Disconnecting when running off battery

Everytime i remove my power cord from my MacBook Pro, i have trouble keeping ichat connected, my ineternet it fine, everything else stays connected, ichat is the only problem. It will usually stay connected for only 10 minutes or so, and when it disconnects it doesn't usually tell me at first, my friends will tell me i disconnected about 3 minutes before it actually tells me. I also tryed changing my power settings, to never putting the drivers to sleep and such, but that didn't work. Any help would be appreciated, thanks.

I have the same problem! as long as i am connected to AC power i chat stays connected no problem. If i run off the battery I continualy get disconnected. My disconnects work the same way as yours. the person i am chatting with sees me disconnect right awat but on my side it looks like i am still connected for several minutes. it even seems to accept my outgoing messages without telling me i am discconected.
Its rather annoying. Everytime there is a pause in the chat i find myself asking "am i disconnected?"

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XP slows down when running on battery

Hi, I've just bought a brand new macbook and upgraded it with 1GB of RAM. However, after I installed bootcamp and loaded xp, I found out that the macbook begins to lag when I unplug the magsafe. Is this normal?
This issue is most noticeable when I play audio on the macbook. Whenever I open any audio file and repeatedly press the apple (windows) key next to the space par, the audio jitters pauses every half a second. This isn't limited to that, it lags whenever I open a new window or folder. It only does that when running off battery power.
I'm a new mac user and I was wondering if any of you had the same problems. I know my parents' PC laptops don't have the same problem when they unplug their power. Please respond, or at least let me know if I'm the only one with this issue.
Macbook Mac OS X (10.4.7)
Mac OS X (10.4.7)
Windows XP Pro

Finally someone raised the question I asked numerous times and couldn't get anyone to try it out on their macbooks.
Yes - Windows XP will lagg when on battery power only. I've noticed it few weeks ago. Strangely - OSX won't lagg when on battery power.
I got one answer on my previous post that made a lot of sense - The person told me that it's probably just a glitch in the BOOTCAMP beta - since its only a trial version for now - until its fully upgraded with Leopard.
It makes a sence now that I'm not the only one with the problem. Its probably BOOTCAMP.
I guess we will have to wait for Leopard with the upgraded, fully supported version of BOOTCAMP.
Glad to hear that I'm not the only one - I can be sure now that its not a faulty battery or logic board.
For now use the magsafe when on Windows side - until you get leopard or until new version of Bootcamp is released.
Here's the link to my original post http://discussions.apple.com/message.jspa?messageID=4445918#4445918

Airport crashes computer running off battery

This issue has been moved from "Wireless Internet stops working"
Posts: 11
Registered: May 25, 2007
Re: Wireless Internet stops working
Posted: Jun 22, 2007 7:26 AM in response to: squirrelofsnooze Reply Email
I'm having similar issue after upgrade to 10.4.10. My mbp is practically new, only a few weeks old. Originally thought it was Safari and flash problem but it also happens in Firefox. Went to genius bar, in log they saw problem with airport. they said it was problem at my home wireless since computer seemed to work ok in store, though we did not have it connected to internet very long in the store and store is open net, not closed.
when i got home and started browsing, my computer crashed twice, in both Safari and Firefox. It would have connection for a few minutes and then crash. (screen slowly turning gray and then prompt to restart). I ran internet connect diagnostic and it said i was not connected even though i had strong signal on icon. i could see internet connect icon in dock switching from ethernet to wireless (no ethernet cable connected). I did the diagnostic wizard thing and got a prompt that my WEP was not in the keychain and if i would always allow it to connect for diagnostic. I entered always and entered wep for keychain. I have not had a crash since but admittedly I have not had time to really put it to a test. Also, I have been helping it along by launching internet connect along with whatever browser in an effort to wake up both the airport card and the wireless router. I don't think you should have to launch internet connect to start or keep a connection going, but it seems to be working for me so far.
I'm open to more suggestions myself since i'm not so sure the issue is solved yet.
jim
MPB c2d, 2.33/2g Mac OS X (10.4.10)
jawood
Posts: 1
From: CA
Registered: Jun 22, 2007
Re: Wireless Internet stops working
Posted: Jun 22, 2007 8:43 AM in response to: jmitro Reply Email
My MBP has been running like a champ since I bought it in March. However, I started having the same exact problem after I updated yesterday.
I find that if I am on battery power I can only maintain a wireless connection for 2-5 minutes. AirPort shows that I am connected, but I cannot access webpages or email. If I turn off AirPort and turn it back on sometimes I get reconnected to the internet. The other times my computer crashes and I get the slow gray screen that tells me to reboot.
Strangely, if I stay plugged in to power I have none of these problems. I would therefore assume that yesterday's update somehow effected the power settings for my wireless card. However, all of the settings I can find look good to me. I am a Mac "newbie." Is there any way to go back to remove an update or go back to a previous system set up? I live about an hour from the nearest Apple store, so I am hoping to avoid a trip to the Genius Bar. Suggestions?
Joe
MacBookPro Mac OS X (10.4.10)
jmitro
Posts: 11
Registered: May 25, 2007
Re: Wireless Internet stops working
Posted: Jun 22, 2007 8:54 AM in response to: jawood Reply Email
joe,
thanks for the heads up on the power supply. that could have had more to do with my own solution than the wep and the launching of internet connect. my battery was running low and i did plug it in about the same time i was working on the connection. when i get a chance, i'll see if i can duplicate what you've experienced re power supply. we may have the same issue and maybe we'll be able to narrow it down. i'm close to an apple store and it's easy for me to drop in after work on the way home. i may be able to save you a trip. i'll report back later next week as i'll be out of town over the weekend.
jim
MPB C2D, 2.33/2g Mac OS X (10.4.10)
Joe,
I have duplicated what you reported about computer working fine plugged in but crashes when running off battery. I will try to get in to the Apple store on Monday or Tuesday. In meantime I guess we need to stay plugged in.
jim
17 MBP C2D 2.33Ghz 2G Mac OS X (10.4.10)

