Have I killed my battery?

Ipod 30gb approximately 4 months old -- I mostly play it in a docking speaker at work, so it's constantly charged. I brought it home tonight and the battery indicater was full (as expected), but it died before I even got the first song to play. Now I have monochromatic empty battery icon in the middle of the screen -- has been plugged into PC for over an hour with no response. I can't reset -- can't mount -- nothing.
Have I cooked the battery by keeping it in a charging dock most of the time? How do I now get it back so it's functional again?
Dell Dimension 8300 Windows XP

It's hard to say if it's something that you did to the iPod, or if your iPod just had a bad battery to begin with. If you can't get your iPod's battery to hold on to a charge, and your iPod is only a few months old (it's still under warranty) set it up for repair under the warranty.
http://depot.info.apple.com/ipod
Hope this helps
CG

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HT1222 The new iOS 7 update is killing the battery in my iPad. I have checked online and taken measure indicted to help this - but the battery is dead within hours. I am very frustrated. Can I undo this update??

The new software update - iOS 7.0.2 is killing the battery in my iPad. I have searched online and taken the recommended measures to decrease battery use, but within hours my iPad is completely dead. It would take days to kill the battery before this update. I am very frustrated. Can I undo this update???

This typically happens when some apps on the phone were interrupted by the upgrade. When it comes back up the app tries to resume and can not. You have to find and kill that app(s).
Do you have an Exchange account?
That is usually the culprit. Go into Settings and turn off all of the toggles for the Exchange account. Then reset the phone (hold the Sleep/Wake and Home buttons and don’t let go until the screen goes dark and the Apple logo appears). When the phone powers back on, turn the toggles back on.
Do the same for all mail accounts if you don't have Exchange or that doesn't resolve the issue.
If it is not Exchange/Mail then it could be another app(s).
With iOS 7 you can control what apps run in the background. Go to Settings > General > Background App Refresh. This will list all of the apps that can run in background. Turn them all off and restart. If this fixes the problem turn on a few at a time until you find the one causing the trouble.

Help!! - Yosemite/FileVault Disaster Killing my Battery

How do I stop FileVault after enabling it during Yosemite installation? It is saying it will take a YEAR to encrypt my files. I have 220 GB of content, apps etc included, on my computer.
Looks like the process has stalled but it keeps trying to proceed with the result that my battery is overheating and drains down very quickly. FileVault is literally killing my battery.
Having reviewed some posts here, I tried the Command-Option-P-R technique to reset RAM during restart (to no avail), and Disk Utility cannot switch off the encryption (option to do so is grayed out).
Looking at Activity Monitor, I see that something called SystemUIServer is using 60% of CPU.
MY QUESTIONS: Is there anything I can "Force Quit" to stop FileVault? If not, can I reinstall Yosemite without enabling FileVault? If so, how do I do that? (I upgraded to Yosemite via the Mac App Store.)

If not, can I reinstall Yosemite without enabling FileVault? If so, how do I do that? (I upgraded to Yosemite via the Mac App Store.)
You do not have to enable File Vault. Do a backup. Boot to the Recovery Volume (command - R on a restart or hold down the option key during a restart and select Recovery Volume). Run Disk Utility Verify/Repair and Repair Permissions until you get no errors. Then re-install the OS.
OS X Recovery
OS X Recovery (2)

Some app is going to kill my battery

when there are no app running with multi-task view, my iP5'battery (7.1.2) went from 65% to 16% after night.
I think some app is killing my battery with keeping connection to internet, I'm not sure if it is skype!!!
the loading icon always shows while I have do nothing with my iP. Al

well i see you have a whole raft of social media apps running - i'd suggest going to settings/general/background app refressh and turning off background app resfresh for all these type of apps - facebook is a known culprit and i am sure the others are no different.
also see https://www.apple.com/batteries/iphone.html
and
http://www.overthought.org/blog/2014/the-ultimate-guide-to-solving-ios-battery-d rain which is a really impressive guide

My MacBook Pro is really hot and the fan is on constantly. It didn't use to do this, does anyone know why this is happening? I have a very short battery life, so I have to keep it plugged in probably more than I should.

My MacBook Pro is really hot and the fan is on constantly. It didn't use to do this, does anyone know why this is happening? I have a very short battery life, so I have to keep it plugged in probably more than I should.

Open Activity Monitor in the Utilities folder. Select All Processes from the Processes dropdown menu. Click twice on the CPU% column header to display in descending order. If you find a process using a large amount of CPU time, then select the process and click on the Quit icon in the toolbar. Click on the Force Quit button to kill the process. See if that helps. Be sure to note the name of the runaway process so you can track down the cause of the problem.

