Magsafe-Dead Battery Question

I'm troubleshooting to see if my magsafe is working.
I went thru all items in Article: TS1713
http://support.apple.com/kb/TS1713?viewlocale=en_US
My question is.....
If a battery is passed on, is no more, has ceased to be, is expired and gone to meet it's maker. Is a stiff, bereft of life, has kicked the bucket, run down the curtain and joined the bleedin' choir invisibile!!
IF IT IS AN EX-BATTERY.......... will a properly working magsafe adapter supply the necessary power to operate the macbook?
Should the green or amber light be on?
Thanks
Marco

Two things happen without the battery. First, the CPU clock speed is reduced by half meaning your computer runs at half power. Second, if you lose AC power then there is no power backup. This will result in immediate and abnormal shutdown of the computer that can lead to corrupted directories and/or data loss.
The AC adaptor cannot supply sufficient power on its own which is the reason the clock speed is reduced when a battery is not present. During high power needs the battery can supply the additional power that the adaptor cannot provide on its own.

Similar Messages

  • Dead battery question

    Hi, I believe someone left my laptop on, and it will not start up even after plugging it in for several hours.  Can being left on deplete the battery so it will not charge up?  Is there a feature that will prevent this from happening?   The computer is several years old and up until this problem, there hasn't been any battery issues.  How can I determine if the battery is dead and needs replacment?  thanks for any help in advance.....Mike

    fredfordguy wrote:
    Hi, I believe someone left my laptop on, and it will not start up even after plugging it in for several hours.  Can being left on deplete the battery so it will not charge up?  Is there a feature that will prevent this from happening?   The computer is several years old and up until this problem, there hasn't been any battery issues.  How can I determine if the battery is dead and needs replacment?  thanks for any help in advance.....MikeWhom is that someone that left it on? Battery goes dead evetually they don't last forever and since the ocmputer is several years old consider yourself lucky it lasted that long. Take out the battery and leave power plugged in and see if it will turn on. That will be a test to see if your adapter is still working to power on the laptop or has gone bad and can only power but not charge the battery.

  • Upon restart from dead battery Macbook freezes showing gray folder with question mark.  Help!  Any ideas?

    Upon restart from dead battery Mac Book freezes showing gray folder with blinking question mark.  Help!  Any guidance greatly appreciated.

    Hello and welcome,
    try this support site:
    A flashing question mark or globe appears when you start your Mac - Apple Support
    If you're lucky it just forgot where your startup disk was. If not it will be more work.

  • Is this just a dead battery...?

    …or is it something more serious?
    Here's the situation: I keep my 5-year-old 13" white Macbook (macbook2,1) plugged in most of the time, so the battery doesn't get a lot of exercise, and consistently reports fully charged. Lately, when I use it on battery, it starts up OK, or seems to — and reports fully charged — but as soon as I do anything interesting (e.g., open Safari) it just shuts off. Cold. And won't restart (it'll chime, but that's all), until I plug it in; the battery still reports full charged, however. If I leave it plugged in awhile, it'll start on battery, but as soon as I load a web page...
    I've tried taking out the battery, starting up plugged in and then replacing it, hoping that might reset something. No luck.
    Is this simply a dead battery? It acts like it's "not holding a charge", but the system, suspiciously enough, still reports fully charged, or nearly so. Before I bounce for a buck and a quarter for a replacement battery only to find I still have a problem, I thought I'd put the question up before the real geniuses...
    Is this simply a matter of a failed battery, or is there more to this than meets the ocular organ?
    TIA, points will be awarded...
    Jeff

