Sub Ohm Info !

[Bucac]

Hey guys,

I recently got into cloud chasing, I've seen a lot of people not taking the proper safety procedures and I just want to make sure I'm doing everything the right way before I start building my own set ups.

I have already bought an ohm reader since I've read that is a MUST when it comes to rebuildables.

I currently have a 30 amp sony battery, running a 26 gauge single coil which is only .6 ohms when i checked the reader. I've tried using the ohm calculator but I'm having a hard time understanding it.

I want to start a dual coil set up but want to make sure I won't over do it. Please remember I'm fairly new at this, but any info would be great. Thanks guys!!

My set up: 69 Mech mod / Nimbus rda / Muffler Tip

 

[ta2dave76]

Check out the rba sub forums. Tons and tons of info there.

 

[patrao_n]

Just to be sure are you using a setup where your atomizer screws in to the ohm meter. Or are you using a hand held multi meter?

For dual coils remember that the final result will be half the ohms. I am currentlt using two 1.2 ohm coils that comes to .6 because I am running them parallel. Which rda are you using?

To use the ohm calculator do this. Take your ohms which you said was .6. Then take the voltage (for here I put 4.2 volts as a just in case measure) and that will give you your amps. Comes out to 5.86 amps. So you have alot of room. Cannot talk about the 26 gauge as I have only used the lowest of 28. I would suggest you look up micro coils though for the dual coils. Also keep both coils the same. So same ohms and same length of legs going to the posts. Goodluck!

Sent from my SPH-L900 using Tapatalk

 

[DrillRX]

Hey guys,

I recently got into cloud chasing, I've seen a lot of people not taking the proper safety procedures and I just want to make sure I'm doing everything the right way before I start building my own set ups.

I have already bought an ohm reader since I've read that is a MUST when it comes to rebuildables.

I currently have a 30 amp sony battery, running a 26 gauge single coil which is only .6 ohms when i checked the reader. I've tried using the ohm calculator but I'm having a hard time understanding it.

I want to start a dual coil set up but want to make sure I won't over do it. Please remember I'm fairly new at this, but any info would be great. Thanks guys!!

My set up: 69 Mech Mod / Nimbus RDA / Muffler Tip

You can look up the batteries you are using as well. The calculations are good but good manufacturers will post their batteries pulse amp limits which are usually what you can go by. The amp limit calculator is usually what the battery can handle under load until it's completely dead, the pulse is usually alot higher than the continuous amp limit and because it is somewhere between 5-8 seconds that is ideal for what you would need. Just make sure if a battery is claiming 30amps you know if it is pulse or continuous limit

 

[Paul.K]

I currently have a 30 amp sony battery, running a 26 gauge single coil which is only .6 ohms when i checked the reader. I've tried using the ohm calculator but I'm having a hard time understanding it.

I want to start a dual coil set up but want to make sure I won't over do it. Please remember I'm fairly new at this, but any info would be great. Thanks guys!!

My set up: 69 Mech Mod / Nimbus RDA / Muffler Tip

Ohm's law calculator put 4.2 for the voltage (this will be your maximum voltage of your battery) then put 0.6 in for the resistance. Hit calculate and it will show you current I = 7 amps and power of 29.4 watts. 7 amps is well within your battery's safety limits.

 

[Baditude]

This info should help:

Mechanical Mod Proper Usage Guide

http://www.e-cigarette-forum.com/forum/rebuildable-atomizer-systems/465483-sub-ohm-vaping-discussion-safety-battery-info-warnings.html

Information Resources for Your First RBA

Battery Basics for Mods: IMR or Protected?

Cloud Chasing is Dangerous

http://www.e-cigarette-forum.com/forum/rebuildable-atomizer-systems/462202-how-sub-ohm-vaping-dangerous.html

 

[Vwls]

This may be helpful as well - enjoy and be safe!

Battery Amp Limits

AW IMR
18650 2000mah 10A (5C)
18650 1600mah 24A (15C)
14500 600mah 4.0A (6.7C)
18490 1100mah 16.5A (15C)
18350 700mah 6A (8.6C)

Sony
us18650v3 IMR 2250mAh 10A (4.4C)
SE US18650VTC3 1600mAh 30A (18.75C)

Samsung
INR18650-20R 2000mah 20A (10C)

MNKE
IMR18650 1500mah 20A (13.3C)

Panasonic
CGR18650CH 2250mAh 10A (4.4C)
NCR18650PD 2900mAh 10A (3.4C)

EH IMR
18650 2000 mAh 16A (8C)
18500 1100 mAh 8.8A (8C)
18350 800 mAh 6.4A (8C)
14500 600mah 4.8A (8C)

EFEST IMR
18650 2000mah 10A (5C)
18500 1100mah 8.8A (8C)
18350 800mah 6.4A (8C)
14650 950mah 9.5A (10C)
14500 700mah A (C) (No information found on this one)

Kanthal A-1 Wire Specs: (Ohms Per Inch)
•28 AWG- 0.439 Ohms/in, 0.0508 Diameter (in.)
•30 AWG- 0.696 Ohms/in, 0.0100 Diameter (in.)
•32 AWG- 1.091 Ohms/in, 0.0080 Diameter (in.)
•33 AWG- 1.383 Ohms/in, 0.0071 Diameter (in.)
•34 AWG- 1.758 Ohms/in, 0.0063 Diameter (in.)

1.2 mm ID = 3/64 drill bit

Calculate Coil Resistance & Battery Life
PV Web Apps

 

[patrao_n]

Although you can theoretically go off of the pulse rating, I wouldnt. If your mod ever has the button depressed by accident for a longer period of time than normal vaping you would run into trouble alot sooner. If it went on long enough it wouldnt even matter what the pulse rating was. Or the continuous. It would heat the atty and throw the battery into thermal runaway. But having the coil under the continuous amp limit would allow more time before a problem arised. I always go by continuous.

Sent from my SPH-L900 using Tapatalk

 

[emus]

I get big clouds w/ 0.9 ohm dual coil, twisted 30 GA kanthal wire, not too tight untwisted cotton ball strand wick through coil. Two 1/8" air holes. Try to place coils in direct path from air hole to bottom of drip tip. Minimize any wick air obstruction touching coils. Safety pressure vent holes drilled on both ends of mod; should be able to blow easily through both ends of mod. Direct lung pull. 50 to 100% VG; as much as wick can wick.