Resistor down the Omega?

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NoMansFriend

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Aug 10, 2010
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Hey guys, had my Omega for about 10 days now. Really enjoying it, works really well at 3.7v with a low-res atty.

Got some RCR123a batteries to try it out at 6v. The amount of vapor it produces is awesome, but its running way too hot for me to use it at 6v all the time.

Now I enjoy 3.7v vaping with a low-res atty. However, I do find myself wanting just a little extra kick, but 6v seems to be a bit too much, for me anyway. Ive yet to try a 5v device. Im thinking 5v could be a "sweet spot" for me, but I dont have the money to buy another mod, nor will I anytime soon. So Im curious to know if there is a way to add some extra resistance to the Omega so its not quite as intense with the CR123a batteries?

Im thinking that replacing the hot spring with a normal spring might work, but Im not sure where to find a good spring that would fit and still work effectively in this device.


If anyone has any ideas or suggestions, I would greatly appreciate it. Thanks!
 

Quick1

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If anyone has any ideas or suggestions, I would greatly appreciate it. Thanks!

Just checking, but what RCR123a's are you using? A regular old Li-Ion RCR123a is going to be a 3.7v cell. So charged up and at 4.2V two of them are going to put you close to 8v. If they are 3.0v (regulated) RCR123a's then they're going to run about 3.2v each fully charged for just over 6v. big difference.
 

Quick1

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Thanks for the reply, Ill have to give those a shot. Do you still get that 6v vapor/throat hit out of a HV atty?

No. depends. It's all about wattage or how hot you're running the coil in the atomizer. Use Ohm's law to calculate your effective current/wattage for comparison purposes.

Ohm's Law Calculator

couple of examples:
2.2 ohm atomizer @ 4v == 1.8 amps == 7.3 watts
1.8 ohm atomizer @ 4v == 2.2 amps == 8.9 watts
2.2 ohm atomizer @ 6v == 2.7 amps == 16.4 watts
2.2 ohm atomizer @ 5v == 2.3 amps == 11.4 watts
3.0 ohm atomizer @ 6v == 2.0 amps == 12.0 watts
That last one is my personal favorite :)

HV atomizers?
3.5 ohm atomizer @ 6v == 1.7 amps == 10.3 watts
4.5 ohm atomizer @ 6v == 1.3 amps == 8 watts

So you should be able to find your preferred wattage with some combination of battery and atomizer.
 

doots

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Thanks for the reply, Ill have to give those a shot. Do you still get that 6v vapor/throat hit out of a HV atty?

HV attys are very nice on the Omega.
Which ones to get depends on which rcr123 batts you are using..
2-3.2v or 2-3.7s
it makes a difference on which HV atty you get..

I use a 4.5 ohm HV att for 2-3.7v batts= 7.4.
I use a 3.5 ohm for 6.4v

There is a big difference in that
the heat is reduced in the vape you get but you retain the density of the vape without the burning..

hope this helps.
 

NoMansFriend

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Just checking, but what RCR123a's are you using? A regular old Li-Ion RCR123a is going to be a 3.7v cell. So charged up and at 4.2V two of them are going to put you close to 8v. If they are 3.0v (regulated) RCR123a's then they're going to run about 3.2v each fully charged for just over 6v. big difference.

Im using the 3v Tenergy LifePO4's, thanks for posting that link to the Ohm calculator, that should really come in handy. And I thank everyone else for their input as well.

Based on what Im reading I think a 3.5 Ohm atomizer would work well for me. Right now Im vaping at 3.7v with a low resistance, 1.5 ohm atomizer. According to the calculator that would generate 9.12 watts, which is pretty good but Id like to have just a little more. A 6v device with a 3.5 ohm atty would generate 10.2, that could be a nice sweet spot for me.

This may sound dumb on my part, but Im pretty sure my standard 510 attys are about 2.5 ohms, so that would generate a lot of power at 6v, and Im probably right around 7v with those batteries fully charged.
 
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Quick1

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Yeah I think Im going to give that a shot and see how it goes, a 4.5 Ohm atomizer would probably be too much resistance. If I can be somewhere in that 10-12 watt range I think that would work well for me.

Thanks for your help.

With the batteries you have now you're probably around 8v fully charged! And your 510 attys (if you got em here -- real live Joyes) are probably closer to 2.2 ohms with a very few ranging up towards 2.4 ohms. I doubt they'd last more than a puff or two at 8v and sometimes they don't last me more than a couple of days at 6.4v :). They are a bit hot. Try the 3.5 ohm HVs and if that doesn't do it for you try the 901s here. They tend to run right around 3 ohms.

