Hi, are you having burnt taste when vaping, you need to match your coil resistance with the battery voltage
list below gives you an idea
resistance 1.7ohm to 1.9ohm 3.1 to 3.4volts
2.1 to 2.3ohm 3.5 to 3.8volts
2.4 to 2.6ohm 3.9 to 4.2volts
2.6 to 3ohm 4.3 to 4.7volt
It is easier to have an variable voltage battery, if not the above chart should help
If you are using double coil,double the ohms to get the right voltage
If your voltage is lower it will taste ok, not burn as well as it could
If your voltage is too high, that is why you get the burnt taste
Hope this is helpful
list below gives you an idea
resistance 1.7ohm to 1.9ohm 3.1 to 3.4volts
2.1 to 2.3ohm 3.5 to 3.8volts
2.4 to 2.6ohm 3.9 to 4.2volts
2.6 to 3ohm 4.3 to 4.7volt
It is easier to have an variable voltage battery, if not the above chart should help
If you are using double coil,double the ohms to get the right voltage
If your voltage is lower it will taste ok, not burn as well as it could
If your voltage is too high, that is why you get the burnt taste
Hope this is helpful