Science project

Supercharged! Which Batteries Last Longest?

Research Questions:

  • How does a battery work?
  • What types of batteries are there? What are their compositions?
  • How much power is in each battery?

Benjamin Franklin first coined the term “battery” when he thought that the arrangement of Leyden Jars look like a “battery of cannons.” The first electric cell was actually invented by an Italian physicist named Alessandro Volta. The unit “volt”, which is used to describe battery power is named after him. He created a chemical cell which contained sulfuric acid. The chemical cell he created wasn't very safe and portable however, but as the years passed, this has obviously been upgraded into what we use today: the finger-width cells that gives power to our lives.

An AA energy cell


  • Different brands of AA batteries- Duracell, Energizer, Rayovac, store brands, etc.
  • Digital Camera (notorious battery-eater..shortens our experimentation time!)
  • Pen/paper These materials can be found at a drug store or an electronics store.

Experimental Procedure:

  1. Place your first chosen battery in the digital camera. Leave it on until it no longer has enough power to keep the camera on. Record the duration of that battery in the chart below.
  2. Repeat the above for all of your chosen batteries.
  3. Evaluate which battery held up the longest against the serious battery eater- the digital camera.
Battery Name

Terms: Voltage; electrodes; alkaline; NiMH; lithium


Disclaimer and Safety Precautions provides the Science Fair Project Ideas for informational purposes only. does not make any guarantee or representation regarding the Science Fair Project Ideas and is not responsible or liable for any loss or damage, directly or indirectly, caused by your use of such information. By accessing the Science Fair Project Ideas, you waive and renounce any claims against that arise thereof. In addition, your access to's website and Science Fair Project Ideas is covered by's Privacy Policy and site Terms of Use, which include limitations on's liability.

Warning is hereby given that not all Project Ideas are appropriate for all individuals or in all circumstances. Implementation of any Science Project Idea should be undertaken only in appropriate settings and with appropriate parental or other supervision. Reading and following the safety precautions of all materials used in a project is the sole responsibility of each individual. For further information, consult your state's handbook of Science Safety.

Add to collection

Create new collection

Create new collection

New Collection


New Collection>

0 items