[Samuel_Michon]

> My [MacBook] Air usually lasts about 4 or 5 hours with full brightness and the wifi turned on

What are you doing that depletes the battery so fast? I have a 2012 13" MacBook Air which lasts 8-9 hours. My typical use is: display set to 50% brightness, WiFi turned on, mostly using Adobe CC apps.

[dagw]

The 13" has a lot better battery life than the 11" and the 2012 has a lot better battery than the 2011. I get 3-4 hours out of my 11" 2011 MBA.

[jrobertfox]

I think those numbers are full brightness. Maybe 2012 is better, this was mid 2011.

[Samuel_Michon]

Ah yes, that does matter. My 2012 MBA has a better battery life than the 2011 MBA, and this year’s MBAs in turn have way better battery life than my MBA. It also matters a great deal whether you have the 11" or the 13" model (which has way better battery life).

http://www.everymac.com/systems/apple/macbook-air/macbook-ai...