I drove over to my nearest Apple store today and naturally the problem wouldn't appear while I was in the store. The Genius took a look at my error logs and could see the problem I was having, but he didn't really have a fix for me. He did suggest rebooting from the CDs that came with my computer to reinstall the operating system if I kept having kernal panics.
Of course, when I got home the problem reappeared when I was running on battery power...my computer also had another kernal panic. Part of me started to wonder if it is a problem with my wireless router. However, I also have a MacBook still running 10.4.9 and it isn't having any problems nor is my PC laptop.
I finally gave up and plugged in the power supply. Since no one at the Apple store seems to be able to fix my problem I am hoping the "software update gods" find the error with this week's update and release a fix. Otherwise, I am going to have to dig out those CDs. How hard is it to reinstall the operating system? It sounds daunting.

HP 250 Laptop - When running on battery turns off without warning and won't restart

One month after warranty expires this laptop presents with this problem. It shuts down without warning when running on battery, although the battery has plenty of charge. Following shutdown it won't restart on battery. Plugging in power and restarting it displays a message that the battery is cactus before continuing to boot. When trying to run F2 on startup battery check it simply doesn't progress past the initial screen (1%) and [esc] key does nothing. Need to power off. However, REMOVE the battery, boot the computer, shutdown, REINSTALL the battery, turn on and everything is OK - most recent example showing battery with 95% remaining. Continues to work for a few days until it decides to fail again. Suspect the battery is not at fault here, and in any case can't get a replacement (thanks HP for providing equipment with rare and unusual parts) - one supplier has only two on order which will be delivered some time in September!! Usual third party providers don't provide a replacement for this battery. Have seen a lot of references to this sort of mystery "battery failure - shutdown with warning" but no concrete solution. Have tried different power setting including never hibernate, but these seem unrelated. Open to useful suggestions at this point.

One month after warranty expires this laptop presents with this problem. It shuts down without warning when running on battery, although the battery has plenty of charge. Following shutdown it won't restart on battery. Plugging in power and restarting it displays a message that the battery is cactus before continuing to boot. When trying to run F2 on startup battery check it simply doesn't progress past the initial screen (1%) and [esc] key does nothing. Need to power off. However, REMOVE the battery, boot the computer, shutdown, REINSTALL the battery, turn on and everything is OK - most recent example showing battery with 95% remaining. Continues to work for a few days until it decides to fail again. Suspect the battery is not at fault here, and in any case can't get a replacement (thanks HP for providing equipment with rare and unusual parts) - one supplier has only two on order which will be delivered some time in September!! Usual third party providers don't provide a replacement for this battery. Have seen a lot of references to this sort of mystery "battery failure - shutdown with warning" but no concrete solution. Have tried different power setting including never hibernate, but these seem unrelated. Open to useful suggestions at this point.

