Hi, I'm new to the vaping and been researching a lot on ohms law, resistance, battery and wattage before I try things out. Its still confusing after many attempts but to be on the safe side I just wanted inputs from experienced people in the vaping community to see if, it is safe to fire a .25ohm coil on a regulated mod with dual battery (2 Samsung 25R batteries) at 80-100 watts. Thanks
Batteries/Wattage
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I do about the same and no issues here, also i don't see anything wrong but someone will probably be along with the proper battery guides and some more 
Btw i use a dual 18650 mod with a .3 0hm build at about 60 watts atm but i can probably go higher if i wanted to.
Btw i use a dual 18650 mod with a .3 0hm build at about 60 watts atm but i can probably go higher if i wanted to.
On a regulated mod it doesn't matter how low your build is in terms of resistance (Ohms) as the battery can't see the coil.
Your only concern is the amps you are asking your batteries to supply.
Amps = Power (watts) / Volts
Your batteries are 3.7v nominal, but you need to calculate for the lowest available volts as the battery runs down.
If you think of this as 3.2v you should be okay.
Therefore:
120watts / 3.2 / 2x batteries = 18.75 amps
Just think of it as 60watts per battery if using any 18650 with a 20amp CDR.
Your only concern is the amps you are asking your batteries to supply.
Amps = Power (watts) / Volts
Your batteries are 3.7v nominal, but you need to calculate for the lowest available volts as the battery runs down.
If you think of this as 3.2v you should be okay.
Therefore:
120watts / 3.2 / 2x batteries = 18.75 amps
Just think of it as 60watts per battery if using any 18650 with a 20amp CDR.
Here is a nice How To Calculate Battery Amp Draw for Regulated Mods...
Calculating battery current draw for a regulated mod | E-Cigarette Forum
Notice that the Resistance of the Atomizer (Coil Ohms) plays No Part in Battery Amp Draw on a Regulated Mod.
I don't see a problem with it, other than you may not get stellar battery life, but a regulated mod is more forgiving in that it will just refuse to fire rather than overstress the batteries. You may want to consider a 3 battery mod at those wattages though.
Best of luck,
Anna
Best of luck,
Anna
Hello and welcome to the ECF community. You've already been given great advice. You could read Mooch's blogs for morea comprehensive education.
In the interests of keeping things simple:
When using a regulated mod, if you use a good quality 20 amp CDR battery like the Samsung 30Q or the LG HG2 then you are good for 60 watts per battery. If using a 2-battery regulated mod, your good for 120 watts as you have two batteries. If you are using a 3-battery mod, you're good for 180.
If you use a single 30 amp CDR battery like the LG HB6 you are good up to 90 watts; with a pair of 30 amp CDR batteries you could safely do 180 watts assuming the mod cuts off when the batteries reach 3.4 volts.
60W or higher:
LG18650HB6 1500mah 30 amp CDR
LG18650HB2 1500mAh 30 amp CDR
LG18650HB4 1500mAh 30 amp CDR
30W-75W:
Sony 18650VTC5A, 2500 mah 25 amp CDR
30W-60W:
LG 18650HG2 3000mah 20 amp CDR
LG 18650HE2 2500 mah 20 amp CDR
Samsung 18650 30Q, 3000 mah 20 amp CDR
Samsung 18650-25R, 2500 mah 20 amp CDR
Sony 18659VTC6 3000mAh 20A CDR
Sony 18650VTC5, 2600 mah 20 amp CDR
Sony 18650VTC4, 2100 mah 23 amp CDR
AW 18650 3000 mah 20 amp CDR
Battery Basics for Mods: The Definative Battery Guide for Vaping
When using a regulated mod, if you use a good quality 20 amp CDR battery like the Samsung 30Q or the LG HG2 then you are good for 60 watts per battery. If using a 2-battery regulated mod, your good for 120 watts as you have two batteries. If you are using a 3-battery mod, you're good for 180.
If you use a single 30 amp CDR battery like the LG HB6 you are good up to 90 watts; with a pair of 30 amp CDR batteries you could safely do 180 watts assuming the mod cuts off when the batteries reach 3.4 volts.
60W or higher:
LG18650HB6 1500mah 30 amp CDR
LG18650HB2 1500mAh 30 amp CDR
LG18650HB4 1500mAh 30 amp CDR
30W-75W:
Sony 18650VTC5A, 2500 mah 25 amp CDR
30W-60W:
LG 18650HG2 3000mah 20 amp CDR
LG 18650HE2 2500 mah 20 amp CDR
Samsung 18650 30Q, 3000 mah 20 amp CDR
Samsung 18650-25R, 2500 mah 20 amp CDR
Sony 18659VTC6 3000mAh 20A CDR
Sony 18650VTC5, 2600 mah 20 amp CDR
Sony 18650VTC4, 2100 mah 23 amp CDR
AW 18650 3000 mah 20 amp CDR
Battery Basics for Mods: The Definative Battery Guide for Vaping
It's fully possible to overstress the batteries in a regulated mod. One should always keep the wattage within the limitations of the batteries, anything else is taking unnecessary risks.
Sent from my Thor E using Tapatalk
This discussion is regarding use of regulated Mods and the calculator you have linked to is completely incorrect for regulated mods.
A regulated mod cannot see the coil and therefore the resistance of the coil is not a factor when looking at amp draw.
IMO that is not correct.it has to put volts to the coil witch has a set resistance.how does this mod change ohms law?
The point of my calculator was to be able, quickly, to make sure I/others were vaping in a 'safe' range for our batteries.
Ohms Law calculations pertain to any/every electrical device.
Remove your coil, (resistance), from your regulated, or for that matter, any mod, and let me know how well it works!
Ohms Law calculations pertain to any/every electrical device.
Remove your coil, (resistance), from your regulated, or for that matter, any mod, and let me know how well it works!
The battery(s) provide power to the chip /regulator/ magic gizmo board which provides the user set power to the delivery device. Two separate circuits, input - from battery(s) to chip / output from chip to delivery device.
When using a regulated power device resistance has no bearing on battery amp draw.
It has already been posted ---> Calculating battery current draw for a regulated mod | E-Cigarette Forum
When using a regulated power device resistance has no bearing on battery amp draw.
It has already been posted ---> Calculating battery current draw for a regulated mod | E-Cigarette Forum
just because its on the internet does not make it right,but it could be the gizmo at work.
It is my understanding that Ω only comes into play concerning how low a Ω a regulated device will fire or if you are using the correct batteries for wattage needed to fire said coil. Please correct me if I am wrong.
This thread is making me confused, man. It's okay, I was confused before, and now I still am
Anna
Confused because 'nicotinerush' seems to be taking credit for what 'the wind' posted?
2 user names same person?
Or, because even now this long after regulated devices have been the norm some folks still don't understand how they actually provide power to the delivery device.
Watt's Law;
States the relationships between power (watts), current (amps) and voltage.
Questioning the validity of what @Mooch has taken time to explain
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