Low mah and low resistance

[plastictree]

I remember when I was looking for lr cartomizers for my sb that it said don't use on pv's less than "x" mah(can't remember, like 250). Is this because that pv's at such low mah are stick batteries, and that stick batteries are usually 4.2v off the charge? 4.2 with 1.7 ohms will burn the cart, I know from experience. Or is the lr cart limitation directly impacted because it's such low mah and somehow that screws things up too? The reason I ask is because I've seen stick batteries regulated at 3.6, and the new eroll or emini is also regulated at 3.7(correct me on that if I'm wrong). I'm looking for a stick battery and if I could get the regulated 3.6 one I could use 1.7 ohm carts which would be perfect. (don't post about ego's, don't want an ego)

 

[paulishuku]

I think it could have something to do with the amp draw. The stick batteries just cant handle the amount of amps the LR coils could be pulling.

 

[steved5600]

Ok mah is related to the life of the battery a 650 mah battery will run for 1 hour at 650 miliamps current flow. Volts and ohms do matter and you do need to do that kind of math.
Here is a chart to help.
View attachment Copy of vap watts calc v2.5-2c.xlsx
And a spread sheet to help with it. The chart shows the zone that most attys run in. Things that have an effect on that are the type of atty the delivery systems ability to keep up the juice flow to the atomizer etc. Hope this helps.
Volts are electrical pressure ohms are the resistance as in water the smaller the pipe or hose the greater the resistance. Amps are the volume of the electrical flow like with water gallons per hour.

 

[plastictree]

I'm just curious about the whole mah limitation they put on these carts. Would you say that a 170 mah battery regulated at 3.6 volts is good for 1.7 ohms? since it's regulated. I know if it was 1500mah it deffinently would.

Most of these 4.2v stick batteries do drop to 3.75, but its still 4.2 so it burns the atty

 

[JAY73]

idk all i know is i have used 1.7ohm cartos on an 4.2v stick batt with 180mah and brand new batts would last two weeks if i was lucky...

 

[gthompson]

mAh doesn't have anything to do with it.

 

[plastictree]

mAh doesn't have anything to do with it.

Then what does? if its killing the battery and all.

I'd like to hear from someone who has vaped lower than 2 ohms on a second gen kr808 battery

 

[gthompson]

Like steved was saying above, mAh is milliamp hours. All it is is a measure of how long the battery will last (in a nutshell). It has no direct relation to volts or ohms or watts. The lower your resistance (ohms) and the higher your volts, the faster your battery will drain, no matter what mAh the battery is. That's because lower ohms and higher voltage means higher amps. The more amps, the less hours.

 

[denali_41]

you can use those 1.7's on that stick battery,but i doubt they will last an hour !!!!

i use to put 1.2's on my 650 mah ego,,it would never last more then three hours that way

 

[steved5600]

Only thing that has an effect on frying attys it the voltage being used and the resistance of the atty. That is WATTS. mah is only how long the battery will last at a given amperage. If you go with high voltage and low ohms attys you will fry them given enough time and/or voltage. You will also burn your juice and get a hell of a TH. You may even damage your battery. So you need to watch that the chart above etc will help.

For a longer battery live either use less voltage or get one with a higher mah ratting. In this case bigger is better but you still have a wattage limit. To high a wattage and something will let go.

 

[denali_41]

Only thing that has an effect on frying attys it the voltage being used and the resistance of the atty. That is WATTS. mah is only how long the battery will last at a given amperage. If you go with high voltage and low ohms attys you will fry them given enough time and/or voltage. You will also burn your juice and get a hell of a TH. You may even damage your battery. So you need to watch that the chart above etc will help.

For a longer battery live either use less voltage or get one with a higher mah ratting. In this case bigger is better but you still have a wattage limit. To high a wattage and something will let go.

thanks,,i forgot to add that,,,the set up i mentioned runs at 9 watts.that is way too high !! those 1.7 on those supposedly 3.7 regulated batts will run at 8 watts.that is way too much and you won't like it at all,the throat hit will be like inhaling a fire
the only way it works even half way decent is with 100% PG which flows fast enough to help keep the coil temp down

1 burns the juice so bad it is not pleasant
2 really burns through the juice
3 shortens the battery charge dramatically


in short,you'd be at your best if using a 2ohm carto

 

[jazzbo]

Simple Ohm's Law (handy to know for figuring out what to buy for what device):

E
_____
I R

Where E = voltage, I is current and R is resistance. To figure the current drawn by a setup, divide the voltage (E) by the resistance (R).
Using a 510 "stick" battery of 3.7 volts, placing a 1.5 ohm load will cause the current draw to be 2.46amps (2460mA). The current limiter (assuming there is one) will probably be set at 2amps...and a 220mAh battery under such conditions wouldn't last very long at all between charges. And over time it may burn out the current limiter. And if there sin't a current limiter, the battery would likely become damaged from such a high current drain.

You can figure out wattage if you wish quite easily since you know the voltage and the resistance (and can therefore figure out the current drawn). P=I*E where power equals current times voltage (direct current only). So 2.0amps at 3.7 volts is 7.4 watts.

 

[651stp]

i've used LR 306's on my stick batts and they function just fine. They die pretty quick though usually lasts for like 3 hours from my amount of vaping.

 

[Plumes.91]

651stp... what they are saying is, it might work now, but it will possibly kill your little stick battery in the future.

 

[Bozzlite]

I think it could have something to do with the amp draw. The stick batteries just cant handle the amount of amps the LR coils could be pulling.

Good answer. 650 mah is the bare minimum for cartomizers rated around 1.7 - 2.0 ohms. I would not recommend at all using an LR (below 2.2 ohms) on a 280 mah battery.

 

[denali_41]

actually i don't like the experience of using a LR carto at all,,at any setting

i like 2.6ohms @ 3.7 volts on a carto,with a geney the resistance has to be a lot lower to get the same experience,,plenty of vapor and lots of flavor

but to each their own

 

[AttyPops]

There is some logic in it. The more mAh...the bigger the battery (more electrolyte) and thus the more amps it will allow to draw before overheating/maxing out. So it's like paulishuku said......amps.

Of course newer type of electrolyte could change that I suppose. But remember...Li Ion batteries have resistance. Resistance with high draw = heat. Heat = eventual breaddown and/or BOOM. However, I have NEVER heard of a stick battery going boom due to this (not on the charger). It may happen, IDK. So no guarantees.

Depends on how much you want to stress a stick battery.

The OTHER reason.... it's like shooting yourself in the foot. The stick batteries don't last long on a good day with std ohms. Use em up even faster with lower ohms and you'll have to carry a "pack" of em around...like 20 batteries. lol.