MacBook Pro late 2011 not switching to ATI graphics when running off mains power.

Hi there.
My MacBook Pro late 2011 doesn't appear to be switching to ATI graphics when running off mains power. It always seems to stay on the Intel adapter instead. I've checked the option in the energy saver settings and it's ticked to "Automatically switch..." and when I untick this box, it switches to ATI and stays that way even when running on battery (as expected). Either way it will not switch to ATI graphics when plugged into mains unless forced to in this way.
Any one else seen this? Very frustrating when trying to run an external monitor with the Intel adapter!
Thanks in advance.
Dan

"As a last resort I opened the bottom cover and disconnected the battery power plug (MagSafe adapter also disconnected)."
After everything was disconnected did you press the power button and walk away for 5 minutes? Try that, just had one restart after waiting for that long.

Macbook shutdown without any warning after 40%, when run on battery.

Hello,
My Macbook when run on battery after 40% shuts off without a warning. Is there a way to avoid it? Is there a setting in the battery preferences where I can change to avoid shut down?
Battery Information:
Model Information:
Serial Number: DP-ASMB016-370e-4db1
Manufacturer: DP
Device name: ASMB016
Pack Lot Code: 0002
PCB Lot Code: 0000
Firmware Version: 102a
Hardware Revision: 0500
Cell Revision: 0200
Charge Information:
Charge remaining (mAh): 2496
Fully charged: No
Charging: Yes
Full charge capacity (mAh): 4276
Health Information:
Cycle count: 142
Condition: Good
Battery Installed: Yes
Amperage (mA): 1488
Voltage (mV): 12281
System Power Settings:
AC Power:
System Sleep Timer (Minutes): 60
Disk Sleep Timer (Minutes): 180
Display Sleep Timer (Minutes): 45
Automatic Restart On Power Loss: Yes
Wake On AC Change: No
Wake On Clamshell Open: Yes
Wake On LAN: Yes
Display Sleep Uses Dim: Yes
Battery Power:
System Sleep Timer (Minutes): 60
Disk Sleep Timer (Minutes): 180
Display Sleep Timer (Minutes): 45
Wake On AC Change: No
Wake On Clamshell Open: Yes
Display Sleep Uses Dim: Yes
Reduce Brightness: Yes
Hardware Configuration:
UPS Installed: No
AC Charger Information:
Connected: Yes
Charging: Yes
If you can suggest me with the above problem will be of great help. Thank you in advance.

Same issues here:
- When powering the MB on the battery, the MB can go off suddenly without warning, usually at about 20% but, since it started about 2 months ago, it occurred also at 7%, between 30 and 40% and even 70% once… It occurs every time when on batteries. And every time, if I start the computer again, it will shut down suddenly without warning after a few seconds/minutes. When back on mains, it can be powered on normally. It does not go to sleep, it's a complete and sudden power off without warning.
- The battery at about 173 cycles sees its capacity dwindling way too much (it's been dwindling since day one, but it's going down faster and faster, the graph since November 2007 in MiniBatteryLogger is edificatory). The capacity right now is between 2900 and 3460 depending of the feel of the day. It's been calibrated regularly since day one in July 2007. Note that the capacity dwindled from its original capacity but never went higher than this value even if along the way it recovered sometimes more capacity.
I have tried all the tricks from calibrating a little bit more often, reseted the SMC, even a complete system reinstall (that I wanted to do anyway as I had to get rid of the evil spotlight bug). All this to no avail.
So what? :-/
Model Information:
Serial Number: DP-ASMB013-3629-1bbc
Manufacturer: DP
Device name: ASMB013
Pack Lot Code: 0001
PCB Lot Code: 0000
Firmware Version: 0102
Hardware Revision: 0300
Cell Revision: 0200
Charge Information:
Charge remaining (mAh): 3320
Fully charged: Yes
Charging: No
Full charge capacity (mAh): 3412
Health Information:
Cycle count: 173
Condition: Check Battery
Battery Installed: Yes
Amperage (mA): -1
Voltage (mV): 12411
System Power Settings:
AC Power:
System Sleep Timer (Minutes): 0
Disk Sleep Timer (Minutes): 0
Display Sleep Timer (Minutes): 5
Automatic Restart On Power Loss: No
Wake On AC Change: No
Wake On Clamshell Open: Yes
Wake On LAN: Yes
Display Sleep Uses Dim: Yes
Battery Power:
System Sleep Timer (Minutes): 5
Disk Sleep Timer (Minutes): 10
Display Sleep Timer (Minutes): 1
Wake On AC Change: No
Wake On Clamshell Open: Yes
Display Sleep Uses Dim: Yes
Reduce Brightness: Yes
Hardware Configuration:
UPS Installed: No
AC Charger Information:
Connected: Yes
Charging: No

