Mac Forums - View Single Post - In the real world, how is the battery life on the MBP 13?

poopieboy · poopieboy #7 (**permalink**)

09-29-2009, 03:27 AM

Quote:

Originally Posted by alexsd123

I am at 100% battery life right now.
I am at half brightness and on the forums.

With one brightness of backlight, I get 8:04

With full brightness of the backlight, I get 7:33

So, the keyboard being lit up fully will drain the battery around 20-30 minutes compared to it being off / very dim.

You really don't need full brightness on the keyboard, so this shouldn't be a problem.

When I put my brightness all the way down and disable bluetooth and airport, I get 10 hours of battery life. =D

Those time readings you get on the menu bar aren't really all that accurate, so I'm hoping you're saying you get 7:33 because you actually timed it.

When I take my 13" MBP to school, I use firefox, ichat and either MS Word or MS Excel or both. I usually run anywhere from 2 to 4 applications at a time. My average battery life with the screen brightness at about 65% and the keyboard lighting at 100% is usually between 4.5 to 5.5 hours.

I have never gotten a battery life better than this, as I don't really just use it to browse the internet in 1 window for hours on end. Its usually multiple tabs open in Firefox. I'm generally satisfied with the battery life.