Yes, I understand what you are all saying. I am an Electrical Engineer and should understand how a battery in a device functions.

However, I have a problem with the comment made on temperature. I do not think that temperature would be a contributing factor for battery drain in this case unless people use their television sets and remote controls outdoors. Most people use their remote controls inside at room temperature.

I am not conducting a scientific or engineering study on the performance of batteries. I am just curious about what the average life for a set of AA batteries are for the MX-450.

I am sure that you realize that some remote controls drain batteries much faster than others. With enough data on the MX-450 average battery life, one should actually see a trend and determine if the device is a battery hog or not.