Effect of Temperature on Quadcopter Battery Life
Aditya Naithani, Brayden Wen
Burnaby South Secondary
Floor Location : J 149 D
In our experiment, we investigated the battery life of a Lithium-Polymer battery inside a quadcopter drone under different temperatures. Our hypothesis was that higher temperatures would make the battery life of the quadcopter longer. The quadcopter we used in our experiment required lithium- polymer batteries similar to the battery in most mobile phones. To do this experiment we used a quadcopter drone, the Drone controller,a 380mAh Lithium-Polymer Battery, a thermometer,a stopwatch accurate to seconds, a Pencil and some paper. First we charge the battery of a quadcopter until it is fully charged, then we find a suitable location to fly the drone and record the temperature. One of us will fly the drone while the other starts timing as soon as it's in the air. We flew the drone at around chest level at all times to control the possibility of different wind speeds and air pressure at higher altitude. We fly it until it alerts the user that it is at 20% battery life remaining, because if the battery is drained completely, it will damage the battery. Then we record the total flight duration and the temperature. We repeated this process 8 times at different temperatures. When we were finished the experiments almost all the trials directed us to the conclusion that higher temperatures indeed allow the battery life to be longer. However, the optimal temperatures to fly a drone at would be 25 degrees Celsius because too cool would slow the chemical reaction within the battery but too hot can evaporate the battery fluid internally damaging it. The control of this experiment is that every time the drone was charged fully. The dependent variable is the different temperatures and the independent variable is the flight time.
The results from this experiment can be applied to people who use RC vehicles as a hobby or professionally, as well as anyone that uses Lithium-Polymer batteries.