Ok so on a mech
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LOL... no need to be embarrassed, we're just a bunch of virtual folks you're probably never gonna meet anyway. Ask away....
You see? Not a silly question at all. Unfortunately I don't know the answer, but others will.
That depends on your knowledge of battery safety.
If you have it, it is safe. If you don't, it is not.
Do you know what the resistance of your build is? What is the fuse rated for? What kind of battery are you using?
Just curious......
"Safe" is a relative term. The type of question that you asked shows that you haven't done much if any research into mod or battery safety, or rebuildable atomizers. That's ok, we're glad you are asking now and preventing a potential catastrophe. This is the place to learn what you need to know. That salesman was covering your back, whether you know it or not.
Anytime you use a battery with the stored energy it contains you are taking some degree of risk. That risk increases as you get closer to the grey area of what is or isn't considered safe when using that battery. Some people believe doing sub-ohm coils is an unnecessary risk to take because it can push a battery beyond its safe limits if you don't know what you are doing. Staying within a battery's amp limits by making a coil within the battery's limits is one key to safer sub-ohm vaping.
The lower you build a coil, the amperage required from the battery increases exponentally.
1 ohm coil will draw 4.2 amps from the battery,
o.6 ohm coil will draw 7 amps
o.4 ohm coil will draw 10.5 amps
o.2 ohm coil will draw 21 amps
0.1 ohm coil will draw 42 amps
The typical protected ICR 18650 battery has a 2.6 amp limit.
The typical IMR 18650 battery has a 10 amp limit.
The typical high amp hybrid 18650 battery has a 30 amp limit.
So...never build/use a coil which will draw more amps than you battery has, or bad things happen.
Basically, a mechanical mod has none of the protection circuitry that a regulated variable voltage mod has. Things like a timed auto-cutoff of the fire button, short circuit protection, battery over-discharge protection, reverse battery protection, thermal protection, etc. The regulated mod will recognize trouble before it can happen and will shut itself down to prevent an accident. The amp limit designed into the regulated mod will prevent it from firing a sub-ohm coil.
So you are literally on your own when you use a mechanical mod as far as recognizing short circuits, not over-discharging your battery, not putting a battery in backwards, and always locking your fire button while not in use. Otherwise, very bad things can happen:
Adding a Vape Safe fuse adds at least one layer of safety to a mechanical mod. It will stop a short circuit from occuring and protect your battery. However, the fuse will have an amp limit designed into it so that extreme sub-ohm vaping will trip the fuse. This amp limit varies from the model of each manufacturer of fuse.
http://www.e-cigarette-forum.com/forum/rebuildable-atomizer-systems/562106-ecf-sub-ohm-advisory.html
PBusardo: Thoughts of Sub-Ohm Vaping
Cloud Chasing is Dangerous
http://www.e-cigarette-forum.com/forum/rebuildable-atomizer-systems/462202-how-sub-ohm-vaping-dangerous.html
So, is vaping on a mechanical mod with an RBA using sub-ohm coils safe? Again, this is a relative opinion based on what an individual considers what is "safe enough" for them. Using the right batteries (high drain, high amp IMR/hybrid batteries), having a relatively precise ohm reader/digital multimeter, and a basic concept of Ohm's Law are a neccessity.
Ohm's Law for Dummies
Information Resources for Your First RBA
Battery Basics for Mods
Anytime you use a battery with the stored energy it contains you are taking some degree of risk. That risk increases as you get closer to the grey area of what is or isn't considered safe when using that battery. Some people believe doing sub-ohm coils is an unnecessary risk to take because it can push a battery beyond its safe limits if you don't know what you are doing. Staying within a battery's amp limits by making a coil within the battery's limits is one key to safer sub-ohm vaping.
The lower you build a coil, the amperage required from the battery increases exponentally.
1 ohm coil will draw 4.2 amps from the battery,
o.6 ohm coil will draw 7 amps
o.4 ohm coil will draw 10.5 amps
o.2 ohm coil will draw 21 amps
0.1 ohm coil will draw 42 amps
The typical protected ICR 18650 battery has a 2.6 amp limit.
The typical IMR 18650 battery has a 10 amp limit.
The typical high amp hybrid 18650 battery has a 30 amp limit.
So...never build/use a coil which will draw more amps than you battery has, or bad things happen.
Basically, a mechanical mod has none of the protection circuitry that a regulated variable voltage mod has. Things like a timed auto-cutoff of the fire button, short circuit protection, battery over-discharge protection, reverse battery protection, thermal protection, etc. The regulated mod will recognize trouble before it can happen and will shut itself down to prevent an accident. The amp limit designed into the regulated mod will prevent it from firing a sub-ohm coil.
So you are literally on your own when you use a mechanical mod as far as recognizing short circuits, not over-discharging your battery, not putting a battery in backwards, and always locking your fire button while not in use. Otherwise, very bad things can happen:
Adding a Vape Safe fuse adds at least one layer of safety to a mechanical mod. It will stop a short circuit from occuring and protect your battery. However, the fuse will have an amp limit designed into it so that extreme sub-ohm vaping will trip the fuse. This amp limit varies from the model of each manufacturer of fuse.
http://www.e-cigarette-forum.com/forum/rebuildable-atomizer-systems/562106-ecf-sub-ohm-advisory.html
PBusardo: Thoughts of Sub-Ohm Vaping
Cloud Chasing is Dangerous
http://www.e-cigarette-forum.com/forum/rebuildable-atomizer-systems/462202-how-sub-ohm-vaping-dangerous.html
So, is vaping on a mechanical mod with an RBA using sub-ohm coils safe? Again, this is a relative opinion based on what an individual considers what is "safe enough" for them. Using the right batteries (high drain, high amp IMR/hybrid batteries), having a relatively precise ohm reader/digital multimeter, and a basic concept of Ohm's Law are a neccessity.
Ohm's Law for Dummies
Information Resources for Your First RBA
Battery Basics for Mods
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THANK YOU.
Most of the coils i've built have been in the .8 to 1.5 range, running on an IMR 18650, based on your chart, I think I'm ok.
You are ok with an Efest 18650 IMR at the resistances you described.
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