Your battery sends voltage to the cartridge’s heating element, which turns it into heat. More voltage usually means more heat, but voltage isn’t the same as temperature.
What controls the heat
- Battery voltage
- The cartridge’s resistance
- How long you draw
- Time between draws
- Battery condition
- Airflow
- How warm and runny the extract is
Finding the balance
Too low and you get weak vapour and extract left in the airway. Too high and the vapour turns hot, harsh or burnt, and the heating system can be damaged.
That’s why the best setting is a range, not one number. Start at 2.0–2.4V, stay within 2–3V and make small changes only when you need to.
Every battery is different
Two batteries showing the same voltage can behave differently. If something feels off, try another good-quality 510 battery.
