Do We Get What We Pay For?

Overview

Objectives/Goals To compare the price of each battery by analyzing the cost per one hour of lifetime. Methods/Materials 18x6.5 piece of wood , Hammer, 9 nails, 9 Mini Scew lamp bases, Soldering tool, Soldering wire, 9v Battery Snap Connectors, 9 Screw Base Lamps, 9 Different 9v Batteries, Hot glue gun, Watch. Results The following are the best to least efficient batteries in comparing the cost per one hour of lifetime: Energizer Max, Eveready, Rayovac, Duracell, Panasonic,Energizer and Maxell, Sanyo and with the least efficient ,Duracell Ultra. Conclusions/Discussion Even though my hypothesis was incorrect, I was surprised to find that Duracell and Duracell Ultra did not do as well as I had thought they whould have done. Duracell was actually better than Duracell Ultra. Then by doing some background research, Ifound that tese two batteries had the amazing ability to recharge. After that I found that the two Duracells recharged for a very long time. i had interpreted that Maxell would stay for the longest period of time, but I was wrong. The battery that stayed the longest was Energizer Max. Although the results show Duracell Ultra as the seast efficient, the fact that Duracell recharged repeatedly would make it difficult to conclude that it is costly for its performance on the different batteries, allowing the consumer to select the best buy for his/her bucks.

Competition history

• CSEF 2002 Materials Science (Junior Division Only) · Entry J1101

Resources

• CSEF project summary ↗

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