MBP early 2011 battery life

I have the early 2011 release of the 17" MBP (8gig ram, 2.2ghz quad i7, 500 gig harddrive) and it seems like the battery life has just been cut inhalf. It lasts me about 3 and a half hours from just general use. Is my battery faulty? Really appriciate any feed back

That battery looks pretty good, capacity is really strong for so many charge cycles, but the voltage looks low, would expect it to be in the 11.5 to 12.5 volt range and you are showing 11.27 volts. A little low but not critical.
How have you been handling that battery with respect to discharge/charge?  While Apple has a lot of material talking about periodic deep discharge to shutdown and charge as a means of calibrating the battery, in reality that does not calibrate the battery itself.  That only serves to calibrate the charge reporting circuitry built in to Lithium-technology batteries.  In fact, the Battery University, an independent group testing batteries, has shown that repeated deep discharge behavior significantly shortens Lithium battery lifetimes.  The optimum balance of use (discharge) and line-connection seems to be around 50% discharge before charge.  Deeper reduces cycle life very fast, lower discharge makes for a very high cycle life but why buy a portable?
Anyway, just some thoughts.  Use of high intensity applications, including other operating systems, looks like it is degrading the charge time but the battery itself looks healthy.
Just keep using it, perhaps try not discharging below 50% for a while and see how it behaves for your.

Similar Messages

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    I was wondering if my battery faulty or something? or is it just me?
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    If you have AppleCare, they will mail you the battery.
    If you do not have AppleCare, call Customer Relations 1-800-767-2775. See what they can do for you. CS will determine if your model MBP qualifies for a free battery.
    An Apple Store is not the only place to go. There may be an AASP closer. See KB Article: http://docs.info.apple.com/article.html?artnum=304398 How to find your nearest Apple Authorized Service Provider (AASP)
    Another thing you can do is to go to System Profiler. Copy/Paste the Power info here. *Do not post any serial numbers.*

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    Why don't you look through this to insure you did everything correctly:
    http://www.ifixit.com/Guide/Installing+MacBook+Pro+13-Inch+Unibody+Early+2011+Ba ttery+Replacement/5116/1
    Also, where did you get this battery?

  • After EFI Firmware update 2.3, MBP Early 2011 will not boot. During restart it all went wrong please help!

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  • How much noise should the hard drive make on a MBP early 2011?

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    Backup your data off the machine, if the hard drive dies under 1 year or three years with Applecare, then go get a new one. else you can replace it yourself with a better one and not void your warranty if you don't break anything doing so. Add more RAM while your at it.
    http://eshop.macsales.com/installvideos/
    As you know Mac's are made by hand by young Chinese women working 12 hour shifts performing the same function every 7 seconds for only $1.20 a hour. They live 7 to a box room and have to pay 70¢ a meal.
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  • Downloading ML over 80 min's......how long will this go on???  MBP early 2011 running 10.7.3

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    Your issue downloading Mountain Lion appears to have been answered HERE. I'm betting you are both running Antivirus.

  • MBP 15'' 2011 battery lasts only 3 hours!

    Hi
    I bought MBP 2011 15 inch last week and received it on Monday.
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    Model Name:          MacBook Pro
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      Processor Speed:          2.2 GHz
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      Total Number of Cores:          4
      L2 Cache (per Core):          256 KB
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    OMG turning off the Bluetooth just gave me like extra 3 hours of battey time! (6 hrs total)
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    You can most certainly try running the bundled app installer off the 10.6 machine specific disks, however I think it's going to barf on you.
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  • MBP 15" Retina Battery Life Problems

    Hello all!
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    puzzledsean wrote:
    I'm not doing anything intensive on my computer either; just simple web browsing and chatting on Skype.
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  • Garbled display at startup when connecting to External Monitor - MBP Early 2011.

    Hi,
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    Welcome!!
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  • Macbook pro 15" i7 2.2 early 2011 battery health

    Dear All
    My two months old Mackbook pro 15" i7 2.2 early 2011 start showing battery health 96% instead of 100% earlier at 17 cycle with full charged,
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    Yesterday I did calibrate the battery and today after all night charging (12hs)  it shown 97% only 18 cycle and 99% only charge. .
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    Kindly advise.

    yes it is normal.  Read this: http://support.apple.com/kb/TS1909.  Also, your battery does not need to be calibrated, read this: http://support.apple.com/kb/HT1490

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