AA Alkaline Batteries: Capacity Testing

Overview

Objectives/Goals My objective was to find out which brand of AA alkaline batteries lasts the longest under a fixed load. My hypothesis was that the Energizer Advanced Formula brand would last the longest because their commercials always say they do. Methods/Materials I created a test circuit which included a battery holder, a precision resistor, and an on/off switch. I repeated the circuit 18 times. My procedures were: I measured each battery every half an hour for two hours. Then turned off all the switches and repeated the same process 24 hours later. I did this for seven days. Lastly, I graphed the data. Results 13 out of 17 brands performed about the same. The other 4 did poorly. Of the 4 that did not do well, two of the brands were "heavy duty" batteries. Conclusions/Discussion - My data did not support my hypothesis. The Energizer Advanced Formula brand battery preformed only average (about the same as most of the other brands). - One of the cheapest batteries, the Safeway Select brand, did as well of the Energizer Advanced Formula. - There is no relation in how well the batteries did and their price.

Competition history

• CSEF 2002 Electricity & Electronics · Entry J0723

Resources

• CSEF project summary ↗

Related projects

Closest projects by meaning, across every fair and year in the corpus.

Browse more like this

• All Physics and Astronomy projects
• CSEF Physics and Astronomy projects
• Every CSEF 2002 project