Retina Macbook Pro Battery Life Inquiry

http://www.apple.com/batteries/notebooks.html

Batteries get used up at different rates at different times depending on what you are doing and WHAT the computer is doing. The computer does not sit idle all the time. It does different stuff from time to time no matter what you are doing on it.

I'd say your battery is completely normal If not above average. 6-9 hours web browsing, 5 hours if watching movies. And you think your battery may be defective. Yeah defective in a Good Way.

Retirer wrote:

Not helpful, was looking for a specific answer

There is no specific answer. Every battery is different. Every computer is different. Every user is different. Every way each person uses their computer is different.

Variables such as surrounding temperature can affect battery life as well. For instance if you are in a particularly warm or particularly cold environment, it could affect not only the energy dissipation of the battery but also the need for the fan. Nonetheless, what you are describing sounds like it is operating within the expected range for the device.

Try this:

http://www.cultofmac.com/178092/this-simple-terminal-command-could-more-than-dou ble-your-retina-macbook-pros-battery-life/