Battery percentage is inaccurate!

Everytime my iPhone 4's battery gets to about the halfway point (with or without the battery percentage on) it dies! It's extremely frustrating thinking you have all this battery left and then having your phone shut off on you. I've reset, restored, and set up as a new phone on iTunes. Any suggestions?
I'm not sure if it's a big enough problem that apple would replace my phone? If they even have any in stock..

Actually, you should make a Genius Bar appointment and have them run diagnostics on your phone. If it's determined the battery is defective, they will replace your phone. It would be worth making an appointment.......

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Battery percentage indicator inaccurate.

My iPhone has started reporting the battery level as being approxmiately 30% higher than it actually is. The result of which being that when the iPhone drops below about 40%, it doesn't have enough power to carry on, and so cuts out. As the hardware "thinks" that the battery level is high enough to perform the task, the iPhone doesn't turn off safely but simply dies.
I have attempted to reset, then drain completely and fully recharge the battery in an attempt to reset the battery meter, but this has failed. I have also restored the iPhone, but again this has not solved my problem. Is there a solution I'm missing, or would it be worth contacting Apple for service?
Thanks,
Alex

You're welcome.
The only other thing you could try is restoring your phone as a "new" device in itunes and not from backup. All saved data on the phone will be lost. However, I suspect this won't make a difference, but might be worth a try. Doing this will eliminate corrupt data on your phone as a possible cause of the problem. I'd still make an appointment at an Apple store.

Droid Turbo Inaccurate Battery Percentage and Fast Draining

As of yesterday, when my Droid Turbo needs to be charged, and I plug it in, the battery percentage will go from 20 percent to 100 percent in under 5 minutes. Then will drain super quick. I spoke with Verizon's Tech Coach who instructed me to clear the partition which was done. I then completed a factory reset, and even tried a different charger to see if it was that and I have the same problem. Has anyone encountered this issue as well?

We want to make sure you have the power, Rip4luv! Are you using the original charger? Does this happen on multiple wall outlets or USB ports? have you recently installed any new applications or updates when this began?
Thank you,
YaleK_VZW
Follow us on Twitter @VZWsupport

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.

Battery % display is inaccurate on my iPad since IOS6.0.1, when will this be fixed?

I find that the battery % display is inaccurate on my iPad since ios6.0.1. Same is happening on my iPod touch. Today my battery was showing as 93%, I stopped the apps, did a power off and on again and the battery went back up to 98%. Maybe this is why people are reporting battery draining quickly. While I was using my ipad with an external power source the percentage battery was also seen to go down. Is this going to be fixed?

Try a rest: Simultaneously hold down the Home and On buttons until the iPad shuts down. Ignore the off slider if it appears. Once shut down is complete, turn the iPad back on using the On button. In some cases it also helps to double click the Home button and close all apps from the tray before doing the reset.
Then make sure to try the suggestion I made earlier - the symptoms you are describing are typical of meter calibration - if for no other reason than to eliminate it as a cause.

Battery percentage isn't correct.

Ever since upgrading to iOS7 I've been noticing an issue with the battery percentage.
For example: it goes from 47% to 41% in a heartbeat, but when I plug my phone into the chrager it goes right back to 46%.
I tried restoring my phone through DFU not putting any backup on: it happened again. Went from 66% to 60%, only to go back to 65% when I plugged it in.
Has anyone of you noticed a similar bug? Or is it just my phone?

I ham having this problem too. My battery indicator is increasingly inaccurate at the lower end. The phone is now shutting off at about 25% battery. Sometimes, it restarts immediately because it thinks it has enough charge, displays "1%" and immediately shuts down again. I've actually seen it struggle where it trys restarting a few times while charging.

Why has battery percentage been enabled for iPad and iPhone, but not iPod Touch?

iPhones have had the option to enable the battery percentage reading in the top right corner of the screen since they came out, and iPads later got that ability. Yet throughout their times, updates, and models, iPod Touch users never have had that option. And that tiny battery icon can be deceiving. That icon on my iPod Touch 5G looks like I have 50% left, yet I plug it in, and suddenly, its charging just with a red end, meaning 20% or less remaining. Apple... PLEASE give iPod Touches the option to torn that percentage on at the top right corner of the screen, even if it's only to the nearest 5 percent, although one app I have tells me exact battery percentage, so iPods have that capability, just please put it in the settings! I like the convenience of that reading at the top, rather than opening an app every time I need a battery reading! PLEASE Apple, it's time to let us get the percent! Also, adding a built-in FM Radio receiving antenna for on-the-go FM Radio support wouldn't be a bad idea in the next generation if iPod Touch!

