How do I perform a charge cycle?

Is it really necessary? I mean batteries need to be replaced someday.
How many charge cycles does an iPad have??

Calibration?
Run your iPad battery from 100% down to 0%
Do it once a month for accurate reporting of battery status.

Similar Messages

  • Charge cycle??

    I'm a new mac user and I want to take care of my macbook as much as possible. Can someone explain exactly what a charge cycle is and how its done..

    A charge cycle is the equivalent of a full discharge and full recharge of the battery. The discharge can be cumulative over several less-than-full-discharges of the battery. For example if you discharge the battery 50% then recharge it, then discharge it another 50% and recharge it that's the equivalent of one full cycle.
    About Batteries in Modern Apple Laptops
    Apple - Batteries - Notebooks
    Extending the Life of Your Laptop Battery
    Apple - Batteries
    Determining Battery Cycle Count
    Calibrating your computer's battery for best performance
    MacBook and MacBook Pro- Mac reduces processor speed when battery is removed while operating from an A-C adaptor
    Battery University

  • HT1476 How often the charging cycle to be done before the replacement of the battey. Likewise, is it ok to use the iphone while charging such as playing and watching movies. Please give me a reliable answer because this is my first time to use iphone.

    Is it ok to use iphone while charging? Such as playing and wathing videos, or performing internet? How often the charging cycle to be done before the replacement of the battery? Can u please give me reliable answer because this is my first time to use iphone. I've wondering about the battery, since its built-in i wanted to care about the battery.

    Roelt wrote:
    Is it ok to use iphone while charging? Such as playing and wathing videos, or performing internet? ...
    Yes.
    How often the charging cycle to be done before the replacement of the battery?
    Read this:
    http://www.apple.com/batteries/iphone.html

  • HT1490 After how many charging cycles do I need to replace the baterie

    After how many charging cycles do I need to replace the baterie

    Please see below my system overview
    MacBook Pro
    13-inch, Mid 2010
    Processor  2.4 GHz Intel Core 2 Duo
    Memory  4 GB 1067 MHz DDR3
    Graphics  NVIDIA GeForce 320M 256 MB
    Serial Number  730504Z5ATM
    Software  Mac OS X Lion 10.7.3 (11D50b)

  • How does Mac OS calculate the charging Cycle count?

    Hello, Guys
    How does Mac OS calculate the charging Cycle count? I just used my MBP for about 15 min without power plugged in and I saw it left about 90% battery. However after the battery be recharged, I checked system profiler. It shows charging cycle count increased 1. I do remember that last time I left almost the same percentage of battery and plugged in. After the battery was fully charged, profiler did show cycle count increased.
    So I am wondering How does Mac OS calculate the charging Cycle count? Basing on the percentage left or something else?
    Thanks,

    Ok,
    But does it count continuously or separatly? I mean One time I used 10% and recharged full; and next time I used 20% and fully recharged again. Does the OS increase the cycle count when the usage adds up to 100% no matter how many times of recharge?
    Thanks,

  • To find out how many charge cycles...

    How can i find out with the Terminal how many charge cycles my battery has done?

    Hi, If you go to:
    - About this mac
    - More info
    - select power, from the contents
    - and look under battery information you should see your cycle count.
    Regards

  • How do i prevent or lessen a charge cycle to complete?

    (i'm using coconut battery)please help me my mac has already 34 load cycles
    13 weeks old
    how do i avoid completing many charge cycle
    ....please help

    A load cycle is one 100% discharge and recharge of the battery. This can happen all at once, that is, draining your battery to 0% and then recharging it to 100%. Or it can happen cumulatively, for example, discharging your battery to 80% five times, or to 50% twice, or to 75% once and then 25% the next time, and so on.
    You can minimize the battery drain by doing less when you are unplugged: turn the brightness on your screen down, turn off bluetooth and/or airport, avoid games or videos that will draw a lot of power to process.
    The easiest way to avoid adding cycles is to leave your MacBook plugged in when power is handy. It is okay to leave your MacBook plugged in even when the battery is charged to 100%.
    Obviously, you cannot do this 24/7 for the life of your MacBook; it is a portable and intended to be used off AC power on occasion. So exercise the battery regularly and calibrate it fully (let it discharge until it goes into hybernate mode, leave it for five or more hours, and then charge it fully to 100%) every month or two.
    If you have 34 cycles in ~100 days, you are averaging one cycle every three days, which is not that bad. But the more you leave it plugged in, the fewer cycles you will accumulate.

