Battery won't recharge

battery won't charge; what to do?

Try this first - Reset the iPad by holding down on the Sleep and Home buttons at the same time for about 10-15 seconds until the Apple Logo appears - ignore the red slider - let go of the buttons. (This is equivalent to rebooting your computer.)
The quickest way (and really the only way) to charge your iPad is with the included 10W or 12W (5W on Mini) USB Power Adapter. iPad will also charge, although more slowly, when attached to a computer with a high-power USB port (many recent Mac computers) or with an iPhone Power Adapter (5W). When attached to a computer via a standard USB port (2.5W, most PCs or older Mac computers) iPad will charge very slowly (but iPad indicates not charging). Make sure your computer is on while charging iPad via USB. If iPad is connected to a computer that’s turned off or is in sleep or standby mode, the iPad battery will continue to drain.
Apple recommends that once a month you let the iPad fully discharge & then recharge to 100%.
How to Calibrate Your Mac, iPhone, or iPad Battery
http://www.macblend.com/how-to-calibrate-your-mac-iphone-or-ipad-battery/
At this link http://www.tomshardware.com/reviews/galaxy-tab-android-tablet,3014-11.html , tests show that the iPad 2 battery (25 watt-hours) will charge to 90% in 3 hours 1 minute. It will charge to 100% in 4 hours 2 minutes. The new iPad has a larger capacity battery (42 watt-hours), so using the 10W charger will obviously take longer. If you are using your iPad while charging, it will take even longer. It's best to turn your new iPad OFF and charge over night. Also look at The iPad's charging challenge explained http://www.macworld.com/article/1150356/ipadcharging.html
Also, if you have a 3rd generation iPad, look at
Apple: iPad Battery Nothing to Get Charged Up About
http://allthingsd.com/20120327/apple-ipad-battery-nothing-to-get-charged-up-abou t/
Apple Explains New iPad's Continued Charging Beyond 100% Battery Level
http://www.macrumors.com/2012/03/27/apple-explains-new-ipads-continued-charging- beyond-100-battery-level/
New iPad Takes Much Longer to Charge Than iPad 2
http://www.iphonehacks.com/2012/03/new-ipad-takes-much-longer-to-charge-than-ipa d-2.html
Apple Batteries - iPad http://www.apple.com/batteries/ipad.html
iPhone: Hardware troubleshooting (Power/Battery section also applies to iPad)
http://support.apple.com/kb/TS2802
Extend iPad Battery Life (Look at pjl123 comment)
https://discussions.apple.com/thread/3921324?tstart=30
New iPad Slow to Recharge, Barely Charges During Use
http://www.pcworld.com/article/252326/new_ipad_slow_to_recharge_barely_charges_d uring_use.html
iPad: Charging the battery
http://support.apple.com/kb/HT4060
Best Practices for iPad Battery Charging
http://www.ilounge.com/index.php/articles/comments/best-practices-for-ipad-batte ry-charging/
Tips About Charging for New iPad 3
http://goodscool-electronics.blogspot.com/2012/04/tips-about-charging-for-new-ip ad-3.html
How to Save and Prolong the battery life of your new ipad
https://discussions.apple.com/thread/4480944?tstart=0
Prolong battery lifespan for iPad / iPad 2 / iPad 3: charging tips
http://thehowto.wikidot.com/prolong-battery-lifespan-for-ipad
iPhone, iPod, Using the iPad Charger
http://support.apple.com/kb/HT4327
Install and use Battery Doctor HD
http://itunes.apple.com/tw/app/battery-doctor-hd/id459702901?mt=8
To Extend a Device’s Battery Life, Get to Know It Better
http://tinyurl.com/b67c7xz
iPad Battery Replacement
http://www.apple.com/batteries/replacements.html
In rare instances when using the Camera Connection Kit, you may notice that iPad does not charge after using the Camera Connection Kit. Disconnecting and reconnecting the iPad from the charger will resolve this issue.
 Cheers, Tom