    OK, the above was the report after the MacBook had been plugged in for a few days. I decided to see what came up when I started on the battery, but the first time I tried it, as soon as Safari launched (it's a login item) it went down. So I let the battery get back up to 100%, and restarted, bypassing login items. System Info reported this:
    Battery Information:
      Model Information:
      Manufacturer:          DP
      Device Name:          ASMB013
      Pack Lot Code:          1
      PCB Lot Code:          0
      Firmware Version:          102
      Hardware Revision:          300
      Cell Revision:          200
      Charge Information:
      Charge Remaining (mAh):          4120
      Fully Charged:          Yes
      Charging:          No
      Full Charge Capacity (mAh):          4273
      Health Information:
      Cycle Count:          37
      Condition:          Normal
      Battery Installed:          Yes
      Amperage (mA):          -2054
      Voltage (mV):          10705
    I note that those last two items are quite different, and indeed, the voltage had been reduced to < 11V. Dunno if that's significant.
    I then tried launching Safari and it promptly went down. It occurred to me that the issue might involve Safari specifically in some way, so I let the battery charge back up again, de-logined Safari, and restarted. I was able to launch a few smaller applications; then I launched Backup, so far so good, but when I tried actually starting a backup, poof.
    It's too bad I can't either find a MacBook to borrow to try with my battery or borrow a battery; no one I know has an appropriate model MacBook.

  • Brand new iPod touch will not turn on. Goes straight to dead battery screen.

    Hello.
    I recently purchased a refurbished iPod touch to develop apps on. I have had the iPod touch for about a week and last night the iPod suddenly shut off in the middle of use. The battery was low so I figured it was simply a dead battery and I went to plug it into the charger. This morning, I tried to turn it back on after about 10 hours of charging and I got the same dead battery plug in charger screen. I then swichted it to a usb slot on my macbook and left it to charge all day for about 9 hours. Again, I turned it on and nothing, just a dead battery screen. Both usb slots on my computer are working completely fine for my other devicesbut not this. I have also tried plugging it into the wall, but I get the same results. One other possibility is that I have the iOS 8 Beta on my phone currently and I have experienced some issues with that, but not enough to brick my device...or at least I thought. I have only had this device for a few days and so far I am very disappointed that this has happened already. If anyone can help me out without having to go to an Apple store for service that would be great!
    Thanks

    So did you iPod 5th gen worked again? I had similar experience. This is my own iPod (not refurbished), so I know it was
    in great condition (I rarely used it but only for dev). I installed iOS8 Beta, and one morning, the screen won't turn on.
    I plugged in power and nothing happened. After a few min, I heard that characteristic "power beep" and thankfully,
    it came back to live. What I noticed is that I have > 90% power. So whatever happened, it isnt because it's low in
    battery.
    I have a suspicion it is entirely due to iOS 8 beta. Such a thing never happened to my iPod till the day I installed it.
    My theory is that it is doing something busy, or there's a bug in the "waking" mechanism, and become extremely
    sluggish to any external input, until it is done with whatever mysterious things it was doing. I am now putting it
    in air plane mode whenever i don't need it, and also turn off icloud back up. Hopefully, I don't see this anymore.

  • My iPad no longer recognizes my Zagg keyboard.  Turned it off and on several times.  One suggestion in manual is a dead battery.  Where is a battery on a Zagg case?  The iPad battery is fully charged.

    My iPad 4 no longer recognizes my Zagg keyboard.  Turned it off and on several times.  One suggestion in manual is a dead battery.  Where is a battery on a Zagg case?  The iPad battery is fully charged and Bluetooth is on and the Zaggkeys PROfolio is listed but says NOT CONNECTED.  What else should I try?

    Well, you shoud tap the line where it says not connected, and it should prompt you to enter something.  Regarding Zagg products, http://www.zagg.com/keyboard-cases/index.php?gclid=CIPgv7O_oL0CFQ8OOgodvnoA1w&ef _id=Uo5AsQAABFW6AX3n:20140320063435:s
    is the link to Zagg's website.

  • Possible dead battery on late 2007 MacBook white?