It can be added but it is inaccurate. Large fluctuation in % battery will be seen with load changes.
http://modmyi.com/forums/ipod-themes/816715-add-battery-percentage-ipod-touch-5t h-generation-ios-6-without-jailbreaking.html

Why isn't my battery percentage working? I click to have it on and when it's on it doesn't show up, also when I try and change my text ringtone , and soon as I back out of the sounds setting when i recheck again it's back to the original default soun

A Couple ddays ago I noticed my phone started acting wierd like the white screen with the apple picture on it popped up when I was on the phone.. All my contact names were deleted, and hours later the names popped up again. Not today I noticed something that's really ******* me off!!!!! (Lol) when I check to have battery percentage on (it's green showing its on) but it doesn't show at the top, and when I back out of the setting and go back the battery percentage is off again! Now with my text tingtone I try to change it back to how I used to have it and it just doesn't let me! I click a certain sound and back out of the settings and it's back to the defauLt !!!!! And check this out!!! The weird part is my phone randomly turned off by its self and when it came back on , I checked my photos and about 20 photos that I deleted months ago were mysteriously added back onto My phone! So can anyone help me :/ idk whats wrong woth this ps I have the 5

Hello Neygotsole,
Having your device malfunction can certainly be frustrating. After reviewing your post, it sounds as though your device is experiencing multiple issues. I have located an article that can help with software issues. Have you attempted to restore the device to factory settings without restoring from a backup? Test the issue on a new installation, and make sure that it works. Then use the same article to restore from your backup to either verify it still works, or isolate the issue to the backup itself.
How to erase your iOS device and then set it up as a new device or restore it from backups
Thank you for contributing to Apple Support Communities.
Cheers,
BobbyD

After upgrading to ios 5.1 on my iphone 3gs, the battery percentage dosent work well, it dosent move. how can i fix the problem?

after upgrading to ios 5.1 on my iphone 3gs, the battery percentage dosent work well, it dosent move. how can i fix the problem?

Have you tried doing turning the battery level display off and then General -> "Reset all settings"? You won't loose any data and that should do the trick.

How do I automatically log the battery percentage and time on my Retina Macbook Pro to an excel spreadsheet? (OSX 10.9.4)

Hello! So I own a 13" rMBP, and I'm running OSX 10.9.4.
How do I log my battery percentage with the date, probably down to the hour, preferably to an Excel file?
I want to track the rate at which my battery discharges, so that in the future I can compare the present rate of discharge with the past and see exactly how much my battery has deteriorated by. I'll take averages over long periods of time to account for, e.g. the fact that watching Netflix drains my battery faster than editing an essay. I also want a solution that uses negligible power in the background.
I've spent hours looking for an app that both calculates the rate of discharge and keeps all data, but I haven't found any. Eventually I decided that hopefully it isn't too difficult to write an AppleScript or something that simply logs the system clock and battery percentage in tandem every hour or so.
Thank you for your time!
Herman

What Barney said.
Here is the script to create a CSV text file with
Date
Time
Current Battery Percentage as an integer
#!/bin/bash
batterycsv="$HOME/battery.csv"
export GREP_OPTIONS="--color=never"
# if you want the percentage sign too, exclude the second egrep
battpct=$(pmset -g ps | egrep -o "(\d+)%" | egrep -o "\d+")
datetime=$(date "+%Y-%m-%d %H:%M")
printf "%s,%s,%s\n" $datetime $battpct >> $batterycsv
Output on a fully charged MacBook Air to battery.csv will be individual lines of the following format:
2014-08-09,19:49,100

How can i disable an icon beside battery percentage(a phone on some dots) ?

AN icon appeared beside battery percentage(iphone 5).its a phone icone on some dots beside battery percentage.how can I disable it?

iPhone: Understanding the TTY symbol in the status bar

Can I enable battery percentage on my iPod touch 4th generation running iOS 5.1.1 without being jailbroken?

Can I enable Battery percentage on my iPod touch 4th generation running iOS 5.1.1 without beig jailbroken?

