJ Hair]

On a regulated device you can turn it up and down. The batteries don't control the output, the chip does.

For regulated devices you just need to know the CDR of the battery and how many watts you want to achieve. Your 20A batteries will be fine up to 60w per battery used (in a single battery mod 60w max, dual battery mod 120w max, and so on). If you want to stay under 5v, just keep the wattage set at a moderate level. Some mods will display the output voltage so you know where you are at so you can keep an eye on it if you are worried about it.

The mod says its shooting up to like 6 volts or more just by tapping the firing button when Im between 59 to 79 watts. All the videos i watch or i read says NOONE would vape at 5 volts beacause of how bad it would taste orfor it burning the back of your throat. At 70 watts it tastes great and I get a nice smooth vape.

 

[tailland]

Volts mean nothing, if they aren't accompanied by a strong amperage, resulting in lots of watts and heat. That's what makes metals go rogue, not just voltage.

 

[JJ Hair]

Volts mean nothing, if they aren't accompanied by a strong amperage, resulting in lots of watts and heat. That's what makes metals go rogue, not just voltage.

So does this sound about right to you?

 

[Zaryk]

The mod says its shooting up to like 6 volts or more just by tapping the firing button when Im between 59 to 79 watts. All the videos i watch or i read says NOONE would vape at 5 volts beacause of how bad it would taste orfor it burning the back of your throat. At 70 watts it tastes great and I get a nice smooth vape.

I know some people that vape at more than 8v all day every day. There is one guy I met that ran a mod around 16v and was fine with it. 5v isn't that bad really. I run my regulated mod around 4-4.5v. Don't believe everything you hear on youtube, they just spout off a bunch of their opinions most of the time. They don't take into account that not everyone vapes the same as them a lot of the time. You sound like you found your sweet spot, just do your thing and enjoy your vape. You are well within the safe limits if the mod isn't throwing out warning messages.

 

[JJ Hair]

I know some people that vape at more than 8v all day every day. There is one guy I met that ran a mod around 16v and was fine with it. 5v isn't that bad really. I run my regulated mod around 4-4.5v. Don't believe everything you hear on youtube, they just spout off a bunch of their opinions most of the time. They don't take into account that not everyone vapes the same as them a lot of the time. You sound like you found your sweet spot, just do your thing and enjoy your vape. You are well within the safe limits if the mod isn't throwing out warning messages.

TY

 

[Punk In Drublic]

Formaldehyde occurs at a certain temp >~450F depending on juice. The voltage you are seeing is a factor of Ohms law. To achieve 70 watts with a 0.5 ohm coil, 6 volts is applied (it actually comes out to 72 watts). This does not mean you are reaching temperatures where formaldehyde starts to occur.

 

[bombastinator]

Hey Peeps!
So I am still on the hunt for info and how found that I am having trouble getting the answers I need because I dont know how to ask the questions. (I hope that makes sense)
So here it goes....
Am I right in thinking that if I use two 20 Amp 18650 batteries to support 70 watts on my Mod that each batterie will use 1.75 volts? Or to simplify for myself, 20amps for 3.5 volts for 70 watts? I am using a regulated mod and my goals is to stay under 5 volts to avoid formaldihyde.
Thanks

What matters for formaldehyde is temperature not amps. Does your mod have temperature control? That’s what you want to be using I think

 

[ENAUD]

VoLTS taste better than watts..

 

[Punk In Drublic]

What matters for formaldehyde is temperature not amps. Does your mod have temperature control? That’s what you want to be using I think

It’s a Voopoo Drag - the TC runs on the cool side. He’s using a drop in coil with a sub ohm tank. The coil is SS but I have read (not confirmed) it uses Nichrome for the leads. Not sure how accurate TC would be. The wizards over at Evolv claim TC can be difficult with drop in coils given the many variances with them.

 

[sdennislee]

Have you watched this series? mooch minding your mAhs - Bing video

 

[Ryedan]

Hey Peeps!
So I am still on the hunt for info and how found that I am having trouble getting the answers I need because I dont know how to ask the questions. (I hope that makes sense)

Makes sense to me . Don't worry about it and just keep asking questions until you have answers you understand.

