How reliable is the Battery Status Indicator?

I have had my MacBook Pro for a month now, and I don't know if I can trust my battery status indicator a the top of the MacOSX screen
It usually goes a lot shorter than the indicated percentage or the calculated battery life time.
I have another issue with this MBP.
Has anyone actually been able to use MBP for as close to 5 hours which is the battery life posted on the apple website?
I set my MBP to lowest backlight, no programs or widgets running, wireless and bluetooth off and kept it one for hours. The battery lasted a about 3hours and 49 minutes. Is there something wrong with this battery?

As you use your MBP on battery it collects information on your battery usage style and uses that to predict battery run times. based on that it's reasonable accurate providing you calibrate your battery ever 4-8 weeks or so. Also, the data it collects the more accurate it can predict your battery time.
Once you start using your MBP differently though the accuracy can vary but should still remain "reasonably" accurate.
I personally find the times reasonably accurate altough for the most part I run off the percentage rather than time.
Has anyone actually been able to use MBP for as close to 5 hours which is the battery life posted on the apple website?
No-one will ever get 5 hours. As you note from the specs it's "based on usage" or more to the point, it's non-usage. Those time are achieved by having it on my not being "used".
Average battery times should range from 2.5-4 hours depending on your actual usage.

Similar Messages

What is causing flashing arrow next to battery status indicator?

I have a flashing white arrow next to the battery status indicator on my ipod touch that is causing music to be unplayable. Everything else appears to be ok. Arrow goes away when doing anything other than music. Any help would be appreciated.

Could be the Location Service icon . Go to SettingsPirvacy and either turn Location services on or off.
Next:
- Reset the iOS device. Nothing will be lost
Reset iOS device: Hold down the On/Off button and the Home button at the same time for at
least ten seconds, until the Apple logo appears.
- Reset all settings
Go to Settings > General > Reset and tap Reset All Settings.
All your preferences and settings are reset. Information (such as contacts and calendars) and media (such as songs and videos) aren’t affected.
- Restore from backup. See:
iOS: How to back up
- Restore to factory settings/new iOS device.

Nokia E75 Battery Status Indicator?

Hello, well i have a problem. on most phones, if you go in the settings, there will be a section where it says all of the phone status. and i find this really useful when it comes to the battery. But on the Nokia E75 i cant seem to find the battery status indicator. Does anyone know where it is?
***Battery Status Indicator is where is says how much percent of the battery is left.

Faulty battery maybe. The battery has circuitry that reports its charge level and it sounds like that isn't working. You should have it replaced under warranty if possible!

Battery Status Indicator (in menu bar) does not update

I've recently noticed that the battery status indicator in the menu bar gets "stuck," and won't update. I can force it to update by disabling and re-enabling it, or by changing the view style, but if I leave it alone, it won't change, even across sleep/wake cycles.
Any ideas?

Actually, the problem disappeared after a reboot. I reboot so infrequently, I didn't even consider that as a solution, but something else caused me to need to reboot, and after that, the indicator works fine.
Still no idea what caused it to get stuck in the first place, but for now, it's better.
Good luck!

Macbook pro 17" 3g battery status indicator stuck on 100%

Battery status indicator stuck on 100% Worked normaly until today
resetting smc does not help
Battery Information:
Model Information:
Serial Number:          9G95201YS4M0A
Manufacturer:          DP
Device name:          bq20z951
Pack Lot Code:          0000
PCB Lot Code:          0000
Firmware Version:          0042
Hardware Revision:          0001
Cell Revision:          0119
Charge Information:
Charge remaining (mAh):          65262
Fully charged:          Yes
Charging:          No
Full charge capacity (mAh):          65262
Health Information:
Cycle count:          221
Condition:          Replace Now
Battery Installed:          Yes
Amperage (mA):          -1629
Voltage (mV):          8072

I closed the lid for about 10 minutes to do something and when I came back the status seemed to be working correctly (80%) and the health now seems normal. I made no other changes. I will keep an eye on it and post if it goes haywire again. Thanks for your help
Battery Information:
Model Information:
Serial Number:          9G95201YS4M0A
Manufacturer:          DP
Device name:          bq20z951
Pack Lot Code:          0000
PCB Lot Code:          0000
Firmware Version:          0042
Hardware Revision:          0001
Cell Revision:          0119
Charge Information:
Charge remaining (mAh):          9833
Fully charged:          No
Charging:          No
Full charge capacity (mAh):          12217
Health Information:
Cycle count:          221
Condition:          Normal
Battery Installed:          Yes
Amperage (mA):          -1550
Voltage (mV):          7930

Excite Pro - Battery Status Indicator at 0%

Battery status indicator is stuck at 0% - battery holds charge ok just don't know what it is. I presume the battery stats file is corrupted - is the only way to fix it a factory reset?
Calibration either needs root - not possible or 60% charge - won't work as says 0%!!!!

I think you should set it to factory settings.
Press and hold power button and volume up button. Then in the menu choose factory reset.
If this will not work, then the issue must be related to hardware failure

WHY DOESN'T MY VOICE OVER BUTTON GIVE ME THE BATTERY STATUS

I have tried to use the voice over button to hear my battery status but it doesn't work. Any suggestions?

What generation Shuffle do you own? How are you trying to hear the battery status?
Identifying iPod models
B-rock

My iPad 2 wifi keeps rebooting , and it doesn't update the battery status . Can anyone help me with this one?

