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200 watt mod and battery question

jsr27

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If your supposed to use three batteries with a 200 watt mod why do they make 2 battery 200 watt mods? Isn't it unsafe? I want a 200 watt mod and I can't decide on one! Any help?
 

raymo2u

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It depends on the mod, is it regulated or a mech? Im going to assume regulated. I doubt it will give a full 200w with 2 18650s, even in series bumping them up to that high of wattage without PWM isnt likely. In parallel you would be limited to 133w without a step up of some sort. If its regulated it should be safe as it should have safeties built in to prevent catastrophe.
What mod were you interested in?
 

smacksy

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If your supposed to use three batteries with a 200 watt mod why do they make 2 battery 200 watt mods? Isn't it unsafe? I want a 200 watt mod and I can't decide on one! Any help?
I got the RX200 that uses three batts...even though it's a 200w mod I seldom vape above 80w...advantage of three batts is they go for a couple days on a single charge.. Another point is I paid only $49 for it..its the best mod I vaped in a long time...love it

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raymo2u

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I got the RX200 that uses three batts...even though it's a 200w mod I seldom vape above 80w...advantage of three batts is they go for a couple days on a single charge.. Another point is I paid only $49 for it..its the best mod I vaped in a long time...love it

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Depends on how you build though and the vape performance you enjoy...I vape .1-.2 normaly and like a 110w-160w vape and the trio of batteries lets me rock a set of batteries while going of for a bit without the need for a bag of batteries to swap out...I get about 5 hours of light chain vaping out of a trio at 140w
 

smacksy

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Depends on how you build though and the vape performance you enjoy...I vape .1-.2 normaly and like a 110w-160w vape and the trio of batteries lets me rock a set of batteries while going of for a bit without the need for a bag of batteries to swap out...I get about 5 hours of light chain vaping out of a trio at 140w
Lately I've been vaping the TFV4 .2 ohm triple coil at about 80w, even though it's rated up to 120w..any higher and it starts to get too hot chain vaping it...I have to refill it often as those thick clouds burns alot of juice! (I call it my lazy' man's dripper, lol)
But I get about 2 days on the batts before needing swapped out with the RX200...
5f8bb924a838c0f998c880013fe999d0.jpg
I like the RX200/TFV4 so much I vape two in rotation, with different flavors of course, lol

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raymo2u

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Lately I've been vaping the TFV4 .2 ohm triple coil at about 80w, even though it's rated up to 120w..any higher and it starts to get too hot chain vaping it...I have to refill it often as those thick clouds burns alot of juice! (I call it my lazy' man's dripper, lol)
But I get about 2 days on the batts before needing swapped out with the RX200...
5f8bb924a838c0f998c880013fe999d0.jpg
I like the RX200/TFV4 so much I vape two in rotation, with different flavors of course, lol

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As you see I love all the TFV4s:
TFV4 Family .jpg TFV4 Family.jpg

I use the RBAs for my TFV4...still pump wattage but they go slow on the juice!
TF-R1:
26g 40g Fused Clapton  .jpg

TF-R2:
32g 44g Fused Claptons .jpg

TF-RCA:
26K 44N60 Fused Clapton  .jpg
 

f1r3b1rd

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If your supposed to use three batteries with a 200 watt mod why do they make 2 battery 200 watt mods? Isn't it unsafe? I want a 200 watt mod and I can't decide on one! Any help?
Personally looking at the numbers only-
no; 200w from two 18650s with the current battery technology is not safe in my opinion.


Realistically the times that 'most' vapors will use 200w won't be very often,if at all.


The third battery gjves you the extra current and power to hit the mark; but, more importantly it gives you battery life so you're not bringing a spare set of batteries with you.
 

smacksy

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As you see I love all the TFV4s:
View attachment 38796 View attachment 38797

I use the RBAs for my TFV4...still pump wattage but they go slow on the juice!
TF-R1:
View attachment 38795

TF-R2:
View attachment 38793

TF-RCA:
View attachment 38794
Cool!
I'm not into building much anymore and haven't even tried the RBA deck...there are some new T8 coils coming out soon that I might try out..but for now the triple coils vape great for me, and keeping me tobacco free,

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raymo2u

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Cool!
I'm not into building much anymore and haven't even tried the RBA deck...there are some new T8 coils coming out soon that I might try out..but for now the triple coils vape great for me, and keeping me tobacco free,

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I ordered the T4/8 and the TF-R3 to try out...they havent arrived yet and I ordered them over a month ago from GB
 

smacksy

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I ordered the T4/8 and the TF-R3 to try out...they havent arrived yet and I ordered them over a month ago from GB
Let us know how you like them when they come in...I'm on the alert list for the T8 coils when Vivid Smoke gets them in stock..should be next week...I did hear the triple clapton deck is hard to build, really tight getting cotton in there, just sayin..

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raymo2u

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Let us know how you like them when they come in...I'm on the alert list for the T8 coils when Vivid Smoke gets them in stock..should be next week...I did hear the triple clapton deck is hard to build, really tight getting cotton in there, just sayin..

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I heard the TF-R1 couldnt fit anything bigger then single 24g wire...same with the TF-R2...I threw a 2x22g/40g Fused clapton 5 wrap on it :D Im sure it can be built after getting used to it and understanding the best method of execution.....

I will post my findings when they arrive and post my build also in the "Post your Builds" and in "My Coilporn" threads.
 

DED420

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Member For 4 Years
I did hear the triple clapton deck is hard to build, really tight getting cotton in there, just sayin..
If anyone can figure it out, its @raymo2u , he's like an RBA Jedi hahaha.

