Macbook Pro not waking up if battery is low (~15%)

My new generation Macbook Pro 13" is not waking after re-opening the closed lid if the battery icon indicates low by red color (I guess it is about 15%) before putting it to sleep.
I mean, if I close lid when the battery icon is red, it does not automatically wakes up from sleep state on re-opening the lid and -interestingly- it neither wakes up by pressing the power button.
It only wakes up from sleeping if I plug to power adapter. That means I am not able to use 15% of my battery if I need to put it sleep when it is low.
Any ideas?

Why nobody is helping. By the way I have observed that going to sleep after closing to lid usually takes 20+ seconds. My mbp is pretty new but has problems. :rage:

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MacBook Pro Not Waking Up From Closed Clamshell Sleep

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Unfortunately, I think the logic board is shot on my MBP, and heres why. My lower RAM Slot only reads my ram some of the time, whereas the top slot never has a problem. If I have to restart my Mac because of the above sleeping issue, it only has 2GB of ram, but if I take the sticks out and swap them, it briefly runs with 4GB until the clamshell gets shut again, and its the same slot thats not reading no matter what configuration of RAM I'm using. Ive swapped RAM sticks with multiple people with no luck. If Just take the bottom stick out, everything is fine, but If its only the bottom stick, it only starts up about half the time. If it dosent boot, I get the "Beeps of Death" at startup. As i said earlier, it's probably not the RAM itself thats causing the problem, somethings screwy in my logic board thats preventing it from reading RAM even though it's in the slot. And yes, I made sure the ram was in it's slot all the way.
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MacBook Pro not waking form sleep (sometimes)

My Macbook Pro is not waking from sleep (sometimes). To be very specific; the only time this happens is when it goes to sleep automatically, with the lid open, while plugged into the magsafe power cord. When I hit the space bar to wake it, the keyboard lights come on but the screen remains black. I do not have any problems with waking from sleep if I close the lid to force sleep (while plugged in). I also do not have any problems at all, if the computer goes to sleep while running on battery power. (I have had this MBP for about 18 months, the first year I had no issues at all. The problem started shortly after Lion was installed. (I also have a iMac with all the same software, almost identical set up, purchased at the same time as my MBP but have never had any sleep problems with the iMac, none even since Lion install.)
We do not have an Apple Store near us, but I have had the MBP in for service 3 seperate time to our local authorized Apple service/dealer. It is tricky to diagnose, because the problem does not happen every time. On average it won't wake from sleep 1 out of 3 times. Each time the service techs were able to re-create the problem but could not come up with a cause or solution, their only advice was to re-install Lion.
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I had this problem with my MacBook Pro for a long time, and fixed it by changing the sleep mode. Here's how:
Open Terminal
Type the following:
     pmset -g | grep hibernatemode
It should say something like:
     hibernatemode 3
Here's an explanation of the different types of hibernate modes:
0 - Old style sleep mode, with RAM powered on while sleeping, safe sleep disabled, and super-fast wake.
1 - Hibernation mode, with RAM contents written to disk, system totally shut down while “sleeping,” and slower wake up, due to reading the contents of RAM off the hard drive.
3 - The default mode on machines introduced since about fall 2005. RAM is powered on while sleeping, but RAM contents are also written to disk before sleeping. In the event of total power loss, the system enters hibernation mode automatically.
5 - This is the same as mode 1, but it’s for those using secure virtual memory (in System Preferences -> Security).
7 - This is the same as mode 3, but it’s for those using secure virtual memory.
To change your sleep mode, use the following command:
     sudo pmset -a hibernatemode 0
(replace 0 with whatever hibernate mode you desire)
For my MacBook Pro, I changed it to 0, and it works great. It's super fast to wake and sleep, which is a plus. The only downside of hibernatemode 0 is that if your battery runs out your computer doesn't hibernate - it shuts off. This doesn't matter, though, because with Lion everything is autosaved, so really hibernate 0 is all plusses.

Macbook pro not waking from sleep

HELP! My macbook pro (2010) is not consistently waking from sleep. I will put it on sleep, then when I open the screen, it will not wake up. I have to press the power button to completely turn it off, then press it again to wake it up. An error message shows saying that it had not been properly shut down. Any ideas on how to correct this problem?

Hello alicool,
The article linked below provides some useful suggestions that can help resolve issues with your Mac waking.
OS X: When your Mac doesn't sleep or wake
http://support.apple.com/kb/TS5357
Cheers,
Allen

Macbook pro not charging: logic board, battery or magsafe?

