RX2/3 with Smok TFV8. Safe setup? Fast answers pls. *Noob*

[JohanB]

Hello! Just got a new setup. This is my first "advanced setup" and i've been subohming pretty simple stuff before. I'm curious if this is a safe setup with the Sony IMR VTC4 18650 batteries, right now using 3 but i'm usually using 2.

So, right now using one of the 1.5ohm coils reading at 1.6, used the ohm calculator which gave me this Gyazo - 943d50c4325d4084b0358e7412115d30.png

1. Is the setup safe, do i have to worry about anything?
2. Does using 2 or 3 batteries make a different as to safety?
3. Can someone explain what the ohm calculation means? (Am i right to assume the wattage it's telling me is the highest wattage i should use to stay safe, 85?)
4. Should i discharge the batteries and just smoke them down to like 5-10% before loading or should i load them at higher %'s?


Would really appriciate some fast answers that aren't too advanced. I just wanna keep enjoying this setup cause it's awesome but when im googling vape stuff sometimes i see discussions on battery-safety and it makes me worried.

Thanks.

 

[KenD]

The watt setting determines the amp draw, and you need batteries that can handle the amps you draw. The vtc4 is a very good battery (if authentic). Three batteries can handle more amps than two batteries. Note that the batteries need to be married - always used together, not separated for use in single-battery mods - and you should have two-battery pairs for the two-battery setup and separate three-battery sets for three-battery mode. If you simply remove one battery when in two-battery mode you'll end up with unevenly discharged and charged batteries.

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[bwh79]

Your post says 1.6 but the picture says .16 -- which is it?

1: you should be pretty safe with that setup, yeah. The regulated mod should help prevent any "battery incident" from occurring.

2: yes three batteries will allow you to safely use higher wattages than 2 batts.

3: The ohm calculation is showing you the relationship between ohms, amps, volts, and watts. Here it is in more general terms:

Amps = Volts / Ohms
and
Watts = Volts * Amps
or
Amps = Watts / Volts

The last 2 are what you should be concerned with, using a regulated device like the RX2/3 (the first one is for unregulated or "mechanical" devices that just release raw battery power into the atomizer without letting the user select a voltage or a wattage to apply.) The "voltage" in this case is not the applied voltage that gets delivered to your atomizer, but rather the "charge state" of your batteries -- varies from about 4.2v per battery at full charge, down to around maybe 3v under load at low-voltage cutoff when you will need to recharge them (or sooner).

A good rule of thumb is not to exceed 60 watts per battery, so you could take the RX2/3 up to 120 watts in 2-battery mode or 180 watts with three batts. This works out to an amp drain of 20 amps per battery at 3 volts.

4: charge the batteries whenever it's convenient, you don't need to discharge them fully before recharging. In fact, doing so regularly can shorten the life of the batteries, and so it's best to keep them "topped off" as much as possible.

 

[JohanB]

The watt setting determines the amp draw, and you need batteries that can handle the amps you draw. The vtc4 is a very good battery (if authentic). Three batteries can handle more amps than two batteries. Note that the batteries need to be married - always used together, not separated for use in single-battery mods - and you should have two-battery pairs for the two-battery setup and separate three-battery sets for three-battery mode. If you simply remove one battery when in two-battery mode you'll end up with unevenly discharged and charged batteries.

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Im pretty sure the place im buying my stuff from sells authentic ware. Allright thanks for pointing out the marriage thing for batteries!

 

[JohanB]

Text

It's 0.16, sorry.

awesome information, thank you very much!

 

[DP2Raja]

I vape a 0.16 ohm set up all the time on my RX200s. I just keep the Amps below 20 (19) just to be safe, but the regulated chip in the RX should keep you safe anyway. In general I "self regulate" based on my batteries max continuous Amp output rating. Research your batteries Amp output rating...don't just trust the sales pitch. There are guys on E-cig Forum who to extensive tests and some show that what is advertised is incorrect.

Disclaimer: I am not a battery expert. Some of our fellow members may tell you I am full of poop on this. They may be right!

 

[JohanB]

I vape a 0.16 ohm set up all the time on my RX200s. I just keep the Amps below 20 (19) just to be safe, but the regulated chip in the RX should keep you safe anyway. In general I "self regulate" based on my batteries max continuous Amp output rating. Research your batteries Amp output rating...don't just trust the sales pitch. There are guys on E-cig Forum who to extensive tests and some show that what is advertised is incorrect.

Disclaimer: I am not a battery expert. Some of our fellow members may tell you I am full of poop on this. They may be right!

Cool! Regulating the amps as in balancing the watts to make it not go over the amp you want it to?
I mailed the people i buy my stuff from and he uses the same setup as me and linked me a thread about the VTC4 battery, turns out an expert says that 23 amps is the limit he came up with, and he seems like a trustable guy. So i feel ok about vaping this thing now, its usually at 19.8-9 but sometimes 20.5 amps, just tried 100 watts which puts the battery at 24 amps unfortunetly. I dont think its about safety at 24 amps but the battery life will decrease because it gets too hot. So i guess i can still safely vape quite high amps but if i want my batteries to stay alive i shouldn't pass 23A.

 

[KenD]

Cool! Regulating the amps as in balancing the watts to make it not go over the amp you want it to?
I mailed the people i buy my stuff from and he uses the same setup as me and linked me a thread about the VTC4 battery, turns out an expert says that 23 amps is the limit he came up with, and he seems like a trustable guy. So i feel ok about vaping this thing now, its usually at 19.8-9 but sometimes 20.5 amps, just tried 100 watts which puts the battery at 24 amps unfortunetly. I dont think its about safety at 24 amps but the battery life will decrease because it gets too hot. So i guess i can still safely vape quite high amps but if i want my batteries to stay alive i shouldn't pass 23A.

100w is about 11.5 amps in a three-battery setup, about 17 amps in a two-battery setup, so you're well below the amp limit.

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[JohanB]

100w is about 11.5 amps in a three-battery setup, about 17 amps in a two-battery setup, so you're well below the amp limit.

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Is that really how it works? In that case, yes im well below 23amps, but as i said im new at this, so i need you to be sure when you say so. I thought whatever amp it shows is what every battery is being put through.

 

[KenD]

Is that really how it works? In that case, yes im well below 23amps, but as i said im new at this, so i need you to be sure when you say so. I thought whatever amp it shows is what every battery is being put through.

Yup, that's the way it works. To my knowledge there are no mods that show the amps being drained. They show the amps at the atty, which is useless information.

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