Related Experiment Video
Updated: Dec 24, 2025

A Microcontroller Operated Device for the Generation of Liquid Extracts from Conventional Cigarette Smoke and Electronic Cigarette Aerosol
Published on: January 18, 2018
Low powered variable voltage E-Cigarette batteries under perform at higher power settings.
Evan L Floyd1, Subekchhya Subedi1, Theodore L Wagener2,3
1Department of Occupational and Environmental Health, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA.
Variable voltage electronic cigarette (EC) batteries undersupply power above 8.5 watts, affecting nicotine delivery. Researchers must measure actual power output for accurate EC studies.
Area of Science:
- Tobacco regulatory science
- Analytical chemistry
- Electrical engineering
Background:
- Electronic cigarettes (EC) use is rising, necessitating accurate dose-response data.
- Variable voltage (VV) ECs offer adjustable power, but their performance is not fully understood.
Purpose of the Study:
- To investigate the battery performance of VV ECs.
- To determine the actual power output at various settings during simulated vaping.
Main Methods:
- Six VV EC battery brands were tested.
- Power output was measured using a single atomizer with two different resistance coils.
- Tests were conducted at four voltage settings in a blocked randomized structure.
Main Results:
- VV EC batteries supplied power linearly up to approximately 8.5 watts.
- Above 8.5 watts, all batteries undersupplied power, plateauing around 9-10 watts.
- Battery dial settings were accurate when disconnected from an atomizer.
Conclusions:
- VV ECs undersupply power at higher settings, impacting nicotine and pyrolysis product delivery.
- Studies correlating VV EC power with effects should measure actual power output to avoid negative bias.
- Accurate power measurement is crucial for reliable EC research.
More Related Videos
08:39Generation of Electronic Cigarette Aerosol by a Third-Generation Machine-Vaping Device: Application to Toxicological Studies
Published on: August 25, 2018
10:44Comparing the Effects of Electronic Cigarette Vapor and Cigarette Smoke in a Novel In Vivo Exposure System
Published on: May 24, 2017
Related Concept Videos
Multiple Voltage Sources
In series, the positive terminal of one battery is connected to the negative terminal of another battery. Hence, the voltage of each battery is added to give the net voltage, which is increased because each battery boosts the electrons that enter it. The same current flows through each battery because they are connected in series.
Batteries are...
DC Battery
Power Dissipated in a Circuit: Problem Solving
The simplest combinations of resistors are series and parallel connections. In a series circuit, the first resistor's output current flows into the second resistor's input; therefore, each resistor's current is the same. Thus, the equivalent resistance is the algebraic sum of the resistances. The current through the circuit can be found from Ohm's law and is equal to the...
Voltage Doubler Circuit
Design Example: Automobile Ignition System
One can generate a large voltage using a car battery of 12 volts with the help of inductors. Inductors are known for opposing...
Batteries and Fuel Cells