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    Could be the charger, cable or iPad. Plug the USB cable into your computer. It may say "Not Charging", however, it is charging slowly and will verify that the cable is good.
    Try this first - Reset the iPad by holding down on the Sleep and Home buttons at the same time for about 10-15 seconds until the Apple Logo appears - ignore the red slider - let go of the buttons. (This is equivalent to rebooting your computer.)
    The quickest way (and really the only way) to charge your iPad is with the included 10W or 12W (5W on Mini) USB Power Adapter. iPad will also charge, although more slowly, when attached to a computer with a high-power USB port (many recent Mac computers) or with an iPhone Power Adapter (5W). When attached to a computer via a standard USB port (2.5W, most PCs or older Mac computers) iPad will charge very slowly (but iPad indicates not charging). Make sure your computer is on while charging iPad via USB. If iPad is connected to a computer that’s turned off or is in sleep or standby mode, the iPad battery will continue to drain.
    Apple recommends that once a month you let the iPad fully discharge & then recharge to 100%.
    How to Calibrate Your Mac, iPhone, or iPad Battery
    http://www.macblend.com/how-to-calibrate-your-mac-iphone-or-ipad-battery/
    At this link http://www.tomshardware.com/reviews/galaxy-tab-android-tablet,3014-11.html , tests show that the iPad 2 battery (25 watt-hours) will charge to 90% in 3 hours 1 minute. It will charge to 100% in 4 hours 2 minutes. The new iPad has a larger capacity battery (42 watt-hours), so using the 10W charger will obviously take longer. If you are using your iPad while charging, it will take even longer. It's best to turn your new iPad OFF and charge over night. Also look at The iPad's charging challenge explained http://www.macworld.com/article/1150356/ipadcharging.html
    Also, if you have a 3rd generation iPad, look at
    Apple: iPad Battery Nothing to Get Charged Up About
    http://allthingsd.com/20120327/apple-ipad-battery-nothing-to-get-charged-up-abou t/
    Apple Explains New iPad's Continued Charging Beyond 100% Battery Level
    http://www.macrumors.com/2012/03/27/apple-explains-new-ipads-continued-charging- beyond-100-battery-level/
    New iPad Takes Much Longer to Charge Than iPad 2
    http://www.iphonehacks.com/2012/03/new-ipad-takes-much-longer-to-charge-than-ipa d-2.html
    Apple Batteries - iPad http://www.apple.com/batteries/ipad.html
    iPhone: Hardware troubleshooting (Power/Battery section also applies to iPad)
    http://support.apple.com/kb/TS2802
    Extend iPad Battery Life (Look at pjl123 comment)
    https://discussions.apple.com/thread/3921324?tstart=30
    iOS 7 Battery Life Draining Too Fast? It’s Easy to Fix
    http://osxdaily.com/2013/09/19/ios-7-battery-life-fix/
    Poor battery life after installing iOS 7.1? Try these simple tips
    http://www.zdnet.com/poor-battery-life-after-installing-ios-7-1-try-these-simple -tips-7000027348/
    New iPad Slow to Recharge, Barely Charges During Use
    http://www.pcworld.com/article/252326/new_ipad_slow_to_recharge_barely_charges_d uring_use.html
    iPad: Charging the battery
    http://support.apple.com/kb/HT4060
    Best Practices for iPad Battery Charging
    http://www.ilounge.com/index.php/articles/comments/best-practices-for-ipad-batte ry-charging/
    How to Save and Prolong the battery life of your new ipad
    https://discussions.apple.com/thread/4480944?tstart=0
    Prolong battery lifespan for iPad / iPad 2 / iPad 3: charging tips
    http://thehowto.wikidot.com/prolong-battery-lifespan-for-ipad
    iPhone, iPod, Using the iPad Charger
    http://support.apple.com/kb/HT4327
    Install and use Battery Doctor HD
    http://itunes.apple.com/tw/app/battery-doctor-hd/id459702901?mt=8
    To Extend a Device’s Battery Life, Get to Know It Better
    http://tinyurl.com/b67c7xz
    iPad Battery Replacement
    http://www.apple.com/batteries/replacements.html
    In rare instances when using the Camera Connection Kit, you may notice that iPad does not charge after using the Camera Connection Kit. Disconnecting and reconnecting the iPad from the charger will resolve this issue.
     Cheers, Tom

