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coelacanth

macrumors 6502
Original poster
Jul 19, 2004
434
1
This new MBA won't run as hot as the Rev A MBA, but wondering if using the CoolBook would improve the battery life a bit.

It gave me about 0.5 to 1 hour of extra battery life on the Rev A MBA.

Anyone tried?
 

johannnn

macrumors 68020
Nov 20, 2009
2,315
2,603
Sweden
Im running a beta of CoolBook compatible with the new 11" MBA. Its getting a little cooler of course, but I havnt done any battery test with and without it. But a little cooler and a little longer battery life is absolutely worth $10 for a computer you will use for a long time.
 

Jsimon9633

macrumors regular
Jun 26, 2007
209
0
yeah where did you get the beta? i have a 13.3 new mba and wondering if i can use it


maybe to limit it going to 2.13ghz unless i really need it? might save me battery.
 

mrmister

Suspended
Dec 19, 2008
655
774
I'm using CoolBook on my 11 incher, and it definitely increases battery life--I was able to undervolt all the way to the bottom of the range even at the highest frequency, and it works wonderfully. I need to do more research, but so far it has been stable, cool and much more battery efficient. Highly recommended.
 

magbarn

macrumors 68040
Oct 25, 2008
3,028
2,394
Runs great on my MBA 13 2.13! Able to run at lowest possible voltage even at 2.13 ghz. Now I can watch Hulu without the fan becoming very audible
 

Appleind

macrumors regular
Nov 12, 2010
197
0
Im running a beta of CoolBook compatible with the new 11" MBA. Its getting a little cooler of course, but I havnt done any battery test with and without it. But a little cooler and a little longer battery life is absolutely worth $10 for a computer you will use for a long time.

Just what I need. +1 on the where did you get the beta question??
 

mrmister

Suspended
Dec 19, 2008
655
774
I got the beta by writing to the author...but that was before his most recent update. I believe it is now, as of 2.20, compatible with the new MBA out of the box.
 

MacRuler

macrumors 6502
Apr 16, 2010
287
0
why is the "b/2" box unable to be clicked? is this supposed to be like this? or should we be able to click it? thanks because i can not click mine thank you.
 

mrmister

Suspended
Dec 19, 2008
655
774
That's a feature where your bus speed is cut in half as a power-saving option. It's only enabled when it is available for your particular processor.
 

MacRuler

macrumors 6502
Apr 16, 2010
287
0
well i have the macbook 11 inch, and i don't know why it isn't available for my machine? thank you
 

mrmister

Suspended
Dec 19, 2008
655
774
Because it isn't enabled for your processor. That feature is only for certain steppings of the C2D processor, as I told you in my last response.
 

mrmister

Suspended
Dec 19, 2008
655
774
Yes--I'm getting about 90 minutes more on a full charge. I haven't done exhaustive work yet, but that's pretty accurate.
 

MacRuler

macrumors 6502
Apr 16, 2010
287
0
i get like 7-8 hours with coolbook installed, brightness down, itunes, safari, microsoft word 2011 and mail open. with clicktoflash installed. and about 30 minutes to and hour of youtube.
 

Maven1975

macrumors 65816
Aug 24, 2008
1,014
275
I want coolbook for the exact opposite. I like to run mameOSX, but the throttling in OSX is way to extreme for the emu to run efficiently. I will be purchasing yet another license and trying it on my 11 1.6. Hope it helps.
 

MacRuler

macrumors 6502
Apr 16, 2010
287
0
the best 10 dollars you will spend on the macbook air. i mean if you care about battery life or heat. it reduces heat to the touch and improves battery life by 1:30 to 2:00 hours...by undervolting the cpu.
 

fs454

macrumors 68000
Dec 7, 2007
1,986
1,875
Los Angeles / Boston
Really helped me as well. I bought the latest version for my ultimate 11" air and it can run at the lowest possible voltage at all clockspeeds (I think it's 0.875v IIRC). I haven't done any formal tests but it definitely feels like it lasts a significant amount of time longer than before, like almost a full hour.
 
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