Hypothesis I expect the results to be very close between the two brands of batteries because both advertise to last the longest. But I just have a feeling that the Duracell batteries will last longer in the products I have chosen. Materials 1.8 pack of AA Duracell batteries 2.8 pack of AA Energizer batteries 3.A hand held battery operated fan 4.Single cell flashlight 5.Flip over toy dog 6.Voltmeter tester Procedure 1.Take check the voltage in each of …showed first 75 words of 489 total…

…showed last 75 words of 489 total…in, Duracell had a little more voltage. I also learned that if you take the batteries out and them rest they will gain back a little bit of voltage. If you are looking to buy batteries choose Duracell. Materials 1.8 pack of AA Duracell batteries 2.8 pack of AA Energizer batteries 3.8 pack of AA Toshiba batteries 4.A hand held battery operated fan can get it from Wal Mart or K-Mart 5.Single cell flashlight 6.Flip over toy dog