Just so everyone knows, I have no clue about ohms, voltage and wattage stuff. This is my first mod, so when people say low wattage or voltage I don't know about that. Maybe Someone could tell me ohms to voltage or wattage ratio and some more info. Also I am getting a sub ohm kanger tech subox mini for my cool fire 4.
The Kanger Subtank Mini is a great tank for learning to make your own coils using the rba (easy and CHEAP). The first best advice I can give is you will probably have to cut your nicotine level in half or more when you use this tank. It is a large increase in volumn of vapor, and will seem like it's guzzling the juice. Twice the juice = twice the nicotine.
With the Coolfire you press the POWER button and PLUS button for 1 second together to set the mod to read watts/volts. Most people use watts. With the tank you now have turn the Coolfire all the way down using the MINUS button, it should stop at 6 or 8 watts. Thats where you start to find the vape with your existing tank.
The Subtank will come with different coils (rba usually is prewired and needs wicked at .5 ohms) On the side of every coil it should have the resistance of the coil (.5 ohm for example) or the wire type (Ni for nickel + .15 or whatever the resistance will be for temp control coils). On the regular (Kanthal wire) power mode coils it usually will say .5 with the ohm symbol AND 20-35 watts (the recommended power range) for the coil(for example).
ALSO... the coil will need "PRIMED" before use. Put the coil in the bottom half of the tank. Drop a few drops of juice down the open end of the coil (called the coil chimney). Add a drop or two to the side of the coil where you can see the cotton. Put everything together and fill tank. Take a few UNPOWERED draws (I cover the airholes to create greater suction through the coil) to help the coil wick the juice BEFORE use. Let tank sit for a few minutes for natural wicking. (prepping the coil before use will help the coil last longer, as once the cotton gets burnt the coil is done)
BUT.. The rule of thumb for EVERY vape device you'll ever own is the same. Start low power, take a draw and bump it up to repeat. If it starts to taste funny, gets too hot or tastes burnt, back it down. Different flavors will have different sweet spots so you just have to experiment.
If you start with the .5 ohm coil, set the watts to 18 or 20 for the first medium draw. The first couple hits on a new coil are to insure the coil is wicking the juice properly. You don't want full power in case the cotton is not saturated with juice.
I swapped out the wide bore drip tip (mouthpiece) for a cheap plastic 510 sized drip tip that has a more narrow opening. By adjusting the airflow to half or middle setting I can easily mouth to lung vape.
Check out you tubes on Subtank Mini rba wicking/coil building. It will take some practice but once you get it right it's very cheap and very convenient when the coil needs changed.