If you haven't made your decision on batteries yet you might want to ask for the specs on those particular LiFe's. There are a wide variety of them out there. Some are high discharge rated some are very low discharge rated. few are protected. Vaping is not continuous draw which is what the max discharge rate numbers are for but we're drawing around 2 amps when you hit the button so you want to be in the ball park.
 

NoMansFriend

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Thanks for the info Quick, Im using the Tenergy silver and yellow, 750mah 3v LifePO4 RCR123a's from Battery Junction. I would post the link but it will not let me since I do not have enough posts.

On Battery Junction, it says the peak voltage is 3.6v, but Im hardly a battery expert so it could be higher for all I know. Ive seen E-Cig vendors selling these exact same batteries and claiming that they are protected, although Battery Junction doesnt mention anything about protection, it just says "never explode or catch fire". I dont know if that makes em any safer or not, haha.

I found an old worn out 510 that seems to be working well at the moment, and I went ahead and ordered some 3.5 ohm atomizers. We'll see how that goes.
 
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Quick1

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Rechargeable LiFePO4 RCR123A 3.0V 750mAhBattery
Life cycle: 2000 times (Traditional Li-ion: 500 times)
Never explode or catch fire
Working Voltage:3.2V and Peak Voltage: 3.6V
Charging cut-off voltage: 3.6V
Discharge cut-off voltage: 2.2V
Please never overdischarge battery below 2.2V/cell

This is a clue that they are not protected. Not sure why they say "cut-off" voltage above because the next line implies they don't automatically cut off -- which a protection circuit would do.

Charge the this battery with LiFePO4 RCR123A smart charger.
Capacity: 750 mAh
Maximum discharging rate:< 550 mA
Maximum charge current: <550 mA
Cell's dimension: 17mm Dia. x 34.5mm H.
Weight: 0.6 oz (18 grams).

Max discharge rate less than 1/2 amp... You're going to be trying to draw well over 1 amp. If they did have a protection circuit you wouldn't be able to vape with them at all. People ARE using them so they don't have a protection circuit.

"Never explode or catch fire" doesn't mean they won't vent or expell really hot goo. No one that I know of has had a problem with them but they wouldn't be my choice.
 

boochips

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Never really understood the HV atomizers, I'll get some on my next order for those that want to commit to them. I'll see if we can get some extra old style springs when I see chad tomorrow :)
I'm with ya on that Rob....they didn't impress me in the least. I much prefer a regular old atty. Especially the low bridge 801s. :D They are better than sex at 6 volts.
 

NoMansFriend

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No one that I know of has had a problem with them but they wouldn't be my choice.

They werent my first choice either, but I tried the protected blue and silver 123's and they didnt work in my Omega.

I read your comments in that other thread about your first set not working and returning them and all that. I dunno, maybe Ill give those another shot but I typically dont order a product twice if it doesnt work the first time.

I kind of assumed that they didnt work because the protection circuits were doing exactly what they were supposed to do, cutting off power at a certain voltage or whatever.
 
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boochips

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This is a clue that they are not protected. Not sure why they say "cut-off" voltage above because the next line implies they don't automatically cut off -- which a protection circuit would do.



Max discharge rate less than 1/2 amp... You're going to be trying to draw well over 1 amp. If they did have a protection circuit you wouldn't be able to vape with them at all. People ARE using them so they don't have a protection circuit.

"Never explode or catch fire" doesn't mean they won't vent or expell really hot goo. No one that I know of has had a problem with them but they wouldn't be my choice.
I've been using them for a year with NO problems....
 

Quick1

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They werent my first choice either, but I tried the protected blue and silver 123's and they didnt work in my Omega.

I read your comments in that other thread about your first set not working and returning them and all that. I dunno, maybe Ill give those another shot but I typically dont order a product twice if it doesnt work the first time.

I kind of assumed that they didnt work because the protection circuits were doing exactly what they were supposed to do, cutting off power at a certain voltage or whatever.

The green CR2's that you use in a BB have a circuit that cuts off if you're using less than 3.0 ohms atty/carto. The silver and blue RCR123a's work great in my SB and Omega with as low as 2.2 ohm atty's (never tried anything lower). I think AW may have protected RCR123a's also.
 
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