If a battery is in cold and hot temperatures, then it will lose power faster and not last as long, because the chemical reactions inside the battery slow down.

A battery is a device that that converts chemical energy directly into electric energy. It is a container that stores that energy until it is needed to be used. The function of a battery is to accept, store, and release energy all on demand. Chemicals inside the battery store the energy. When it is time to use the battery, the chemical energy changes into electric energy by being transferred through a mechanical reaction called the redox reaction. 

Variables

• Manipulate Variable: The temperature.
• Responding Variable: The Battery.
• Controlled Variable: Xbox controller.

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 Our hypothesis was partially correct because we said that the battery life would shorten and the performance would be worse. In the end the batteries in the hot environment died instantly as soon as I put them in the Xbox controller. On the other hand the batteries in the cold environment gave of a little bit of energy because it flashed a couple of times then it died. We realized the best way to keep your battery at its full performance is to  keep it in a room temperature and dark environment.

We could have done many things better but a key one was that maybe we could have used higher temperatures, which would have given us a stronger outcome. Another key observation we could have done was to graph it in a more organized way. Also we could have checked them at the same time everyday and maybe check more consistently everyday, because I don't think we got a significant change for each day. 

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The change in template through out the days.

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I sincerely appreciate the guidance and support of my advisors and mentors in exploring the thermal effects on battery. I acknowledge the resources and research materials that have enabled this study, making this work possible.