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macrumors regular
Original poster
Jan 22, 2010
I plan to get Haswell one and I was wondering if you could change from 60Hz to 40/30Hz and get more battery? My current HP laptot runs standartly at 40Hz and there's like 30 min battery from 40-60.


Moderator emeritus
May 3, 2009
OSX doesn't have any way for you as the user to change the refresh rate. It is, what it is.

I don't think you'll increase the battery life so much that it would be worth it, but that's just my opinion
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