You can enable battery % on ipod touch 4g without jailbreaking it you can use backup bot for itunes. Thats how i enabled it on mine. Step 1: goto http://www.icopybot.com/ibackupbot_setup.exe download and install it if you have windows. Step 2: Next create a backup of your device in iTunes and then CLOSE iTunes (or else you may run into problems later on) do not lock the backup with a password. Step 3: Open iBackupBot. Click the backup you just made Next click "Path" to sort by Path. Step 4: Look for Library/Preferences/com.apple.springboard.plist and double click it. On the registration screen that comes up, hit cancel. Step 5: Find <dict> and create a new line after it. Then add this:
<key>SBShowBatteryLevel</key>
<true/>
Step 6: Hit CTRL + S or just the save button at the top left corner of that editor window. Now close the window.
Step 7: Right click that same backup you just edited
Step 8: click restore
Step 9: Done! If you don't see the changes, reboot your iPod.
Enjoy I hope you found this useful!

Battery percentage indicator takes a little while to update when resuming from sleep - is this normal?

Hi folks,
I recently bought a new MacBook Pro with Retina (13") and have noticed a pecularity with the battery indicator that I'd appreciate an opinion on please.
I've charged my MBPr battery to full (100% on the menu bar and green light on the MagSafe connector). I disconnect the power and close the lid which puts that MacBook to sleep. After leaving it overnight, I open the lid and and the unlock screen shows the percentage battery having gone down by a couple of percent (which I take to be normal) - e.g. 98%. However, when I unlock and get back to the desktop, it's still showing as 100%. Clicking on the battery icon, it shows as calculating the amount of time left. After about a minute or so, it tells me how much estimated time I've got left, and the percentage indicator updates to give me the correct percentage. When using it normally, the percentage indicator drops on the desktop as I would expect it to.
Is this normal for it to give the correct percentage on the unlock screen, but then to give the original (pre-sleep) percentage when unlocked, until it has updated and worked out how much time it's got left on battery?
I've read elsewhere that many folks have been having issues with the battery indicator since Mavericks rolled out, and there are some resets that can be done by pressing various key combinations whilst powering on. I've had the MacBook only a few days, and haven't installed anything on it - it hasn't even been connected to the internet yet - so I assumed that it should be working correctly from the off - unless there's something buggy with Mavericks causing this?
I would normally shut down a computer overnight, but I like how the MBP instantly resumes when I open the lid. Am also wondering whether it'll take a few charge cycles before the battery reaches full capacity and is properly calibrated. The system report shows that it shipped to me having undergone only 3 charge cycles to date.
Any opinions would be much appreciated.
Cheers,
Gopha

After some more testing:
Disabling the battery percentage indicator and then re-enabling it causes the percentage value to update to the 'correct' value. Rebooting the MacBook also causes it to update to the correct value.
Seems like I'm not the only one with this particular issue: https://discussions.apple.com/message/24402123#24402123
https://discussions.apple.com/message/24406197#24406197
as a newbie to Macs and Mavericks, am I right in saying that there is currently an issue with Mavericks?
Thanks,
Gopha

My ipod touch 4g just updates today on itunes and the update caused more trouble than good. My ipod will no longer show me the battery percentage in the top right hand corner and also I am not allowed to drag other applications to the bottom panel.

My ipod touch 4g just updates today on itunes and the update caused more trouble than good for me. My ipod will no longer show me the battery percentage in the top right hand corner and I am not allowed to drag other applications to the bottom panel. Also my itunes doesn't allow "enable disk use" anymore. Can anyone help? My ipod now says that it's the 4.3.4 version

- Unjailbroken iPod never showed % battery. Just the icon.
- Unjailbroken iPod Touches never had a disk mode.
- What happens when you try to drag a wiggling app to a empty space in the bottom? Does it move and snap back?

Does the new iPod Touch 5G have battery percentage?

Hello, since the iPhone 4S has battery percentage with an A5 chip installed, I was wondering if the iPod Touch 5g has battery percentage. I've seen a dicussion on this same topic but i want to make sure of it. Please answer back, anyone, and please, no rude comments!

No, it is not an option for the iPod. But see:
Can I enable battery percentage on my...: Apple Support Communities

Battery percentage is inaccurate!

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