  • Wallstreet Battery Won't Charge

    I just got a new battery for my old Wallstreet. The battery was fully charged when it arrived, and it ran my Powerbook for over four hours. But now it won't recharge.
    The Power Adapter has been plugged in since late last night, after I ran the battery down as a test.
    The Wallstreet runs fine while plugged it. When I unplug the power adapter, the screen dims and I get the warning to plug it back in or else.
    The battery indicator in the menu bar started out all red yesterday afternoon, but now it shows mostly blue with a white top and a tiny red bottom, with a red arrow pointing to the top of the red.
    When I press the button on the battery proper, one green led lights.
    The battery level indicator in the Control Strip is unusual in that it shows the symbol for two batteries, even though I have only one. The left bay (the bay the battery is actually in) indicator shows plugged-in, instead of the lightning-bolt, and the level indicators are all white. The right bay (which actually contains a floppy drive) indicator shows a plain white battery symbol and the level indicators are all white. Swapping the battery and the floppy drive reverses these symbols in the control strip.
    I have tried:
    a) Zapping the P-RAM (reboot holding command-option-P-R until three consecutive chimes, then release).
    b) Resetting the Power Manager (shut down, hold shift-function-control-power for 5 seconds, note that the sleep light blinks, wait 5 seconds, press Power).
    c) Running Battery Reset 2.0, then removing the battery for 60 seconds, then reinserting the battery.
    d) Trashing Energy Saver Preferences and Control Strip Preferences, then restarting.
    e) Swapping the bays for the floppy and the battery and rerunning all the above.
    All these had no effect.
    I also tried to reset the NVRAM, but the instructions I found (reboot holding command-option-O-F until the Open Firmware window appears), didn't open the Open Firmware window.
    I read about an Apple product called "Intelligent Battery Recondition" and even found its Read Me file in the Apple Knowledgebase. But I could not find the product in Downloads.
    I heard about and downloaded Battery Amnesia, but, after reading its Read Me file, I decided that it doesn't actually address my problem and could interfere with this diagnosis.
    I ran Software Update and it found nothing new.
    I'd appreciate any suggestions.
    --Gil

    Thank you, Denis, for the references to the software stashes. They are a comfort against future Times of Trouble.
    I think maybe Intelligent Battery Reset (IBR) is the same as Apple Battery Reset (ABR), no? I used an application which I found in my Wallstreet's Applications folder (Utilities subfolder) called "Battery Reset 2.0", with "Copyright Apple Computer" in the Get Info->Version property. It had the effect of reducing my poor, weak battery's red bottom to the very bottom, but did not cause the battery icon to show charging (a lightning bolt).
    I also considered VST's EMMpathy, but I couldn't convince myself that it was designed for the Wallstreet battery.
    Thanks for the suggestion of a possible mechanical fault in either the power adapter plug or the logic board. I have not pursued this, partly because the instructions to open the case and examine the Power Adapter logic board are a little scary, and partly because I have found a temporary workaround. I may pursue this further.
    Thanks also for the reference to the idiosyncrasies of Li-Ion batteries. I shall study it further.
    JPL, thanks for the comforting observation about the control strip icons, and for reminding me that some Wallstreets will not charge while running. This turns out to be the case with mine. It charges fine if I will only close the lid. While this isn't exactly what I would have wanted, it does provide me with an acceptable workaround.
    So, now, the battery is all red and all four little green lights light up when I push the button. I consider this problem essentially solved. But there seems to be more...
    Your message, JPL, suggests there may be more detail that would allow my Wallstreet to charge even with the case open. I suppose that this detail might include opening the case and getting at those solder points that Denis mentioned. If you wouldn't mind posting this information, I would like to consider it.
    Grant, thank you for pointing out that a standalone charger is a reasonable-cost item. I shall look for one on eBay.
    Thank you all for your most welcome support. I now have a fully charged battery, a reasonable workaround, and some more ideas to try. Who could ask for anything more? You guys are a great help.
    --Gil

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