Why the battery percentage decrease continuously while charging?

Why the battery percentage decrease continuously while plugged in??

Is it PLUGED into USB or the mains If mains try a reboot press & hold power button & menu button hold both down until you see Apple Logo you will not lose any data. Bsydd uk

Similar Messages

  • Why does battery percentage decrease even when new iphone5 is plugged into power?

    My new iphone5 seems to lose charge on occasions whilst I am using it and it is connected to power ?

    Something is running that is consuming power faster than the charger can replace it.

  • Battery percentage decreasing while charging!

    Preface: Please forgive my technological ineptitude in advance. I am completely computer illiterate and have embarrasingly little tech vocabulary.
    Okay. Help! While my MacBook Pro is plugged in and charging, the battery percentage is going DOWN instead of up. Yikes. If I stop using the computer, close it and let it charge, the battery percentage goes up when I check it after 20 minutes or so. As soon as I start using it while it's still plugged in however, the battery drains (goes down even though it's plugged in). I've pasted the System Report on Power below (I have no idea what any of it means), the recommendation was from another topic forum. Does anyone know what is happening w/ my laptop? It should also be noted that this is a brand new charger (60W MagSafe Power Adapter), but was still happening before with my old charger before it died (the magnetic piece detached from the part you plug into the computer). Also, it seems to be getting really hot (the new one AND old one!) Thank you for your help!!!
    Battery Information:
      Model Information:
      Serial Number:          W0113445WD3BA
      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):          4428
      Fully Charged:          No
      Charging:          Yes
      Full Charge Capacity (mAh):          5045
      Health Information:
      Cycle Count:          496
      Condition:          Normal
      Battery Installed:          Yes
      Amperage (mA):          -868
      Voltage (mV):          11995
    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
      Standby Delay:          4200
      Standby Enabled:          0
      Battery Power:
      System Sleep Timer (Minutes):          10
      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
      Standby Delay:          4200
      Standby Enabled:          0
    Hardware Configuration:
      UPS Installed:          No
    AC Charger Information:
      Connected:          Yes
      ID:          0x0100
      Wattage (W):          60
      Revision:          0x0000
      Family:          0x0085
      Serial Number:          0x009b16e5
      Charging:          Yes

    Sofia925 wrote:
    . As soon as I start using it while it's still plugged in however, the battery drains (goes down even though it's plugged in).
    This is normal. When cpu/gpu intensive activities are run, sometimes computer
    may draw power from the battery.
    Try resetting SMC.
    1. Reset SMC.     http://support.apple.com/kb/HT3964
        Choose the method for:
        "Resetting SMC on portables with a battery you should not remove on your own"
    Best.

  • Im worried about the battery percentage while play a game on my iphone 4s.so that,i decided to play a games and charging at the same time.is it problem on my battery ? im to worried.please give a conclusion.

    Im too worried about the battery percentage while playing a game on my iphone 4s.so that,i decided to play a games and charging at the same time.im too worried for my battery problem on the future.please give a conclusion.

    It is perfectly fine to use the phone while charging it.

  • Hey, I broke my iPhone 4 screen when I change it my phone start to turn off while my battery reach the 25% when I connect it to the charger it switched on, and the battery percentage is around 25% so it's the time for a new battery, or I need to calibrate

    hey, I broke my iPhone 4 screen when I change it my phone start to turn off while my battery reach the 25% when I connect it to the charger it switched on, and the battery percentage is around 25% so it's the time for a new battery, or I need to calibrate it? thank you

    There are no user serviceable parts in an iPhone. Since you
    made an unauthorized repair to your iPhone, you will have to
    seek assistance elsewhere.
    Google or ifixit.com may provide some direction, but you can
    get no help here per Terms of Service. Sorry to tell you this,
    but it is what it is.

  • I just get the new iPad air and when connecting it to my laptop, why the battery is not charging?

    just get the new iPad air and when connecting it to my laptop, why the battery is not charging?

    A lot of computers don't provide enough power to their USB ports to charge the iPad at a sufficient rate - it may still be charging slowly, and should be a bit quicker if the iPad's screen is off (if you leave it for a while and then disconnect it from your computer you may find that it's battery percentage has gone up). The wall charger is usually the most efficient way to charge the iPad.

  • Hello.  I recently pieced together a late 2008 MacBook Pro 15".  Everything works fine except the battery constantly goes between "not charging" and "calculating" or, rarely "charging". It does charge after a long while and will report that it is charged.

    Hello.  I recently pieced together a late 2008 MacBook Pro 15".  Everything works fine except the battery constantly goes between "not charging" and "calculating" or, rarely "charging". It does charge after a long while and will report that it is charged.
    I have reset the NVRAM and the SMC a couple of time but that didn't work so I ran an Apple Hardware Test and while testing the logic board it gives the following error:
    4SNS/1/40000000 LB1T
    I've done some research and found this is a temperature sensor related to the battery, but cannot find where the sensor is located in the computer.  Would you know how I can find the sensor to test it?  Could my battery problem be related to something else?  Would a fresh install of Lion help?
    Thank you!
    Mike
    Two pieces of information that may or may not b helpful, the hard drive is from my early 2008 MBP and the only test disc I have access to is from an iMac.