  • HOW MANY HOURS DID YOU CHARGE YOUR iPHONE FOR THE 1ST TIME OUT OF THE BOX?

    As the title says.
    And how soon does the battery start to finish when watching YouTube after a FULL CHARGE?
    I can watch abt 3 or 4 videos (between 2 to 10 mins long each) + searching youtube for a minute or two before I notice the FULL BATTERY starts to drain :S
    So in total lets say after 15 minutes my battery starts to go down.
    Is that normal? or is something wrong with my battery?

    I provide you a link yesterday with this and other information about the battery which answers this question so here it is again.
    http://www.apple.com/batteries/
    +Lithium-ion batteries pack in a higher power density than nickel-based batteries. This gives you a longer battery life in a lighter package, as lithium is the lightest metal. *You can also recharge a lithium-ion battery whenever convenient, without the full charge or discharge cycle necessary to keep nickel-based batteries at peak performance.*+
    Charging an iPhone battery for 15 hours doesn't accomplish anything. After the battery reaches 80%, it reverts to a trickle charge for the remaining and when at 100%, charging stops. Charging can't go past 100%.
    http://www.apple.com/batteries/iphone.html

  • My battery is at 516 charge cycles, charge capacity of 4129. Is it defective?

    My Macbook is a late 2009 white 13" unibody model, and I understand that it should withstand up to 1000 charge cycles.  I am only at 516 charge cycles, yet my battery life is dwindling, lasting approximately half as long as it did when new.  I've seen it drop from lasting for five or six hours with normal use to two or three hours with normal use just in the past few months.  System profiler says its full capacity is 4129 mAh; this is after I reset the SMC and calibrated the battery in an attempt to fix my problem.  It charges to the indicated capacity but as I said, lasts nowhere near as long as one would expect.  I remember its capacity being around 5100 when I first purchased my Macbook in April of 2010.
    Obviously the laptop is out of warranty - not like it matters, since batteries aren't covered.  What I was wondering is if this battery would be considered defective considering it has only lasted half as long as it "should" according to Apple's standards.

    My charge cycles reflect daily use, and I can't imagine how it is excessive.  I guess it might be, but I use it as I think a laptop is intended to be used.  I don't leave it plugged in all day; I make use of its portablility and run it on battery at least half of the time.  I usually plug it in before the battery reaches 20% as recommended by Apple, but it has on a few occasions been completely drained.  I don't think my use is extraordinary.
    Since posting this my laptop has fully recharged after the calibration, and its status has changed.  It used to say that my battery condition was "service needed" (which is what prompted me to look at how it's been performing) but now the stats read as follows.  Even the capacity changed, which is interesting.  I guess recalibrating the battery removed the service warning, so I'll see how long it lasts off the battery alone over the next few days.
    Battery Information:
      Charge Information:
      Charge Remaining (mAh):          4526
      Fully Charged:          Yes
      Charging:          No
      Full Charge Capacity (mAh):          4527
      Health Information:
      Cycle Count:          516
      Condition:          Normal
      Battery Installed:          Yes
      Amperage (mA):          -203
      Voltage (mV):          12423

  • Satellite Windows 8 laptop will no longer boot up after performing a power cycle

    I have a Satellite C855-55107 laptop. It had been working fine, and one day starting this problem: When booting up, it would bring the desktop screen up, and would not let me get to the sign in screen. I went to the Troubleshooting Help here and performed a power cycle. Now, it won't even boot up. The power is working fine. What do I need to do, and what do you think caused the original problem?