But yeah, no true 200W device with only two 18650s, they use PWM (essentially pulsing the batteries at (XXXX) times a second; using the Pulsed "higher amps" rating). A general rule of thumb, you won't get more than 75W of true power off a single 18650. That's how the RX200 gets 200W (75W per battery;3 batteries is 225W).
 

raymo2u

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If anyone can figure it out, its @raymo2u , he's like an RBA Jedi hahaha.

But yeah, no true 200W device with only two 18650s, they use PWM (essentially pulsing the batteries at (XXXX) times a second; using the Pulsed "higher amps" rating). A general rule of thumb, you won't get more than 75W of true power off a single 18650. That's how the RX200 gets 200W (75W per battery;3 batteries is 225W).
Funny, I would say Enthusiast but not a Jedi :rolleyes:
 

DED420

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I'm going to stick with my original statement, your a goddamn Jedi and you know it. You probably build all these without ever using your hands, blindfolded, with just the Force at your disposal :cool:. Making everyone all jealous with your awesome builds (or maybe just me :oops:) hahaha
 

JERUS

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Personally looking at the numbers only-
no; 200w from two 18650s with the current battery technology is not safe in my opinion.


Realistically the times that 'most' vapors will use 200w won't be very often,if at all.


The third battery gjves you the extra current and power to hit the mark; but, more importantly it gives you battery life so you're not bringing a spare set of batteries with you.
Speaking about all this stuff, does anyone have some insight into how the little regulated chips work? How they decide what voltage/amperage to use?

If I understand it right 3 batteries in series would have access to 12.6v ideally (and realistically something like 11.1v due to voltage drops). As you just add up the voltage. Now, amp limitations are different on different batteries, do the chips know what battery you're using?

If I set it at 120w, I could have say 20amps going out and need 6volts, Likewise I could have 10v and 12amps. What decides this? I also know Ohms law so resistance will have a relation to voltage and amperage but with regulated mods how does it decide. I know with your basic mech voltage is your voltage and depending on the resistance it will demand different levels of amps, but I'm just pretty curious how the regulated things decide what is what.
 

raymo2u

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Ohms Law and Voltage/Amperage Calculator is programmed in the firmware...Every mod is different, some step up, some step down, some use the available current/voltage and then step up/down.
 

JERUS

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Ohms Law and Voltage/Amperage Calculator is programmed in the firmware...Every mod is different, some step up, some step down, some use the available current/voltage and then step up/down.
Thanks, that's what I figured but was curious if there was a standard they followed or just each done however the designer wanted.
 

Slurp812

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Speaking about all this stuff, does anyone have some insight into how the little regulated chips work? How they decide what voltage/amperage to use?

If I understand it right 3 batteries in series would have access to 12.6v ideally (and realistically something like 11.1v due to voltage drops). As you just add up the voltage. Now, amp limitations are different on different batteries, do the chips know what battery you're using?

If I set it at 120w, I could have say 20amps going out and need 6volts, Likewise I could have 10v and 12amps. What decides this? I also know Ohms law so resistance will have a relation to voltage and amperage but with regulated mods how does it decide. I know with your basic mech voltage is your voltage and depending on the resistance it will demand different levels of amps, but I'm just pretty curious how the regulated things decide what is what.


The mod does the math. You set the wattage. Say for example you have a 0.28 ohm coil. You want to start out low, and set it to 25 watts.
Remember, there will be 2 sets of (rough) equations. The battery side, and the load (coil) side. On the coil side, where the magic is happening. We will have ~ 2.6 volts at around 9.4 amps to produce 25 watts at the coil. I simply entered the 25 watts, and the 0.28 ohms in the ohms law calculator. Now for the battery side. We have 3 batteries. Assuming they are fully charged, under this light load they should be able to maintain ~ 3.9 volts wile firing.
So plug this all in start with 11.7 volts, and we want to output 25 watts, but of course the circuitry will waste some power also. We can simplifiy this and just add 5 watts. This is where we get real rough in our calculations, but it will be very close to reality. So I have my 11.7 doing 30 watts. My 2 needed numbers to solve the equation. That gives 2.5 amps from the stack of three batteries. The load (resistance) that the batteries see at this power level would be around 4.5 ohms. I like to also note that at 25 watts, this side of the equation will always be (90%) the same regardless of the coil resistance being used. The calculations on the battery side are actually only approximate RMS values. The reality is there will be current spikes well above the 2.5 amps during operation...
 

f1r3b1rd

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Speaking about all this stuff, does anyone have some insight into how the little regulated chips work? How they decide what voltage/amperage to use?

If I understand it right 3 batteries in series would have access to 12.6v ideally (and realistically something like 11.1v due to voltage drops). As you just add up the voltage. Now, amp limitations are different on different batteries, do the chips know what battery you're using?

If I set it at 120w, I could have say 20amps going out and need 6volts, Likewise I could have 10v and 12amps. What decides this? I also know Ohms law so resistance will have a relation to voltage and amperage but with regulated mods how does it decide. I know with your basic mech voltage is your voltage and depending on the resistance it will demand different levels of amps, but I'm just pretty curious how the regulated things decide what is what.
Everyone pretty much answered it but just to ad
The boards all tend to do a it a tad different but they all have an amp limit and a voltage limit to help prevent you from over pulling the battery. Some like the DNA (I know more about that one) uses 'soft limiting' I'd it can't deliver what you want, it will deliver what it can within its parameters.
Some others use PWM or PFM which is a nice way of either playing with the numbers or using pulse values to make it work.
 

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