Ohms Law Help

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ItsMathieuT

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Hi fellow vapers. I have a RX200, which is fantastic from my short term of experience, and with it I am using three LG HB6's. (The newer pink wrap). I recently just picked up an Avocado 24, and am looking to complete my first build on this RDTA. I went with an RDTA rather than an rda considering I wouldn't have to allocate as much time and energy to it, but still have great performance. With the batteries, I have never worked with more than one 18650, and am stumped at the question of the discharge they can put out, and are they in series or parallel? I'm wondering what wattage ranges I can stay within and what resistance I should have for my coil. With cloud chasing in mind, I want to do a single coil build, but am not sure what resistance for the coil would be optimal. Thanks for your time, all feedback is acceptable.
 

IMFire3605

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The rx200 is regulated. The coil resistance doesnt mean much to the batteries. You have 3 30 amp batteries. That is 90 amps. Take that times 3.2(cutoff voltage). That is 288 watts. Keep it under 250w and you wont have a problem.

Correction, 3 30amp CDR in a series is still 30amps CDR (series = voltage x #of batteries, mah of single battery, CDR of single battery) (if it were parallel then it is voltage of a single battery, mah and cdr are balanced between the batteries, so mah and cdr X number of batteries)

Base Firmware 200watts
200watts/9.0v (3v per battery)=22.2222/90% mod efficiency=24.6914amps

Upgraded Firmware (RX200S) 250watts
250/9=27.7778/90%=30.8642amps
250/9.3 (3.1v per battery)=26.8817/90%=29.8686amps
 
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speedy_r6

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Correction, 3 30amp CDR in a series is still 30amps CDR (series = voltage x #of batteries, mah of single battery, CDR of single battery) (if it were parallel then it is voltage of a single battery, mah and cdr are balanced between the batteries, so mah and cdr X number of batteries)

Base Firmware 200watts
200watts/9.0v (3v per battery)=22.2222/90% mod efficiency=24.6914amps

Upgraded Firmware (RX200S) 250watts
250/9=27.7778/90%=30.8642amps
250/9.3 (3.1v per battery)=26.8817/90%=29.8686amps

Series or parallel in a regulated mod makes no difference for finding out the safe wattage you can run. 9.6v times 30 amps is 288 watts(series). 3.2v times 90 amps is 288 watts(parallel).
 
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ItsMathieuT

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Series or parallel in a regulated mod makes no difference for finding out the safe wattage you can run. 9.6v times 30 amps is 288 watts(series). 3.2v times 90 amps is 288 watts(parallel).


So I should be fine to use any coil that is reasonable, obviously not going to 0.0001 ohms. Also would it be safe to vape at 250, considering the max discharge is 288 watts? Chance of voltage drop, or?
 

speedy_r6

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You should be fine all the way down to the 0.1 ohm limit the device has. You SHOULD be able to fire at 250w if your coil is in an acceptable resistance range, but the coil needs to be built to handle that much power. Also, your insulator on the tank you are using may not be able to withstant the amps and melt.

That being said, i have an rx200 and it never sees anything over 150w. The vape just gets too hot for my taste.
 

ItsMathieuT

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You should be fine all the way down to the 0.1 ohm limit the device has. You SHOULD be able to fire at 250w if your coil is in an acceptable resistance range, but the coil needs to be built to handle that much power. Also, your insulator on the tank you are using may not be able to withstant the amps and melt.

That being said, i have an rx200 and it never sees anything over 150w. The vape just gets too hot for my taste.
Okay, I understand now. I've never gone that high either, but thanks for the help
 
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