My macbook pro 2.0 early 2011 will not go to sleep with the power source connected. only enters sleep mode when running on battery. Someone did this happen, and it could solve?

Alo, my Macbook pro i7 2 GHz Intel Core i7 (early 2011) will not go to sleep with the power source connected. only enters sleep mode when running on battery. Someone did this happen, and it could solve?

There is no output from that command line? Maybe the pid changed.
I'll repeat what I am trying to find out...
1. You do a pmset -g on the terminal.
2. The output from that pmset should have a line that says "sleep 0 (imposed by n)" where n is some number.
3. The ps ax | grep n is supposed to display what the process associated with n is.
It's the output from step 3 that should indicate what is causing you not to sleep.
But speaking of sleep, that's where I am going.

Macbook Pro crashes when running on battery

Hi.
My Macbook Pro crashes when running in battery. It seems it doesn't happen when connected to the power.
Is there any way to know if it's a battery malfunction?
Because Apple changed the motherboard a month ago or so because Nvidia broke. So it could be also the connector to the battery?
Is there any tests I can run?
Thanks

I would take it back to Apple and have them check it. You may have got a replacement logic board with a problem. Apple usually use rebuilt ones.
Dave M.
MacOSG Founder/Ambassador  An Apple User Group  iTunes: MacOSG Podcast
Macsimum News Associate Editor  Creator of 'Mac611 - Mobile Mac Support'

MBP shuts down suddenly when running in battery mode

Hi
I am from Zaragoza (Spain) and lately (about 2 months ago as I can remember) my mbp shuts down when running in battery mode and without any advice. I see some of you also have this problem.
I thought it was me not seeing the low battery indicator but last week I realized the battery was above 40%!!
This problem has been repeating and the battery level was between 40% and 60% when my computer shut down.
What am I supposed to do? My MBP is still in warranty and I bought it in the online apple store.
Thanks for the help.

In the system profiler it says the cycle count to 24. The laptop is from late March 2008.
The battery info is the following:
Battery Information:
Model Information:
Serial Number: Sony-ASMB012-3841-b0b7
Manufacturer: Sony
Device name: ASMB012
Pack Lot Code: 0000
PCB Lot Code: 0000
Firmware Version: 0110
Hardware Revision: 0500
Cell Revision: 0303
Charge Information:
Charge remaining (mAh): 1718
Fully charged: No
Charging: No
Full charge capacity (mAh): 1875
Health Information:
Cycle count: 24
Condition: Check battery
Battery Installed: Yes
Amperage (mA): -2133
Voltage (mV): 11757
I did the SMC reset, but I cannot complete the Battery Calibration, the laptop shuts down at half charge battery and does not go to sleep mode.
Thanks for your help.

My macbook won't turn it on when running by battery

my 13" macbook won't turn it on when running by battery even the battery is completely charged. Even though plugging by power my macbook still works. What should I do to make sure the battery of the macbook to make it work again.

You might try to reset the SMC and/or PRAM. If that doesn't help you should contact apple service about getting it replaced.

Z510 automatically shuts down at 99% battery, when running on battery

My Lenovo IdeaPad Z510 shuts down after 30-40 minutes when running on battery, without any notification. The battery level displays 99% battery.I've tried various troubleshooting steps, including gauge reset, charging for 10 hours when shut down, charging couple of times in BIOS mode. The energy manager says battery health is "normal". Battery report says :DESIGN CAPACITY43,200 mWhFULL CHARGE CAPACITY48,000 mWh My laptop is under warranty, but service center has refused to replace battery because report says it's healthy. Kindly provide some solution.

If the battery says its health is fine, it seems to me like its an issue with the motherboard. I'm not really sure how you'd go about checking that though especially since the service center won't let you send your laptop in. Might have to wait for someone else who knows more about it than me, sorry .

