Our Life and the Battery

Overview

Objectives/Goals The objective of this project was to see if a battery would last longer being turned off and on or staying on continuously. Methods/Materials I used six flashlights, three on continuously and three being turned on and off hourly. Once each flashlight turned off and the batteries had run out, I recorded the time it lasted. When all the flashlights were recorded I rotated them, since I was doing more than one trial. All the batteries were Rayovac. Results The information that I compiled shows that in trial one the on/off flashlights had lasted a total average of fifteen hours and thirty-three minutes. The continuous flashlights in trial one averaged a total of twenty-six hours and eight minutes. On the second trial the on/off flashlights averaged a total of twenty-three hours and the continuous flashlights averaged a total of ten hours and twenty-six minutes. In the third trial the on/off flashlights lasted an average of twelve hours and thirty-three minutes, while the continuous flashlights lasted on average twenty-two hours. Conclusions/Discussion In conclusion leaving a flashlight on continuously saves more energy and you get better life out of your batteries. My observations lead me to conclude that my hypothesis was wrong.

Competition history

• CSEF 2009 Energy & Power (Junior Division Only) · Entry J1026

Resources

• CSEF project summary ↗

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