Calendar Notifications / Alerts / Reminders killing my battery

I haven't found any comments on this specifically....
I have noticed that if I leave a calendar notification/reminder on the screen, my battery dies very rapidly. With the phone in airplane mode, a notification on the screen seems to kill the battery in 6-8 hours (maybe less). If I disable notifications and leave the phone in airplane mode, the battery drops only ~ 5-10% in 6-8 hours.
It looks like pulseaudio, mediaserver, and LunaSysMgr are all pretty active while the notificaiton is on the screen. (I left top running before a notification appeared so I could see what was going on.)
Has anyone else seen this? Perhaps it is well-known and I am missing it in my searches.
Post relates to: Pre p100eww (Sprint)

I saw this before the most recent update. I had noticed that my battery life was generally better on weekends than during the week. It has always been that way. One big difference is that I tend to have a lot of calendar appointments during the work day, and I don't always dismiss them.
In the process of looking at possible improvements (kernels, etc.), I happened to leave Govnah open and noticed that the CPU was running at the higher/max frequency all the time when I had the "on demand" governer enabled when I turned on my phone and there was a notification/reminder on the screen. As soon as I dismissed it, the frequency went down.
So, I went back to the default config and left top running and noticed pulseaudio was running, etc.. With the "normal" / default kernel running, I see the same behavior -- my battery dies very quickly if I leave notifications on the screen (even with the phone in airplane mode).
To clarify... airplane mode is not required to see the issue. I only enabled that as a debug step to eliminate differences due to being connected to a network, etc.. This issuce occurs in airplane mode or when connected to 3G, etc..

IOS 7 kills 4S battery

I updated to iOS 7 last night on my 4S.
Now, I have Push/Location/Bluetooth/Wi-fi/Siri/Background tasks completely turned off, yet I'm loosing 1% of battery *every minute* and the phone is really hot (even if it's sitting idle with screen turned off next to me on my desk). This litteraly means 100 minutes of battery life!
Battery life was already lousy with 6.1.3, and now it's even worse. And here I was thinking iOS 7 would fix this.
What's the point of having a smart phone is you have to turn off 90% of the features to squeeze out just a few hours of battery life?
Aside from the obvious wiping/install as new phone, what can I do?

I have found that when I close as many apps in control center as possible, it seems to conserve battery.
Charging the device to an outlet without using it for 48 hours seems to restores lenght of battery.
Portable battery recharging is not enough electric current to extract energy. Unlike older cell phones that killed the battery if it was plugged in to an outlet all the time, smart phones need power.
I have made a habit to close out all apps before i turn off devices which speeds up all my functions when I repower.
Remember to go to settings and delete cookies, unwanted data and history. This will save data fees and disk storage. Get rid of stuff like ancient music, bookmarks and old photos.
Also backup mobile device to computer, not just to icloud save data storage, battery and you can recover information easier.
A word about devices and car charges:
Also don't leave your car charger connected in the car it drains the car battery even if car is not running.
I learned the hard way on this tip
Be adivsed I am not a tech specialist but have used these methods and have found them to work. Logic behind this method is that less the device has to keep memorized as open the less energy it will use. Smart phones are mini computers jamming all our needs into a tiny drive.

Does charging your computer too long really kill the battery?

Does charging your computer too long really kill the battery? I have some friends who claim this happened to thair PCs, and my friend's iBook G4 has about ~3 minutes of battery life because of this. Has Apple fixed this in later models or should I still only charge it until just as long as it takes for it to get filled up?

Mac power management is now, and always has been, very smart. The Mac does not over-charge its battery.
Batteries have a limited lifetime, and they eventually wear out whether they are charged daily or never charged at all. Your friend's G4 battery, if original, has lasted a very long time. It is not dying due to over-charging, it is dying due to old age.
For longest battery life, follow the recommendations in the article shldr2thewheel cited above.

Does leaving an Ipod pluged in kill the battery?

I have a dock/speaker combination for my ipod. I use the ipod with these speakers as an alarm clock, so i have to leave the speakers plugged in all night. Does leaving the ipod plugged in like this kill the battery? in some places ive heard that it does, but in others ive heard that it doesnt have that big of an effect at all. Which is it?