    Hi! bec! I don't run W8. You could have picked up a Virus ect. Hard to really tell. There will be better replies during the week. I would restore back to factory.If you were infected, that should cure that problem. You could also make a system repair disk and try to boot with it. It can be made with any computer that is running W8. If you don't have that option, I guess it's back to factory.
    http://forums.toshiba.com/t5/System-Recovery-and-Recovery/Creating-a-System-Repair-Disc-for-Windows-...
    THROUGH F12 AT STARTUP  
    To access the System Restore, Refresh and Reset options using the F12 option at startup, perform the following:
    If not already, ensure the computer is completely shut down. How To: Shut Down a Laptop with Windows 8
    Now restart the computer by pressing the power button - IMMEDIATELY start tapping the F12 key on the keyboard until the "Boot Menu" screen appears.
    Using the arrow keys, select <HDD Recovery> and press "Enter".
    On the next screen you are asked to confirm if you want to contiue with recovery. Select "Yes".
    The computer will bring you to the Advanced startup screen.
    Select Troubleshoot. Under Troubleshoot you will see “Refresh” and “Reset”.
    Select “Advanced options.” Located here is "System Restore."
    Plese read this carefully.
    http://forums.toshiba.com/t5/Windows-8-Knowledge-Base/How-To-Shut-Down-a-Laptop-with-Windows-8/ta-p/...
    I Love my Satellite L775D-S7222 Laptop. Some days you're the windshield, Some days you're the bug. The Computer world is crazy. If you have answers to computer problems, pass them forward.

  • How do I perform a clean install of Lion Server?

    There seem to be many sites documenting how to pull out the ESD image and burn a bootable copy of Lion.
    What I'd like to know is how do I perform a clean installation of Lion Server?
    Is it possible to just install Lion and then open the App Store and install from Purchase without being charged again?

    Okay....so Apple does have a guide related to Mass deployment which includes a rough way to do a clean OS X Server clean install. You need to use a NetBoot Lion Server as a boot, but it works.
    http://support.apple.com/kb/HT4746
    Use these steps to create a NetRestore image of an un-configured Lion Server:
    Install OS X Lion, and then Lion Server. This server will be used to create the NetRestore image.
    On the server, install the app named "Install Mac OS X Lion" from the Mac App Store (a network connection is required for this process).
    Install the Server Admin Tools from http://support.apple.com/downloads/ on the server.
    Open the "Install Mac OS X Lion" application, and install to an empty volume. This volume can be a spare partition or external hard drive. Be sure to click the Customize button and to select the Lion Server software.
    Once installation is complete, the server will restart from the newly installed volume.  Instead of completing the setup assistant, press Command-Q to quit the assistant.
    Select the option to shut the server down.
    Restart the server and hold the Option key.
    When the Startup Manager appears, select the volume which you've already configured Lion Server on.
    Open System Image Utility and create a NetRestore image from the newly installed (and still un-configured) volume. If you'd prefer to image the volume after it has already been configured, you can proceed with the setup assistant before booting back to the original installation created in step 1.

  • Can someone explain this chart about Li-ion charge cycles to me

    I consider myself a pretty smart guy, but i couldn't figure this out. I'm thinking that apple just provided this graph without any real explanation of what it means. I'm talking about the one on .. http://www.apple.com/batteries/ that has a caption starting with "Charge Cycle." They provide a general explanation of cycles below, but don't seem to address the same thing the illustration they provided does. What does the 40% 20% 30% 20% 50% 60% mean? Why is "1 Cycle" in the middle and what is the difference between cycle 0-1 and 1-2. basically that illustration makes no sense to me and i'd love for someone to explain it

    That charge is telling you how the charger charges the battery. The voltage charge is the green line and the amperage is the orange line. Voltage goes up to its full extent in the first couple of hours. The amperage starts at full charge strength and goes down as the batery charges so it will not overheat the battery. The most important thing to know about charging a Li (Lithium-ion) battery is that it has two different charge times, quick and full. most Li batteries get about an 80% charge at the quick charge time and 100% charge at the full charge time. when you first charge any rechargable battery make sure you do a full charge and then a full discharge with another full charge afterward. If you do not do this the life of the batery will be significantly diminished.
    I hope this information helps. If you want more information in this subject ask a more direct question.