    Why do you have LION installed on that older machine?
    So you say you built a macbook from a bucket of parts eh?   Kudos
    heres a pic of the battery temp sensor

  • Am using provided AC charger to charge my iPad mini. After a while, I checked the device. The battery is no longer in charge mode. It is only 80% charged. When I touch the AC charger, it is hot. I need to switch off the AC charger to let it cool down bef

    I  am using 2 unit provided AC charger to charge my iPad mini. After a while, I checked the device. The battery is no longer in charge mode. It is only 80% charged. When I touch the AC charger, it is hot. I need to switch off the AC charger to let it cool down before continue to charge my iPad mini again. Of course it will be 100% charge but must make sure the AC charger is cool down completely. 
    I feel that the provided AC charger that is not suitable for our charging on iPad mini.

    I would book an appointment at an Apple Store, if you have one nearby, to have it looked at.
    Genius Bar: Preparing for Your Apple Store Appointment

  • After full charge i can use my macbook only for 2hrs and after 20 min my battery percentage decrease from 100% to 87% and it will happend every 20 min .. pls help me

    after full charge i can use my macbook only for 2hrs and after 20 min my battery percentage decrease from 100% to 87% and it will happend every 20 min .. pls help me

    Hi,
    How old is your MBP? how many cycle batter do have ?
    I will also recomend to use the software http://www.macupdate.com/app/mac/24141/battery-health-monitor
    to monitor battery life.
    You should be able to read everything from the software.
    Please post results.
    Regards,
    Mirek

  • My iphone 5 battery drains pretty quickly on 3G and when I charge it, the battery will never be fully charged to 100%. Why is that?

    The battery when charged it will only reach 93%. When i reboot the phone the battery percentage will indicate 97-98% but the battery usage timer has been reset since the battery did not reach 100%. Why is that?

    I have the same problem with less than 1 mo old iphone 5 ios 6.1. I charged over night which is over 7 hrs and still not 100%

  • Why is the battery percentage on my iPhone 4S on iOS7 freezing then dropping in big 10/20% chunks?

    Since upgrading to iOS7 my 4s has been having issues with battery meter. Take today for instance, it fell steadily to 59% then dropped instantly to 39% (I was not using any apps at the time). It has now been stuck on 32% for over half an hour, I've taken photos, used YouTube and other apps in an attempt to drain it but no change.
    I've turned off all unnecessary processes, including location services and background refresh to eliminate drain. System status meter shows processor operating at 10% when no apps open so it doesn't look like background processes are draining.
    I can't rely on the battery meter when it isn't accurate, it could suddenly drop to 5% or similar without warning.
    Is anyone else having these problems?  Any ideas Apple?
    It's going to render my phone untrustworthy and inaccurate.

    Hi!
    I am having similar issue.
    I have upgraded my iPhone 4s to the new iOS 7 and since then my battery indicator is stucked at 44%. Now regardless how much I charge or how much I use, it is showing the same battery level.
    Although this get refreshed when I restart the iPhone and it shows the current battery level and then again stucks at the same percentage. This was working fine on iOS 6.1.3, but is showing issues after the upgrade.
    I have tried to restore it, reset settings by selecting Erase All Content and Settings, hard reset (power+home button for 10 sec) but still no good, it shows the same level of battery percentage at which it is since last reboot.
    Although I was having iOS 6.1.3 ispw so I downgraded it again as Apple was signing iOS 6.1.3 at that time. Now the battery percentage is working fine. Therefore its not a hardware issue for sure and is just some bug with iOS 7.
    Now I have again upgraded to iOS 7.0.3, and I am facing the same issue again. And now I can't even downgrade to iOS 6.1.3.
    If you get some tips on how to solve this, then please share the same.

  • Why doesn't my phone charge? I changed the battery, now it won't charge at all and it's almost dead.. Any suggestions on how to fix it?

    Why doesn't my phone charge? I changed the battery, now it won't charge... Any suggestions on how to fix it?

    iMessage and FaceTime went down yesterday for some people. Mine is still down. My iMessage is saying the same thing about being activated. Sounds like you are still down too. Ignore the status page that says everything is fine - it lies.

  • Why us don´t add the battery percentage on the iPod Touch?

    Why us don´t add the battery percentage on the iPod Touch?

    Apple has not said why. The terms of use for this Apple forum prohibit discussion about:
    Discussions of Apple policies or procedures or speculation on Apple decisions.

  • Hi there, i have a ipod nano general 7, just used one year. Now can't charge battery. When charging, the icon shows full power, but disconnect it. It becomes dark, no power. Why, the battery doesn't work ?

    I've a ipod nano general 7, I've just used it one year. Now, I can't charge the battery. When charging, the icon shows full power. But when I disconnect, the ipod becomes dark, no power is keeped. Why, the battery doesn't work ? the life of my ipod's battery is too short ? 

    Howdy tamsg,
    Welcome to Apple Support Communities.
    The article linked below provides a lot of great troubleshooting tips that can help you resolve the issue with your iPod nano charging or displaying a blank black screen.
    iPod nano (7th generation): Hardware troubleshooting - Apple Support
    So long,
    -Jason

  • TS3274 The battery percentage on my iPad won't go up?

    I plugged my iPad in the charger, but the battery percentage stays at 2%. Ive always used ths charger, it was just suddenly today?

    The charger may have failed. Take it to the Apple Store for evaluation.
    The quickest way (and really the only way) to charge your iPad is with the included 10W 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 (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
    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
    Tips About Charging for New iPad 3
    http://goodscool-electronics.blogspot.com/2012/04/tips-about-charging-for-new-ip ad-3.html
    Prolong battery lifespan for iPad / iPad 2 / iPad 3: charging tips
    http://thehowto.wikidot.com/prolong-battery-lifespan-for-ipad
    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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