What battery do I need for this mod? Do I need a 20 amp cell or will 10 amp batteries drive it. I test vaped it with my atlantis tonight at a vape shop and it really vaped well. I just wish there was more information on it. Such as how high of a coil will it push 30 watts. How reliable is the chip at creating the intended vape far as putting out the correct voltage to achieve the desired wattage?