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.

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My iphone battery percentage isn t working correctly.

Is there a fix for my battery problem? It will almost daily drop multiple percentage points for example from %43 battery to %27. Also the phone will shut off at %20-22 and when I plug power in the phone within seconds reads %25-30 battery. Also sometimes battery will read the same percentage for what seems like forever then drop way down. All this seemed to start with either ios 7.0.3 or 7.0.4 updates. Any pointers?

I was afraid that could be the culprit, however since it didn t begin until one of the last two latest software updates I thought maybe it was a software issue and that there could be a fix for it.

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

Why does my iphone 4s not display the correct battery percentage? it can get really annoying if it turns off unexpectedly and after that another problem occurs with the phone turning off and on repeadtly

My iphone 4s recently started shutting off and on unexpectedly when updating a whole load of snapchat story's on my feed. However i also have a problem with the battery percentage, i've tried everything with it experimenting all most everything. i even changed my battery twice and i still don't know what to do
someone please help me

Hi 3Kadzo,
Welcome to the Apple Support Communities!
I understand you are having some concerns about the battery usage and percentage displayed on your iPhone 4s. I would suggest the troubleshooting steps in the following article to help isolate and resolve these issues.
iPhone and iPod touch: Charging the battery
http://support.apple.com/kb/HT1476
I hope this helps,
-Joe

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

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

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.

3G, iOS4 & Battery Percentage slider

Can anyone tell me why on earth the "Battery Percentage" slider isn't available on the 3G's with iOS4? (Settings > General > Usage > Battery Percentage)

Well I have to say I thought I was loosing my mind. Now I can have peace again. iOS4 on my 3g is terrible . I have to admit I did not expect much, considering this new os was not really intended to be installed on the 3g models, or were they... If I were a gambling man I would wager that, the man brilliant minds involved with the development of iOS4 new the entire time what kind of performance this update would really do to the 3g models. Steve Jobs did make a very very very brief statement to that effect in the keynote address. Could it be that apple just truly wants us all to upgrade to the 4G... hmm
i think i smell a conspiracy.. as for my 3g. my batter was drained after about 5hrs after a full charge.
not a single battery life issue until the update last night. Also the animations of the screens are slow and choppy and freeze up. I am going to reset my phone back to os 3.02 I can wait for my 4g ..

Bluetooth toolbar icon displays incorrect battery percentage

For the past week or so, my macbook pro bluetooth toolbar icon has been displaying very incorrect battery percentages for my bluetooth keyboard and magic mouse.
Using the 'ioreg' tool from teh command line, I can get correct information (both my keyboard and mouse are around 45% battery).
See below image for the incorrect battery percentage.
Anybody have any suggestions on how to correct this problem?
Thanks,
Matt

This is a new issue with 10.6.7. Eventually the battery percent will start to decrease. Not much can be done until Apple provides a fix.
There is a widget you can use in dashboard in the meantime.
http://www.apple.com/downloads/dashboard/status/mightymonitor.html
Regards,
Captfred

My iPhone 5 has really sporadic battery percentage that jumps all over the place and every so often the phone turns off

Hi guys!
I'm having trouble with my iphone 5, the battery percentage jumps all over the place. It will be down at 14% and then I plug the charger in and it jumps to 50%, it jumps around without me plugging the charger in. Today it actually turned off twice and had the red icon to plug it in and when I plugged it in it had turned straight on and was at 27%.
Any ideas what could be causing this? Its really annoying because when I'm out I'm not really able to rely on the battery indicator being correct.
Any help would be greatly appreciated :)
Russell

Hi Boris,
That sounds really similar! I'm not sure what to so about it, I bought a mobile battery pack to charge my phone while I'm on the go as this seems to make the percentage instantly jump back up again. If I don't get any ideas on here ill probably take it in to an apple store and see if I get any joy there. I'll let u know the outcome if I do go to a store, maybe I can at least buy one at a reduced rate or something. I got my iphone 5 on the day of release so I'm outside warranty too :(

OS X Yosemite - Battery Percentage 'Stuck'

I recently updated my laptop (Macbook Pro 15" Early 2011) to OS X Yosemite from OS X Lion and have found that the battery percentage up in the top menu bar no longer displays the right information. It's almost as though it isn't updating at all to what the battery level should be. The only time that it 'updates' is when I turn the 'Show Percentage' option off and on - then the icon and the battery percentage changes to what it should be at. However, it then sticks at that until I turn 'Show Percentage' off and on again. It happens when charging too going the other way, I could have it on charge for hours from 8% or so and it'll stick at that number despite being fully charged until I 'update' it as per the above. I could even unplug the charger and it still displays the 'charging' icon rather than switching to the battery icon (despite the battery depleting as normal).
Also, whenever I charge it to 'full', it only ever gets to 98% now and says that the 'Battery is Charged'. I've attached a screenshot to show.
Any help would be much appreciated!

Hi ..
Open System Preferences > Energy Saver then select the Battery tab.
Click: Restore Defaults
Then monitor the battery percentages.
If that didn't help, open the Finder.
From the Finder menu bar click Go > Go to Folder
Type or copy paste the following:
~/Library/Preferences/com.apple.systemuiserver.plist
Click Go then move the com.apple.systemuiserver.plist file to the Trash.
Restart your Mac then monitor the battery percentage in the menu bar.

MBP Retina Battery Percentage Issue

I use istats pro for my MBP Retina and I noticed yesterday that the battery percentage was 99 percentage on there but the percentage the laptop was telling me was 100%. So I noticed it again this morning and I unplugged my charger and I noticed how the istats pro percentage was going down and laptop was staying at 100%. Eventually the laptop percentage went down but so did the istats pro percentage.
Like I have 2 battery percentages and not sure which one is correct, I'm assuming the laptop one. On my old 17 inch MBP the istats pro battery percentage and the laptop percentage were always the same but with my Retina they aren't.
Can anyone else me out please.

I use istats pro for my MBP Retina and I noticed yesterday that the battery percentage was 99 percentage on there but the percentage the laptop was telling me was 100%. So I noticed it again this morning and I unplugged my charger and I noticed how the istats pro percentage was going down and laptop was staying at 100%. Eventually the laptop percentage went down but so did the istats pro percentage.
Like I have 2 battery percentages and not sure which one is correct, I'm assuming the laptop one. On my old 17 inch MBP the istats pro battery percentage and the laptop percentage were always the same but with my Retina they aren't.
Can anyone else me out please.

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 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 isn't correct.

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