    Yesterday my girlfriend put her late 2007 MacBook (running 10.5.1) to sleep and when she went to wake it up it would appear to have died/shutdown and then tried to start up. There was a whir of the DVD drive and then it started to play the boot sound and then just cut out.
    On further attempts to boot it (from battery) now does the same thing. Though if the power is plugged in then it starts OK. I've tried an SMC reset, but that doesn't appear to have helped.
    The MacBook was purchased in December 2007. Current battery info is as follows:
    Battery Information:
    Model Information:
    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): 3310
    Fully charged: No
    Charging: Yes
    Full charge capacity (mAh): 4019
    Health Information:
    Cycle count: 285
    Battery health: Good
    Battery Installed: Yes
    Amperage (mA): 1073
    Voltage (mV): 12535
    Does all this point to a dead battery?
    Cheers,
    Jay

    After a bit more looking it may be the same problem as described on post http://discussions.apple.com/thread.jspa?threadID=1954449&start=0&tstart=0 as we've been away for a week. Also the battery is the same model number (although not firmware) as the one listed in the info for Battery Updater 1.4.
    First things first, I need to backup then upgrade the MacBook to 10.5.8 as the Battery Updater 1.4 requires 10.5.6 or later. Then try the Battery Updater and a charge to see what happens and if all else fails maybe a visit to Apple (eveb though AppleCare is long gone) as the battery is below 300 cycles which some people have got Apple to replace as a faulty battery.

  • How to get Ipad out of the Dead Battery screen

    Yestorday I got home and went on my ipad was to lazy to put it on charge so it went dead and came up with that black screen with the red battery so i started charging it with the wall charger and all it does is show that it is being charged for about 9 secounds than the screen will flash of and not come on again untill i press the home button or power button,Than it will just keep doing the same thing still in the dead battery screen, cant put it in DFU mode because it just flashes of power i can complete the procedure Only started Happening since IOS7
    No computer recognizes it at all, Help Please

    Try pressing the home button three times quickly.

  • My ipod will only show the dead battery screen and wont taking a charge.

    my ipod will only show the dead battery screen and wont taking a charge on any of my sinc cords or my outlet charger. And I have checked that nothing is in the plug port blocking the electrodes. What do I do now?

    Put the device in DFU mode (google it) and restore via iTunes.

  • HT201210 Wont turn on just flashes apple sign, for an ipad 2 what would cause this to happen When I tried to restore started to flash the dead battery sign

    Wont turn on just flashes apple sign, for an ipad 2 what would cause this to happen When I tried to restore started to flash the dead battery sign

    Hello Tommythecat_nz,
    I would check to ensure that the device is fully charged if you got the dead battery indicator. Let it charge for some time.
    -Derrick Lambert

  • E6 users please answer. (battery questions)

    Hi to all!
    So im using a E6 now for 1 week
    and from day to day i regret for buying it!!!!!
    Some of you tell that battery is awsome ( lucky guys)
    and other (like me) hate the phone and battery
    Question to happy users?
    -does your phone heats while web browsing?
    - do you switch off phone over night?
    - u use 3g or?
    - how many houts of talking you have over day and sms?
    - which widgets and programs are you using?
    last night i charge a phone from 11pm to 7am.
    start web browsing at 7:30am to 7:45am (while i wait in the line)
    at 9:00 make a 5 minutes phone call
    by the 10:30 battery was at 80%
    settings on my phone:
    - 1 homescreen. only a fav contacts widget
    - mailbox deleted. no mail. no sync..
    - display illumination at 2, 15 second display light
    - 3g is switched off
    - d pad illumination switched off
    - silent profile ( only vibration on)
    NOKIA MUST RESPONSE FOR THIS QUESTION:
    NOKIA THIS ISNT FUNNY

    yeah it's **bleep**. Even with power save mode, it goes to 80 percent in no time.