In fact, as long as your iPod isn't hot, the battery likes being topped up.
<TABLE CELLPADDING=0 CELLSPACING=0 WIDTH=100%><TR><TD>Hope this helps
Dave</TD><TD ALIGN="RIGHT">U</TD></TR></TABLE>

Hacker problems so I reloaded Snow Leopard. Afterwards, Mac had to delete 798 items. Now looping on 4 items to delete for the past 2 weeks. Can't reboot, reload, or restart. I have to let the battery run down for it to turn off. How to fix this, please?

I had hacker problems so I reloaded Snow Leopard. Afterwards, Mac had to delete 798 items. Now it is looping on 4 items to delete for the past 2 weeks. I can't reboot, reload, or restart. I have to let the battery run down for it to turn off. I think a big part of the problem is that someon one the internet (the hacker) was mirroring my hard drive. It seems to have locked up my system. I could be wrong about this guess, though. All I do know is that it is now looping on the last 4 iems, and I can't do anything.
Well, I can get it to turn on, but all it does is continously try to delete the last 4 items. When I try to reload Snow Leopard, it tells me my hard drive is full and that I need to delete items.
Can anyone help? I am so lost without my Mac. I am back on the PC, and though it works, I'm sure many of you will understand when I say it's just not a Mac.
Thanks.

I installed Snow Leopard using my Apple external Superdrive. I followed directions I found on the Apple site. Here is the article info: Mac OS X v10.6 Snow Leopard: How to Erase and Install
                 Article HT3910
                 located at: http://support.apple.com/kb/HT3910
Everything was going smoothly until I got to the reinstall part. I had to choose to reinstall on a hard drive or network drive. I've never used a network drive; just the hard drive. It seems that's where the troubles began. I selected the hard drive. It seemed to go well, and then I got the message that I needed to delete some files because I was out of space. I chose to get rid of my music files, but, there were only 636. I don't know what the rest of the files were. I was using the Secure Empty Trash command.
That was my first time doing an erase and install. I tried to do it again, but I now get a continuous error telling me that my hard drive is full and I must delete files. Only I can't delete files because 4 files are still being deleted and my computer won't let me stop the process.
I found out about the hackers mostly by the fact that whenever I used to watch something like Hulu or Netflix, I never had problems with internet connection or speed. Lately, I had internet connection problems. I went in to check my settings for my internet provider and found out the settings had been changed to public and all these extra computers were connected to my network.

I have pluged a portable battery to the USB and my macbook pro stopped working after that, right before it shut down there was a message on the screen that said something like " USB device is withdrawing so much power, please disconnect and connect again?

I have plugged a portable battery to the USB and my macbook pro stopped working after that, right before it shut down there was a message on the screen that said something like " USB device is withdrawing so much power, please disconnect and connect again?
if the device I connected have caused this, shouldn't the macbook itself have some type of protection that should prevent this from happening.
because when I took it to an apple certified maintenance shop, the guy said that now it could only run while connected to the power. it won't run on batteries. and that I have to change the motherboard.
can I just replace the damaged part only, would apple consider this as a design issue and they could pay for it, or should I just buy a new motherboard for 800$.
Help.

BB1B2,
The problem is in finding a tech shop that will/can do board level repairs on Macs. They are few. And I certainly wouldn't spend $800 on a new logic board - I would replace the computer if I had to pay that much!
You could call around to a few repair shops and see if they feel competent to isolate the problem and do a board level repair - but I'm afraid, in the end, that your search will be futile.
Sorry,
Clinton

After uploading our phones with the latest update, we have noticed that the battery life has deminished considerably. I now have to charge my phone overnight and two or three times a day. Prior to the update, my battery life lasted me at least a full day

After uploading our phones with the latest update, we have noticed that the battery life has deminished considerably. I now have to charge my phone overnight and two or three times a day. Prior to the update, my battery life lasted me at least a full day. We have several phones in our office and the ones that have updated (4) now have issue holding a charge/battery life. I really liked this phone and can not believe that you are now going to charge us $79 a battery to fix what is most definately a problem with your latest update. I know other people outside of our company that are having the same problem. Not to mention when I called AT&T it was confirmed to me that they are hearing the same issue and then some from other customers as well. Your own people, once I talked to them earlier today, told me they are showing a history of issues that are showing up after the update was put in place. Of course she tried to say, "Maybe the age of the battery and the update both contributed". Whatever.
I want you all to know how disappointed I am in your company for the handling of this issue. I always thought "Apple" was the line I didn't have to worry about having any types of issue. And that you all would stand behined your product 100%. Now I am not so sure.
I would love to hear back from your company on how you perceive the issue with all of these phones that prior to the update didn't have any issues and how after the update THEY ARE NOW having issues. I do not believe this was an issue due to the age of a battery and that was pretty lame to say so. It was fine and now its not.
Please feel free to contact me and help me figure out a way to pay for all of the batteries that will be needed for our company to contiue doing business as needed.
Thank you.
Web Address (URL):
5106 McNarney

