so the heating coil has a resistance value or (Ohms) this is like back pressure inside the wire that inhibits the flow of electrons.
if your rebuilding
coils you will need a DVOM you can pick one up for around $10 if you shop around. you need to check the ohms of your new
coils before you use them. for a few different reasons. you want to see a steady reading on the meter. it might jump around for the first second or 2 after you connect the probes but after that it should hold steady. if the reading is still jumping around you need to look for a short or a loose connection. after that's out of way we need to know the ohms. we don't want to over load the battery. some
batteries will shut off, others will explode if you over load them. even protected batteries can fail if you try to pull to many amps off of them.
Ohm's Law Calculator
so lets say you made a coil that comes out at 1.8 ohms and you battery puts out a max of 4.2 volts using ohms law we can figure out how much amperage the coil will draw from the battery. (2.3 amps) most of our e cig batteries can handle that.
now lets say you make a sub ohm coil .4 ohms and use a 6 volt battery that comes out to 15 amps. very few devices can handle that so you need to check the max continuous amp rating on your batteries. if your battery can handle 30 amps continuous and the coil will draw 15 then your are most likely fine. most people like to use battery's rated for double the amps the coil is drawing.
so people that use sub ohm coils are looking for the big clouds of vapor, and if you can keep the juice wicking fast enough you will make huge clouds of vapor. but because your new to rebuilding i would suggest holding of on that for a while until your comfortable building coils.
i use a smok tech mini octopus on an EGO USB pass-through with 1.5 ohm coils made from .32 twisted kanthal. i use a 3/4 wrap (three wraps looking at the coil from the top 4 wraps looking at the coil from the bottom) on 2 strands of 2 mm silica wick. it produces plenty of vapor but not huge clouds like a sub ohm build.
so I have ALOT to learn because I'm barely starting learning how to rebuild, any help will be appreciated thank you for your time.