  • Hey have a problem my iphone 4 die on me when i put it to charge it wold show a dead battery and gets really hot please help me

    hey my iphone 4 need help please help me

    my phone die and when i put it to charge it only show a dead battery and the phone gets really hot

  • IPhone 4 won't turn on or show dead battery logo

    So, one day I couldn't find my iphone. I look and look and then I finally find it just sitting on my bed (upper bed). I try to turn it on and it does something weird. If it's dead, it will show the dead battery and the connection sign, but it didn't do it this time. It just stays black. I attempted to do the two button reset but my home button has been messed up for a while, sometimes it works but most times it doesn't. I tried plugging it up and keeping it plugged, nothing changes.
    What exactly could be the problem? Is there some way I can open it to fiddle with the home button to maybe try and get that to work? Also, I'm using the OS 6.x not 7

    Hello, WeaveAndWish.
    Thank you for visiting Apple Support Communities. 
    You may find this article helpful in troubleshooting this issue that you are experiencing.
    iOS: Not responding or does not turn on
    http://support.apple.com/kb/TS3281
    Cheers,
    Jason H.

  • My iPhone 4 died and I have tried charging it and plugging it into the computer, but nothing happens execpt the dead battery thing that pops up when you charge it when it's completely dead.

    My iPhone 4 died and I have tried charging it and plugging it into the computer, but nothing happens execpt the dead battery thing that pops up when you charge it when it's completely dead.

    Try:                                               
    - iOS: Not responding or does not turn on           
    - Also try DFU mode after try recovery mode
    How to put iPod touch / iPhone into DFU mode « Karthik's scribblings
    - If not successful and you can't fully turn the iOS device fully off, let the battery fully drain. After charging for an least an hour try the above again.
    - Try another cable       
    - Try on another computer                                                       
    - If still not successful that usually indicates a hardware problem and an appointment at the Genius Bar of an Apple store is in order.
      Apple Retail Store - Genius Bar                              

  • Macbook, problems from dead battery

    My Mother-in-Law contacted me, was having issues with her MacBook.  Brought it home, completely dead battery.  I got it running but what are other issues that I should be aware of as a result of the dead battery.  Whenever it gets unplugged there is no power at all.  Besides getting a new battery, what other things need to be reset?
    Thanks

    You can get a new battery fairly cheap on eBay. When you put it in calibrate it. http://support.apple.com/kb/HT1490
    Black Batteries http://shop.ebay.com/i.html?_nkw=macbook+black+battery&_sacat=0&LH_BIN=1&_sop=12 &_dmpt=Laptop_Batteries&_odkw=macbook+white+battery&_osacat=0&_trksid=p3286.c0.m 270.l1313
    White Batteries http://shop.ebay.com/i.html?_nkw=macbook+white+battery&_sacat=0&LH_BIN=1&_sop=12 &_dmpt=Laptop_Batteries&_odkw=macbook+black+battery&_osacat=0&_trksid=p3286.c0.m 270.l1313
    Or for $129 from Apple http://store.apple.com/us/product/MA566LL/A?mco=MTY3ODQ5OTY

Maybe you are looking for

  • I need a new printer and would be grateful for your help

    I'm a freelancer, currently working from home. I have a big old Epson photo printer, but it runs out of ink way too fast and the new cartridges cost a fortune. I don't need to print photos, or high quality images - I just need to print off creative b

  • Native SQL "Table does not exist in database"

    Hi Developers, I'm doing a database connection to an Oracle db and trying to read data using native SQL - I keep getting the runtime error "table does not exist in database" on the statement Fetch Next Cursor. The following is the code snippet (I've

  • Verification Failed. The certificate for this server is invalid

    I am trying to backup my iPad to iCloud.  I get: Verification Failed.  The certificate for this server is invalid. You might be connecting to a server that is pretending to be "setup.icloud.com" which could put your confidential information at risk.

  • Connecting to shared iTunes via iPod Touch wifi connection

    I was wondering if there was a way for me to connect to my shared iTunes music from my iPod Touch (IE in another room, NOT connected to a computer). I would assume that since my iTunes is shared over my wifi connection, and my iPod Touch connects ove

  • Where is user library in Lion

    I installed Lion and now I cannot seem to find the User Library. So where is it?