Sorry this is a user to user technical forum. There is NO APPLE here as stated in the term of use when you signed up for this forum.
here are some battery tips
http://osxdaily.com/2013/09/19/ios-7-battery-life-fix/
http://www.apple.com/batteries/iphone.html

My battery needs service as it is not working for long. Apple claims it is not a defective battery and that it is my fault since I had the computer for 2 1/2 years and have only run the battery down to empty 100 times. It is my fault because I did no

Con't
Apple claims that because I did not drain my battery frequently and kept it plugged in for extended periods of time, that it is my fault the battery is failing. I disagree because I was not ever told to consistently drain my battery before recharging or not to keep it on and plugs in for extended periods of time. I do keep my desktop computer on most of the time and that is why I have kept my Macbook air on for extended time periods. I feel that Applecare should cover this battey issue and not charge me for replacing the battey. I feel I should have been told to not keep my computer consistently running on with poweror the battery will fail. Has anyone had this problem? Apple should replace my battery under Apple care as my battery does not keep a charge anymore.
I'll wait to hear.

You said---Apple claims that because I did not drain my battery frequently
You said--- I was not ever told to consistently drain my battery before recharging
You should never do that on purpose, whoever told you that had it wrong or you misunderstood something
Sure you dont have that backwards? thats exactly what you DONT want to do.
Did you often drain the battery very low? that would explain a lot.
Someone might have been misinformed about "battery calibration" regarding much older Macs with removable batteries (see bottom)
You said-----I do keep my desktop computer on most of the time and that is why I have kept my Macbook air on for extended time periods.
thats a problem there, youre not supposed to do that.
Keeping batteries connected to a charger ensures that periodic "top-ups" do very minor but continuous damage to individual cells, hence Apples recommendation above:   “Apple does not recommend leaving your portable plugged in all the time”, …this is because “Li-ion degrades fastest at high state-of-charge”.
                    This is also the same reason new Apple notebooks are packaged with 50% charges and not 100%.
http://www.apple.com/batteries/notebooks.html
"Apple does not recommend leaving your portable plugged in all the time."
*If you don’t plan on using it for a few hours, turn it OFF (plugged in or otherwise) ..*You don’t want your Macbook both always plugged in AND in sleep mode       (When portable devices are charging and in the on or sleep position, the current that is drawn through the device is called the parasitic load and will alter the dynamics of charge cycle. Battery manufacturers advise against parasitic loading because it induces mini-cycles.)
Keep it plugged in when near a socket so you keep the charging cycles down on your LiPo (lithium polymer) cells / battery, but not plugged in all the time. When not being used for several hours, turn it off.
And best "tip" is if its near a socket,...plug it in as long as you can (especially at home) since cycle count on the battery are the "miles that wear out the tires (battery)", however again, not plugged in all or most of the time.
General rule to remember of Lithium batteries is:
Never drain them LOW & dont always/often store them HIGH
While cycle count is commonly seen to be the “miles” on your Lithium Ion pack cell in your Macbook, which they are, this distinction is not a fine line at all, and it is a big misconception to “count charge cycles”
*A person who has, for example, 300 charge cycles on their battery and is recharging at say 50-60% remaining of a 100% charge has better battery usage and care than another person who has 300 charge cycles at say 15% remaining on a 100% charge.
DoD (depth of discharge) is far more important on the wear and tear on your Macbook battery than any mere charge cycle count. *There is no set “mile” or wear from a charge cycle in general OR in specific.    As such, contrary to popular conception, counting cycles is not conclusive whatsoever, rather the amount of deep DoD on an averaged scale of its use and charging conditions.
                          (as a very rough analogy would be 20,000 hard miles put on a car vs. 80,000 good miles being something similar)
*Contrary to some myths out there, there is protection circuitry in your Macbook and therefore you cannot overcharge it when plugged in and already fully charged
LiPo (lithium polymer, same as in your Macbook) batteries do not need conditioning. However...
A lot of battery experts call the use of Lithium cells the "80% Rule" ...meaning use 80% of the charge or so, then recharge them for longer overall life.
Never let your Macbook go into shutdown and safe mode from loss of power, you can corrupt files that way, and the batteries do not like it.
The only quantified abuse seen to Lithium cells are instances when often the cells are repeatedly drained very low…. key word being "often"
Contrary to what some might say, Lithium batteries have an "ideal" break in period. First ten cycles or so, don't discharge down past 40% of the battery's capacity. Same way you don’t take a new car out and speed and rev the engine hard first 100 or so miles.
Proper treatment is still important. Just because LiPo batteries don’t need conditioning in general, does NOT mean they dont have an ideal use / recharge environment. Anything can be abused even if it doesn’t need conditioning.
From Apple on batteries:
http://support.apple.com/kb/HT1446
http://www.apple.com/batteries/
Storing your MacBook
If you are going to store your MacBook away for an extended period of time, keep it in a cool location (room temperature roughly 22° C or about 72° F). Make certain you have at least a 50% charge on the internal battery of your Macbook if you plan on storing it away for a few months; recharge your battery to 50% or so every six months roughly if being stored away. If you live in a humid environment, keep your Macbook stored in its zippered case to prevent infiltration of humidity on the internals of your Macbook which could lead to corrosion.
Considerations:
Your battery is subject to chemical aging even if not in use. A Lithium battery is aging as soon as its made, regardless.
In a perfect (although impractical) situation, your lithium battery is best idealized swinging back and forth between 20 and 85% SOC (state of charge) roughly.
Further still how you discharge the battery is far more important than how it is either charged or stored short term, and more important long term that cycle counts.
Ultimately counting charge cycles is of little importance. Abuse in discharging (foremost), charging, and storing the battery and how it affects battery chemistry is important and not the ‘odometer’ reading, or cycle counts on the battery.
Everything boils down to battery chemistry long term, and not an arbitrary number, or cycle count.
Keep your macbook plugged in when near a socket since in the near end of long-term life, this is beneficial to the battery.
Peace
Battery calibration, battery memory, battery overcharging, battery training, …all these concepts are mostly holdovers from much older battery technology, and on older Apple portable Macbooks ranging from early nicads, NiMh and otherwise; and these practices do not apply to your lithium battery and its smart controllers.
Calibrating the battery on older Apple portable Macbooks with removable batteries.
http://support.apple.com/kb/PH14087
There is no calibration of current Apple portable Macbooks with built-in batteries.
http://support.apple.com/ht1490
There is no battery calibration with current Apple portable Macbooks with built-in batteries. Lithium batteries have essentially a 0-‘memory’, and all such calibration involve the estimations fed to the system controller on the SOC (state of charge) of the battery over long periods of time as the battery degrades. The software based battery controller knows the battery's characteristics, or SOC and adjusts itself. This is why there is both no need and purpose to periodically deeply drain your macbook battery, since it doesn’t affect the characteristics of the battery, and further still deep discharges are something you should not do on purpose to any lithium battery.

