Only the power setting you use determines how much current is drawn from the battery (up to the voltage/current limits of the device).
The battery isn’t connected to the coil, the regulator circuit board is. So if you’re using a device in variable-wattage (VW) mode then the battery will always just have to feed enough current to the regulator to make that amount of power. If you change the coil resistance, but not the power setting, the battery current will not change. Only if you change the power setting will the battery current change (assuming the mod doesn’t throttle back due to low battery voltage).
For more information on calculating the actual battery current:
Or, for mobile users:
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