So here it goes....
Am I right in thinking that if I use two 20 Amp 18650 batteries to support 70 watts on my Mod that each batterie will use 1.75 volts? Or to simplify for myself, 20amps for 3.5 volts for 70 watts?

No on both (sorry ). Battery voltage is for all intents and purposes dependent on battery charge level and does not change when you change your mods watt setting or atty resistance. What changes is that the mod will 'pull' more or less amps from the battery(s) depending on battery voltage and mod wattage set, to get the wattage set.

This is why it's important to be using batteries that can safely handle the amp draw your mod will pull from them. As has been said, good 20A batteries can safely handle around 60 watts each, 2 of them will do 120 watts, etc.

With a regulated mod, you don't have to worry about the mod's volts and amps, it makes no difference to your vape. Your vape is all about the watts (power) being pumped into your atty by the mod. With mech mods OTOH, atty resistance controls the wattage of your vape and thus battery amp draw which makes them quite a bit different than regulated mods to set up.

I am using a regulated mod and my goals is to stay under 5 volts to avoid formaldihyde.
Thanks

Mod voltage has nothing to do with degrading juice, that's all about coil temperature. Get the coil(s) too hot and you'll get juice degradation which can produce all kinds of unsafe chemicals. Coil temperature is mostly controlled by watts set and the build you're using in the atty. Thinner wire with less surface area will generally also handle less wattage before temps go too high. Atties that have low air flow will also degrade juice at lower wattages.

With a regulated mod, you can start vaping with lower watts and increase the wattage until you get the vape you want. If your juice starts tasting a bit burnt you've got the watts too high and you either need to back off the watts, change the heads you're using, the build in your RTA, or go to an atty that is designed to accommodate higher watts. Or switch to TC mode

Hope this makes some sense. Best of luck with it @JJ Hair

 

[Ryedan]

All the videos i watch or i read says NOONE would vape at 5 volts beacause of how bad it would taste or for it burning the back of your throat.

Hogwash.

I feel better now. I've always wanted to say that but never had the chance

 

[ScottP]

Am I right in thinking that if I use two 20 Amp 18650 batteries to support 70 watts on my Mod that each batterie will use 1.75 volts? Or to simplify for myself, 20amps for 3.5 volts for 70 watts? I am using a regulated mod and my goals is to stay under 5 volts to avoid formaldihyde.
Thanks

Two 20 amp batteries in a regulated mod can support up to 120W Max. To figure this out use the following formula:

Amps * 3 * number of batteries = Max Watts in a REGULATED MOD.
So 20 * 3 * 2 = 120W

Now thermal breakdown of liquid has to do with Temp only. How hot a coil gets is a products of more variables than can even be listed. There is no magic volts, or watts to use to stay at a certain temp because too many other things affect temp. Mass of the coil, air flow, juice saturation, and about 100 more. If you really want to be sure then TC is pretty much the only way.

That said here is a chart of various juice mixtures and how much formaldehyde may be created at certain temps. As you can see 90VG/10 Distilled Water is the "safest", however even 50VG/50PG at 500F has less formaldehyde than the average cigarette. If you don't mind a little bit of risk then anything within reason should be safer than smoking. If you want to be completely formaldehyde free, you need to use TC, stay below 450F, and use 90VG/10DW juice. Personally I vape 65PG/35VG at 435F. I know I am probably getting a little bit of aldehydes, but I am OK with the level I am at.

 

[dripster]

I'll just add that, when people use words like "safely" and "safe" when talking about battery safety, what they're actually referring to (or should be referring to) is "in accordance with recommended safety limits/guidelines". I'll also add that formaldehyde doesn't start to occur until you're so close to burning something up that it will enevitably feel harsh to some extent at least and it will taste reminiscent of what's known as a "dry hit" or worse, and, bumping up the wattage does not necessarily always result in the typical highly unpleasant scenario where juice starts getting overheated so yeah, hogwash is the perfect word, as normal people will just stop vaping on it immediately as soon as it apparently overheats, after which they will find a way to remedy the malfunction or problem that causes it to overheat.