My iPad 2 is only 7 months old and is draining battery life quickly some days and others shutting off at 40% - 50% and when I turn the iPad back on it keeps turning it self off continuously. I have a feeling the battery could be faulty, what do I do?

My iPad 2 is only 7 months old and is draining battery life quickly some days and others shutting off at 40% - 50% and when I turn the iPad back on it keeps turning it self off continuously. I have a feeling the battery could be faulty, what do I do?

The Basic Troubleshooting Steps are:
Restart... Reset... Restore from Backup... Restore as New...
Restart / Reset
http://support.apple.com/kb/ht1430
Backing up, Updating and Restoring
http://support.apple.com/kb/HT1414
If you try all these Steps and you still have issues... Then a Visit to an Apple Store or AASP (Authorized Apple Service Provider) is the Next Step...
Be sure to make an appointment first...

Mdnsresponder will not quit. Consumes above 100% CPU and kills my battery. Also causes my fan to run constantly and my computer to get extremely hot. Force quitting doesn't work. It just comes back.

The mdnsresponder will not quit. Consumes above 100% CPU and kills my battery. Also causes my fan to run constantly and my computer to get extremely hot. Force quitting doesn't work. It just comes back. I posted about this earlier and never got an answer. Somebody, please help.
Thanks.

mDNSResponder is a background process that runs all the time. If you kill it, it's relaunched automatically.
Please launch the Console application and select "system.log" from the file list. Enter "mDNSResponder" (without the quotes) in the search field. Post a sample of the log messages in the Console window -- only one example of each repeated message, please.

Have I killed my battery?

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