This thread is a sticky regarding Sub-Ohm vaping. Please feel free to direct your discussion, safety info, and appropriate battery types here, until a dedicated sub-forum can be created.
Special props to sonicdsl for the idea of making this important sticky happen..
Here's some basic info to get things started:
Ohm's Law and Vaping | E-Cigarette Forum
Ohm's Law Calculator
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.)
Sub-Ohm Vaping Vids:
Resistance & Air Flow - YouTube
Batteries, Volts, Amps and You - YouTube
General Battery Info:
Basic to Advanced Battery Information from Battery University
Basics About Battery Discharging
Batteries and Chargers | BudgetLightForum.com
VapeSafe 2 Safety Fuse For Mechanical Mods
Torchy the Battery Boy: IMR "safe chemistry" batteries
The above is a handy link to popular IMR batteries of all sizes used for vaping, tested at constant 1A, 5A and 10A discharge rates. There are also specs which include:
Internal Resistance mΩ
Actual Capacity(mAh)
Length (mm)
Diamater (mm)
Weight (g)
A Couple Of Trusted Battery & Charger Vendors:
Welcome to RTD Vapor
Batteries-Chargers-Flashlights-Only The Best
Popular 18xxx Battery Specs & Amp Limits: (Added 2/04/2014)
Special props to sonicdsl for the idea of making this important sticky happen..
Here's some basic info to get things started:
Ohm's law states that the current through a conductor between two points is directly proportional to the potential difference across the two points. Introducing the constant of proportionality, the resistance,[1] one arrives at the usual mathematical equation that describes this relationship:[2]
where I is the current through the conductor in units of amperes, V is the potential difference measured across the conductor in units of volts, and R is the resistance of the conductor in units of ohms. More specifically, Ohm's law states that the R in this relation is constant, independent of the current.[3]
Ohm's Law and Vaping | E-Cigarette Forum
Ohm's Law Calculator
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.)
Sub-Ohm Vaping Vids:
Resistance & Air Flow - YouTube
Batteries, Volts, Amps and You - YouTube
General Battery Info:
Basic to Advanced Battery Information from Battery University
Basics About Battery Discharging
Batteries and Chargers | BudgetLightForum.com
VapeSafe 2 Safety Fuse For Mechanical Mods
Battery C Rating - The C rating of a battery (or cell) is used to indicate the continuous current draw (amps) the cell will support. By multiplying the C rating times the cell capacity in milliamperehours (mAh), the continuous current in milliamperes (mA) of a cell is easily calculated. Example - For a 2000 mAh battery with a 15C rating, the continuous current that may be drawn out of the battery is 2000 mAh x 15 = 30000 mA, or 30 Amps (A) (divide by 1000). There is also another rating that is applicable to a battery known as peak or "burst" current discharge rating. Peak current is higher than continuous C rating. It indicates that a battery will deliver higher current than the C rating for brief instances.
Torchy the Battery Boy: IMR "safe chemistry" batteries
The above is a handy link to popular IMR batteries of all sizes used for vaping, tested at constant 1A, 5A and 10A discharge rates. There are also specs which include:
Internal Resistance mΩ
Actual Capacity(mAh)
Length (mm)
Diamater (mm)
Weight (g)
A Couple Of Trusted Battery & Charger Vendors:
Welcome to RTD Vapor
Batteries-Chargers-Flashlights-Only The Best
Popular 18xxx Battery Specs & Amp Limits: (Added 2/04/2014)
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