My macbook pro (13" late 2011) has been charging fine until today. When i plug in the magsafe power adapter (i did clean it and the port) it only lights up dimly and green. The battery also says "Not Charging" and the computer entirely feeds on the power adapter. I've tried SMC and PRAM reset, and changing the duckhead adapter to the ones included when you buy the macbook but neither worked. I did the Apple Hardware Test and it said everything is normal. I tried charging it at 10% but it wasn't charging so i disconnected it and waited for the warning on 3% but it still didn't charge and the battery % isn't going down or up either when plugged. I also had the fan replaced a month ago but only got it back a few days ago.
Battery Information:
Model Information:
       Serial Number:          W***********B
       Manufacturer:           SMP
       Device Name:           bq20z451
       Pack Lot Code:         0
       PCB Lot Code:          0
       Firmware Version:     201
       Hardware Revision:   000a
       Cell Revision:           158
Charge Information:
       Charge Remaining (mAh):          145
       Fully Charged:                           No
       Charging:                                  No
       Full Charge Capacity (mAh):       5205
Health Information:
       Cycle Count:          560
       Condition:          Normal
Battery Installed:          Yes
Amperage (mA):          0
Voltage (mV):          10972
System Power Settings:
AC Power:
       System Sleep Timer (Minutes):                 10
       Disk Sleep Timer (Minutes):                      10
       Display Sleep Timer (Minutes):                  10
       Wake on AC Change:                                No
       Wake on Clamshell Open:                         Yes
       Wake on LAN:                                          Yes
       Current Power Source:                              Yes
       Display Sleep Uses Dim:                           Yes
       PrioritizeNetworkReachabilityOverSleep:     0
       RestartAfterKernelPanic:                           157680000
       Standby Delay:                                         4200
       Standby Enabled:                                      0
Battery Power:
       System Sleep Timer (Minutes):          5
       Disk Sleep Timer (Minutes):              10
       Display Sleep Timer (Minutes):          2
       Wake on AC Change:                       No
       Wake on Clamshell Open:                Yes
       Display Sleep Uses Dim:                 Yes
       Reduce Brightness:                         Yes
       RestartAfterKernelPanic:                 157680000
       Standby Delay:                               4200
       Standby Enabled:                            0
Hardware Configuration:
UPS Installed:          No
AC Charger Information:
Connected:               Yes
ID:                           0x0000
Wattage (W):            0
Revision:                  0x0000
Family:                     0x0000
Serial Number:          0x00000000
Charging:                  No

If you can get another charger to try, your question then can be definitively answered. I suspect that the charger is faulty based on the absence of charger information on your printout. All other information looks normal.
An Apple store genius bar appointment would resolve the issue.
Ciao.

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The principle is this: whenever your MBP is involved in an operation that keeps it awake, your MBP will keep this command going - until you disable the process. For me, it's the application Printopia; if I have sharing disabled - which Printopia doesn't want me to do - it keeps my machine awake, until I enable sharing.
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Message was edited by: Alex Bernstein

Alex, do you have your preferences set to require a password after sleep or screensaver? Sometimes I have had issues with this dialog window not popping up. Also does the status light on the MBP glow constantly or fade in and out when you lift the lid up? If it is lit constantly and nothing is displayed that means the computer is on...what I do is just close the lid again and then wait for the light to fade in/out and re open, then it usually works.

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The new MBP started not waking up from sleep. The keyboard would like up and the light in the front would indicate that it has started, but then it doesn't show anything on the screen.
Ultimately, I decided, i'll just do a clean re-install of OS 10.8 because maybe something went wrong in the migration. Now, with a fresh install when i wake it from sleep it seems to open as if it ran out of power and is doing a restore power up. The screen opens at half opacity and I get some progress dots and its back quickly. But it's still strange. The only thing installed on the computer at all is adobe production suite.
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so now I have TWO computers having almost the same issues, and one of them has a fresh install. So what could the problem be? totally diffferent hardware. Does 10.8 not like SSD's in 17" MBP's?
any tips would be apreciated.

One last detail, connectivity through my iPhone's hotspot works completely fine. No idea if that is related / helpful in any way.

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It's getting low but not that low,
Try this:
Note: MacBook Pro (Early 2009) and later, all models of MacBook Air, and MacBook (Late 2009).
Shut down the computer.
Plug in the MagSafe power adapter to a power source, connecting it to the Mac if its not already connected.
On the built-in keyboard, press the (left side) Shift-Control-Option keys and the power button at the same time.
Release all the keys and the power button at the same time.
Press the power button to turn on the computer.
Note: The LED on the MagSafe power adapter may change states or temporarily turn off when you reset the SM

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Here are the Apple costs for a replacement battery:
iFixit sells Apple batteries, but the last time I looked, they were out of stock.
Recently on another post, it showed Apple batteries available through Amazon at favorable prices that appeared to be OEM quality. I suspect that these are gray market batteries but they may very well be satisfactory. I still say 'Caveat Emptor'.
If you do choose to go the third party route, you will need a #0 Triwing driver to install the battery.
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I've connected an external display to my MBP. I've been able to work out how to mirror the two.
But when I try to have the lid closed and then wake up the laptop with my wireless keyboard, the external monitor displays the desktop for a moment then also goes to sleep.
No matter how much I punch the keyboard nothing happens.
By the way, when I am running in closed lid mode I have disabled mirror.

Think I found a solution.
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http://support.apple.com/kb/HT1411
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http://blogs.ittoolbox.com/security/investigator/archives/007864.asp
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With Windows XP machines the CPU has three basic speed modes (with many other power saving features)
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My MacBook Pro keeps waking itself from sleep for no reason.
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Message was edited by: craigie b

Hi craigie, and welcome to Apple Discussions.
In addition to Michael's ideas, there have been some weird sleep issues caused by a System Preference, and although your issue doesn't sound the same, if you run on AirPort (and not Ethernet) I'd check it out anyway:
-Open System Preferences.
-Open Network.
-Click on Built-in Ethernet (note what it says underneath it: Not Connected or Inactive; Inactive is what seems to have caused the majority of other issues).
-Click the - button at the bottom of the window to delete the original Ethernet pref.
-Click Apply.
-Click the + button.
-For Interface, select Ethernet.
-For Service Name, enter Built-in Ethernet.
-Click on Create.
-Make sure your Location is set to Automatic or AirPort (or whatever you normally have it set to).
-Click on Apply and close Preferences.

Macbook Pro not waking up if battery is low (~15%)

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