New X220 will not start up when running on battery

I just received my new Thinkpad X220 4286CTO and found that when the computer is unplugged, I cannot start the computer after hibernation or shutting down.
The battery will charge just fine, and the laptop can run on battery just fine (drained from 100% to about 82% in two hours of use). When running on battery only, the computer can wake up from sleep. However, if I hibernate or shut down and then try to turn it on when unplugged, there is no response (no lights or anything). Then, when I plug the computer back in, it will turn on immediately (without pressing any keys), which surprised me. During this whole time the battery was between 80 and 100% charge.
One other quirk I noticed is that if I turn the laptop back on very quickly (press the power button within 5 seconds of finishing hibernating or shutting down), it will come back on, but if I wait more than 5 seconds, it is completely unresponsive until I plug it back in.
Has anyone else had this problem or know how to fix it? I will probably just send it back for possible motherboard / battery replacement, but I was wondering if there was anything I could try to fix it and avoid this. Thanks!

I think you need to call support. Sounds like a defective battery or motherboard, as you suggested.

Brand new macbook won't run off battery, only when plugged in

I just go my new macbook last week and being new to mac computers, I didn't realize that it won't run from just the battery power until last night. The battery light shows it's fully charged. If i'm working with it plugged in and it becomes unplugged, it shuts down and when I reconnect the power cord, it resumes from the same webpage or whatever I was last working on. I opened up the battery compartment and removed the battery and then held the power button for 5 seconds, but that didn't fix the problem. Does anyone know what I might try or if something needs to be set up in order to run off the battery? Thanks! Leigh

Hello leighdk,
Welcome to Apple Discussions!
You can by all means take some good advise from the people on this board in response to you problem.
But here is the best advise, especially since you're new to Mac.
Call Apple Care or take it back to the store and have them check it out. It is under warranty. You have 14 days from the date of purchase to return the Mac for a completely different or give it back because you do not like it. they may try to charge you a restocking fee but this should not be the case since there is an issue with you machine.
Call Apple, see what they say... Then if you can't get it resolved then post back and maybe we can give you some sound advise.

Battery not availble BUT still running off battery!?!

So yesterday, my MacBook decided to not show up... what? Randomly, out of the blue! It had previously been working just fine, about 80% health, and then, all of a sudden, it stops recognizing that there's a battery installed. Here's the funny part, though... The battery still has a charge (as shown by LEDs on the bottom), and the MacBook still runs off the battery, despite it saying it doesn't have one! Unsurprisingly, the battery doesn't charge either.
The computer will only start up if plugged in, but can subsequently be unplugged to run on the remaining battery power.
It seems the problem here isn't the capacity of the battery, but the communication between the battery and the computer.
I've tried resetting the SMC and cleaning the contacts of the battery, but neither of those had any effects.
Do I have any recourse besides trying/buying a new battery?

I have the same exact problem...totally out of the blue. You definitely don't need a new battery because my problem started couple of days after I purchased a brand new battery.
I think it might be the battery connector to the logic board. In almost all other cases with this problem, when the battery isn't recognized by the mac, then you have two of the following: it doesn't charge AND the computer doesn't run off the battery alone, even if the battery indicates that it still has juice left.
Unless instructed otherwise, I'm going to open up the computer and re-connect and clean the battery connector.
Also, do you have the updated battery software?

MACBOOK WON'T RUN OFF BATTERY

My MacBook will not run off the battery.
I replaced the battery. Now when the machine boots the battery icon indicates that it is calculating for a few minutes and then displays an X in the icon.
I click on the icon at get the message that NO BATTERIES AVAILABLE.
The battery is charged and I have reset the SMC.
From all of the disussion groups this appears to be a common problem.
IS THERE A SOLUTION?

Hello leighdk,
Welcome to Apple Discussions!
You can by all means take some good advise from the people on this board in response to you problem.
But here is the best advise, especially since you're new to Mac.
Call Apple Care or take it back to the store and have them check it out. It is under warranty. You have 14 days from the date of purchase to return the Mac for a completely different or give it back because you do not like it. they may try to charge you a restocking fee but this should not be the case since there is an issue with you machine.
Call Apple, see what they say... Then if you can't get it resolved then post back and maybe we can give you some sound advise.

Disconnecting when running off battery

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