  • What exactly is a charge cycle?

    Hi, everyone! So I recently just bought a MacBook Pro with Retina display (about 4 days ago) and I'm really trying to take of it, and it's battery especially. I've tried looking up some information on the best ways to take care of it, and I always come across people taking about things like "charging cycles" and "calibrating the battery" and I have absolutely no idea what those mean!
    I don't mean to sound like an idiot, but keep in mind that I am completely new to the world of MacBooks. I've tried to research what these terms mean, but I've found nothing.
    Please help and give me advice on how to properly take care of my precious MacBook Pro. I adore it so much and I want it to last as long as possible.
    Thank you so much!

    despite anything Apple.com has listed, the lithium-polymer battery is a KNOWN entity and its technical behaviour is a known entity, regardless of inside an Apple product or not...
    having it plugged in everytime you use it is one thing, ....but some leave it plugged in 24/7 ALL THE TIME,...not a good idea,.....no hard, it just doesnt do the battery any good, and does minor wear on its lifespan.
    Exactly lIke permanent magnets..., lithium polymer batteries dont like HEAT ,......perpetual trickle charging (leaving it plugged in alllll time time) is the unwise choice.      "
    "trickle charging is NEVER recommended for lithium polymer batteries" ---  PowerStream.com, 2010-03-17

  • Adapter/charge cycle question

    Sorry for all the questions. This will be my last one.
    I use my iPod with a FM transmitter a lot at home and in the car while having it connected to the adapter. Does using the adapter still count as a charge cycle?. Say, hypothetically, I use the iPod + adapter for 15 hours straight, is that still one cycle even if the adapter is keeping the battery fully charged.

    As far as I have read, 'top-off' charges are not detrimental to the iPod and may extend the life more than depleting the battery. Always 'exercise' the iPod from time to time.
    See these battery links for more info. The first two articles are quite informative:
    The iPod Battery Unplugged..
    How to Prolong Lithium-Based Batteries
    iPod Service & Support: Charging Your iPod
    iPod Battery FAQ
    Apple – iPod Battery
    iPod Battery Frequently Asked Questions (FAQ)
    Caring for iPod's Battery
    Charging iPod's Internal Battery
    Tips and Tricks to get the Most out of Your iPod's Battery
    Using the iPod Hold Switch to Prolong Battery Life
    iPod's Battery Doesn't Charge
    The Truth About the iPod Battery and Charging
    Apple: Lithium-ion Batteries
    iPod's Battery Indicator is Approximate / Battery Test

  • How often should I be charging macbook?

    I just got my macbook for college yesterday and I have had it charging constantly since I have not left the house with it. (I don't leave for college till next friday).
    Is it bad to have it plugged into the wall at all times or should I let it die then charge it and repeat?
    I just don't want to burn out the battery or anything.
    Thanks.

    It can be connected to the charger forever. The charging circuit shuts down automatically once the battery is fully charged. Recharging will not occur until the charge level drops below 95%.
    The battery will not "burn out" but it does have a finite life of roughly 500 full discharge-recharge cycles. Use System Profiler and select Power to keep track of the number of charge cycles and overall battery condition.
    About Batteries in Modern Apple Laptops
    Apple - Batteries - Notebooks
    Extending the Life of Your Laptop Battery
    Apple - Batteries
    Determining Battery Cycle Count
    Calibrating your computer's battery for best performance
    Battery University

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