I had to get some 2.4ohm coil heads because 1.8-2.0ohm was out of stock. I've never used anything above 2.0ohm so my question is, what wattage should I use with these coils? Should I use my usual 7 watts, or go up to 7.5? What wattage do you guys use for a 2.4ohm coil?
What wattage to use with a 2.4ohm coil?
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If it were me I would start lower and just go up until you start tasting a hint of a burnt taste and then turn it down a notch.
I agree with mattiem's advice above.
Many manufacturer's are including recommended wattage ranges for their coils, either on the packaging or engraved on the coils themselves.
You could also use a Safe vaping Power Chart if your device displays volts as well as watts, but these charts are only good as a general guideline and were really meant for use with cartomizer atomizers. (Click image to enlarge)
According to this chart, a 2.5 ohm coil would perform well between 4.6 volts to 7 volts.
Back in the day, we used the "Ohm Plus Two" formula. If your coil resistance was 2.5 ohm, you add the number two, and the sum is the voltage recommended.
Many manufacturer's are including recommended wattage ranges for their coils, either on the packaging or engraved on the coils themselves.
You could also use a Safe vaping Power Chart if your device displays volts as well as watts, but these charts are only good as a general guideline and were really meant for use with cartomizer atomizers. (Click image to enlarge)
According to this chart, a 2.5 ohm coil would perform well between 4.6 volts to 7 volts.
Back in the day, we used the "Ohm Plus Two" formula. If your coil resistance was 2.5 ohm, you add the number two, and the sum is the voltage recommended.
2.5 ohm + 2 = 4.5 volts
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On a regulated mod the resistance is not really of consequence. The coil is just a piece of metal which it is delivering the requested power to. I would be really surprised if you can even tell the difference between the 1.8 or the 2.4
Most of the older style coils run about the same power, and the different resistances get that power at a different voltage, or a higher resistance coil would be used when less power flow is desired at the same voltage. You didn't say what this is though. For example, the Kanger single coil units use the same wire for 1.8 and 2.2 ohms, making the 2.2 one wrap larger, but the 2.5 ohm is thinner wire with the same number of wraps as the 2.2, bringing the surface area back down to the same or less as the 1.8 .
With mech mods, lower resistance causes more power to flow from a fixed voltage battery, so most assume lower resistance = higher power, although this is not necessarily true. With variable power, a slightly larger coil can be made with the same wire and more wire and wraps, in which case the higher resistance coil is suited to higher power.
With mech mods, lower resistance causes more power to flow from a fixed voltage battery, so most assume lower resistance = higher power, although this is not necessarily true. With variable power, a slightly larger coil can be made with the same wire and more wire and wraps, in which case the higher resistance coil is suited to higher power.
I have used 1.8, 2.0 and 2.5 set at 7 - 7.5w. No noticeable difference....
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