My Mac Pro shuts down prematurely.  Seems the battery drains almost instantaneously, once it hits about 50% or less.

My Mac Book Pro shuts down prematurely, seemingly doing a rapid battery drain when it reaches < 45%.  I can only work, while on battery for approximately 15 minutes even when starting out fully charged.  Although, a full charge now only reached 95% - 97%.  Can't recall if it ever reached 100.  Looks like the battery has about 240 cycles on it.  I thought at first it was over heating, but now not so sure.  Heat may be normal levels.  Does this mean it is time for a new battery?

Apple menu > About this Mac > more information
scroll down to Power and click
look for Battery Health Information, Cycle count and condition.
Also
Reset your SMC and NVRAM/PRAM
http://support.apple.com/kb/HT1379
http://support.apple.com/kb/ht3964

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    My MAC Pro shuts down when the battery still has 52 minutes life without any warning. Does anyone have this problem? BTW, it is less than one year old.

    You must have a MacBookPro, right? MacPro's are big desktop models.
    Try the MacBookPro battery forum or their Usage forum.
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    regards
    < Personal Information Edited By Host >

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  • My brand new Mac Pro shuts down for no reason

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    Take it back to Apple and ask them to fix it.
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    adetoye50 wrote:
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    FYI, this is a user to user support forum.  You are NOT addressing Apple here.
    Honestly, I doubt anyone is really going to take the time to read the novel you have written.

  • My IPAD 4 is not working properly. it will blink and then shut down even when the battery is charged. i have done several reset on the iad. what do i do , i need help

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  • Power Supply Temperatures Running Hot! Mac Pro shuts down.

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    Also, the Mac Pro is plugged into a small UPS.
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  • Mac Pro shuts down instead of sleeps.

    I run a  2008 Mac with OSX10.5.8, with 2GB memory and 2x2.8Ghz Quad core processors
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    Hopefully post stll being checked. I have just started to have the same issue with my Mac Pro 2008. It seems to be shutting down and starting fine but the last few times I put it to Sleep, it will eventully shut down on its own. Restarts fine with no message of on screen of improper shut down. I have: reset SMC, zapped Pram, checked Console. Will run Disk Utility this afternoon.
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  • My MacBook pro shuts down randomly --- seems associated with firefox and/or mail

    My MacBook pro shuts down randomly. Seems to be associated with firefox or mail

    SWE70 wrote:
    It is a brand new Macbook pro 15 retina (late 2013)
    You are still under warranty.  Call Apple Care. Make sure you get a case number as all repairs have an additional 90 days of warranty. 
    #1 - You have 14 days from the date of purchase to return your computer with no questions asked.
    #2 - You have 90 days of FREE phone tech support.
    #3 - You have the standard one year Apple warranty.
    #4 - If you've purchased an AppleCare Protection Plan, your warranty last for 3 years.   You can obtain AppleCare anytime up to the first year of the purchase of your computer.
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  • Why mac pro shuts down when idle, even when charging ipad?

    why mac pro shuts off when idle, even while charging ipad?

    Thanks for replying. I have a macbook Pro. In my energy saver, I ticked the following: put hard disk to sleep when possible, wake for network access and automatically reduce brightness before display goes to sleep. My boyfriend has the same settings but I can charge my ipad with no interruption on his macbook Pro and it doesn't shuts off when idle. Thanks for your help

  • New Mac Pro shuts down when I put it to sleep?

    I go to click my mouse of keyboard and nothing happens. I click the power button the back lights up and turns on as if it were off, what gives? This is brand new 64gb ram, 12 core, didn't even do a migration so it's all new stuff on here.

    Hello Chief Sneed,
    It sounds like your computer is going to sleep but when you later go to wake it up it will not turn on unless you press the power button and it looks to have shutdown at some point. I recommend checking to see if the computer is scheduled to shutdown at a certain time with the following article:
    OS X Mavericks: Schedule your Mac to shut down or go to sleep automatically
    http://support.apple.com/kb/PH13914
    Schedule your Mac to turn on, turn off, go to sleep, or wake from sleep at specified times. You might do this if you want to be sure your Mac turns off when you aren’t working and turns on before you come to work.
    Choose Apple menu > System Preferences, then click Energy Saver.
    Click Schedule, then select the options you want to use.
    To schedule a startup or wake time for your Mac, select the “Start up or wake” checkbox. Choose a day or group of days from the pop-up menu, then enter a time.
    To schedule a shutdown, sleep, or restart time for your Mac, select the bottom checkbox and choose the appropriate option from the pop-up menu. Choose a day or group of days from the pop-up menu, then enter a time.
    Thank you for using Apple Support Communities.
    Take care,
    Sterling

  • The first generation mac pro shuts down after start up suddenly

    I have had mac pro since 2006 and have used it so many times without any problems starting up/booting successfully. Recently it was not booting well and i done pram clearance and worked for a while. Once after going into the desktop the screen just froze and i could hear a repeatitive clicking sound from the computer. I was able to shut down and did not use the computer for some time. i have tried to switch it on today and it goes through the normal dong sound and apple logo appears plus a grey bar underneath which fills to a bit and then there is a change in sound in the computer as if something coming to off and then there is the same repeated sound of faint clicking and the computer shuts down. can please anyone help me how to sort the problem out?

    Raj Karia wrote:
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  • 2008 mac pro shuts down over night with os 10.9.5

    Updated clean install of OS 10.9.5 to new HDD on my 2008 Mac Pro running 10.6.8 via the app store:  The Mac seems to shut down over night.  Not overheating.   Energy Saver, Computer sleep set to Never, and Display sleep set to Never.  Screen saver set to never.   Very odd.  will see if it does it 3rd night in a row.
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    Open the Console app and look for log entries right before your had to boot up the Mac. Post them here.

  • My Mac Pro Shuts down during sleep

    Well I have a variation on what others are experiencing with their machine.
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    2- I let it sleep at least a few minutes…
    3- when I press the space bar, the following happens:
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    - the fans kick in just as when you start it from shut down with power button
    - the startup screen appears and everything after this point is the same as a cold boot.
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    4x2 GB RAM from OWC (667 Mhz)
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    OS 10.5.2 ans all updates applied.
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    Ok so my g5 died...still complaining. Should have had apple replace it while still under apple care.
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