MacBook Pro 15 Battery Life

creeman

macrumors 6502
Original poster
Oct 15, 2007
279
0
So, my laptop is at 90% power, and says I only have 3 hours and 50 minutes left. I have brightness all the way down, and Im using integrated graphics. Apple claims that I would get 8-9 hours on a single charge, which I am not getting. What gives?
 

aeboi

macrumors 65816
Sep 20, 2009
1,094
0
Bay Area
So, my laptop is at 90% power, and says I only have 3 hours and 50 minutes left. I have brightness all the way down, and Im using integrated graphics. Apple claims that I would get 8-9 hours on a single charge, which I am not getting. What gives?
what do you have open? flash is a usual culprit
 
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Corndog5595

macrumors 65816
Jul 16, 2010
1,112
0
running package files (installers) usually takes advantage of all available resources.
 
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creeman

macrumors 6502
Original poster
Oct 15, 2007
279
0
Under Activity Monitor, it shows kernel_task as using around 15%, thats the highest.
 
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alicantino

macrumors newbie
Jul 27, 2010
3
0
Alicante, Spain
your not alone, I have the same problem, I use Safari and Spotify most of the time and I never get more than 4 hours, I have calibrated battery and only has 53 cycles :(
 
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creeman

macrumors 6502
Original poster
Oct 15, 2007
279
0
What is the health % of your battery?
98%. The installer finished, and now the laptop is at 37% battery, and it says it has 2:39 left with brightness at about half, so that seems about right I think.
 
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