 

[dripster]

If you really want to be sure then TC is pretty much the only way.

More of the same hogwash.

 

[ScottP]

I'll also add that formaldehyde doesn't start to occur until you're so close to burning something up that it will enevitably feel harsh to some extent at least and it will taste reminiscent of what's known as a "dry hit"

This is wrong. Formaldehyde at DANGEROUS levels doesn't start to occur until it starts tasting nasty, but it does start being produced in smaller quantities at temps well below scorching/dry hit levels. The chart I posted above was created by mikepetro from here on ECF and has essentially been corroborated by 2 different pro-vaping researchers. Many if not most people vape in the ranges listed where formaldehyde occurs. In fact, here is a thread someone just started a few hours ago that is vaping well into formaldehyde territory and "getting good flavor". Again I am NOT saying these are necessarily dangerous levels of formaldehyde but it IS present. If you don't know what temp you are vaping at then you don't know what levels of aldehydes may be in your vapor. If you don't care, that's fine too, but using TC is the only way to KNOW within a reasonable certainty, especially if you want to be at 0 formaldehyde levels.

 

[ScottP]

I'll just add that, when people use words like "safely" and "safe" when talking about battery safety, what they're actually referring to (or should be referring to) is "in accordance with recommended safety limits/guidelines".

This part I agree with. Thus the formula I listed above is to calculate the wattage batteries can support without exceeding the stated limits of the battery (with a little bit of buffer). Of course a battery CAN fail even if limits are not exceeded, but staying in the stated range does reduce the chance of failure. As always safety is relative.

 

[Baditude]

Here's a simple chart to use for regulated mods if you hate math formula's:

What is the highest wattage setting that you use?

Are you using a single, dual, or triple battery mod? In the interests of keeping things simple:

-If you use a good quality 15 amp CDR battery like the Samsung 30Q or Sony VTC6, then you are good up to 45 watts per battery; 90 watts using two; 135 watts for three batteries.

-If you use a good quality 20 amp CDR battery like the LG HG2 or Samsung 25R then you are good for 60 watts per battery. If using a 2-battery regulated mod, you're good for 120 watts as you have two batteries. If you are using a 3-battery mod, you're good for 180.

-If you use a single 25 amp CDR battery like the Sony VTC5A, then you are good for 75 watts per battery, 150 watts for two batteries, and 225 watts with three.

-If you use a single 30 amp CDR battery like the LG HB6 you are good up to 90 watts; with a pair of 30 amp CDR batteries you could safely do 180 watts.​

WATTAGE PER SINGLE BATTERY on REGULATED MOD:
(Total wattage doubles using 2 batteries; Triples using 3 batteries.)

Up to 45W:

Samsung 18650 30Q, 3000 mah 15 amp CDR

Sony 18650VTC6 3000mAh 15 amp CDR

​

Up to 60W:

LG 18650HG2 3000mah 20 amp CDR

LG 18650HE4 2500 mah 20 amp CDR

Samsung 18650-25R, 2500 mah 20 amp CDR

Sanyo UR18650NSX, 2500 mah 20 amp CDR

Sony 18650VTC5, 2600 mah 20 amp CDR

Sony 18650VTC4, 2100 mah 23 amp CDR

Up to 75W:

LG 18650 HD4 2100 mah 25 amp CDR

LG 18650 HD2 2000 mah 25 amp CDR

Samsung 18650-24S, 2500 mah 25 amp CDR

Sony 18650VTC5A, 2500 mah 25 amp CDR

​

Up to 90W:

LG18650HB6 1500mah 30 amp CDR

LG18650HB2 1500mAh 30 amp CDR

LG18650HB4 1500mAh 30 amp CDR

Samsung 18650-20S 2000mah 30 amp CDR