My Ipad 2 keeps rebooting and it doesn't update the battery status anymore.
Here is the error
Incident Identifier: D729F1DF-6960-4847-A6C3-75351A67AE9B
CrashReporter Key:   c7e1a298a42fc9bbb41b4ed79ff29a1655de12a6
Hardware Model:      iPad2,1
Date/Time:       2013-02-16 02:58:06.115 -0800
OS Version:      iOS 6.0 (10A403)
CRC ERR!
I had this problem for quiet sometime now, and I would really appreciate your help. THANKS

I did try restoring the ipad a couple of times and it didn't do the trick. I also tried updating the firmware.
The only thing that worked for a while when the ipad - on it's own - rebooted itself into a black screen with white text and automatically fixed the issue. It worked perfectly for a couple of months but it came back after I forgot to charge the ipad , does anyone know how I can force the ipad into that screen again ?

How charged is the battery?

i have a 500 MB 1st gen shuffle and everything works fine, but i wonder if there's a way of telling how much charge the battery is holding while it's connected to iTunes. i know the battery indicator light has three colors, but can iTunes give any more specific information?

Bummer. Thanks!

How to increase the battery life of your N series ...

What I am about to post here is valid for any 3G phone or device regardless of model but it is particularly focused towards the N series devices and their power hogging features.
Your battery life is dependant on many many things. How often you take calls on the device, the condition of your battery, the features you use on the device and so on and on. Therefore it is impossible to say that by following the information in this post you will get x amount of days battery life, but it will get you more time out of the battery than you otherwise would have got.
So with that out the way, if your looking to increase your battery life then follow these tips and your battery should start looking a lot healthier.
First of all lets start with THE big one. The one that is going to save you the most juice. Switching 3G off.
Yep, you heard me right. Just by switching the 3G capability of your phone off you will add hours and hours to your battery life. How is this so? Allow me to explain...
Due to the rather poor delivery of 3G in the UK by the network operators, it is rare for any 3G phone to maintain a constant 3G signal. Instead you will find that the phone constantly flips between 3G and GSM mode (Keep an eye on your signal one day). Even those of you on Vodafone who probably have the best 3G network coverage will find this is the case.
Unfortunately, this constant flipping between the two modes sucks power from the battery like a vampire as it alters its reception state for the different modes and the constant flipping is..well...causing it do this constantly! It can sometimes even make your phone unavailable for calls for very brief periods as it trips from GSM to 3G and vice versa.
If you need to use 3G for video calls or whatever then I'm afraid your just going to have to live with this but if you don't (And lets face it few of us do) then you can switch 3G off and increase your battery life considerably.
To do this, go into the "Settings" application (Found in the menu somewhere, by default Nokia normally stick it in "Tools"), and then to the "Phone" tab. In there you will see an option that says "Network mode" and you have a choice of "GSM" or "Dual Mode" (I.e. UMTS and GSM). Set it to GSM and your phone will restart. Once it restarts it will be working in GSM with GPRS speeds only but really for most purposes this is fine.
You have now just extended your battery capability considerably. You can further extend it by going to the "Connection" tab, going into "Packet data" and changing it to "When needed" so it is not constantly checking for a data connection.
The second big change you can make is to turn your phones wifi scanning capability off. The last time I looked not all Nokia's phones that have wifi capability can have their wifi cards switched off entirely but if you can, turn it off except for when you need to use it. Wifi is a power hog.
The next big change you can make is to lower the screen brightness settings on your phone. The less bright your screen is the less power is being used to light it up. Nokia by default leave the screen brightness at something like 50%. Lowering this a bit more will conserve more juice. Before you do this though please consider the fact that lowering the brightness setting will have a big impact on your ability to see the screen clearly in sunny conditions although you will be fine in the dark as you can't lower the brightness that far.
To lower the brightness, go to the settings tool in your phone and into the display option (Hidden in a subcategory called "Personalisation" on the N95). It won't hurt to set the power saving time out to 1 minute and the backlight time out to 10 seconds while your here (Although these are the Nokia default so they should already be set to this).
Finally in regards to the screen, although they may look pretty, animated screensavers use more battery power than the standard blank screen with time and date so avoid them if you can.
It also helps to keep Bluetooth switched off until you need it although the power savings are minimal in comparison to the other changes but every little milliamp counts!
Using the above methods I generally get about 3 to 4 days with about 3 hours talktime on my N95 without using Bluetooth, GPS or anything like that (I might be able to get more but so far I have not paid attention to the battery state before I put it on charge). If I am on a long train journey I can get about 4 hours worth of full screen video and about 2 hours talktime over the period of about 24 hours before it needs a recharge. As I said at the start of the post your mileage will vary greatly depending on how you use your device.
Hope this helps.
Useful links: Phone firmware update | Nokia support site

02-May-200701:14 PM
bixby wrote:
no keffa it is a cop out from nokia
its not unfai as its a premium device with a premium price
the n95 battery is atrocious
dont change the post content as the title is 'How to increase the battery life of your N series device'
your talking about nokia phones specifically
the networks are not to blame
they do not make the handsets : Nokia do !!!!!!!!!!
I'm going to choose my words carefully here...
I would never deny the battery on the N95 is not really up to the job of powering the N95 with its power hungry features. To put the same battery into a phone that has WiFi, GPS and a large 320x240 screen, the same one that goes into the E65 which has comparatively nothing compared to it is a bit pants.
However at no point was I criticising them for the band hopping problem. I labelled the post as how to increase the battery life of your N series device because this is a board for the N series devices. It was a simple choice of wording and not intended to be cutting in any way and I did make a remark that the details would be true of any 3G device at the top of the post.
What I was trying to point out in my second post is that the constant band hopping the phone is being forced to do that is draining its battery so much more quicker than it would if it had a constant signal of one kind or another isn't quite Nokia's fault.
They build it to conform to a laid out specification for 3G. However if the network operators cannot be bothered to roll out their 3G infrastructure adequately enough that the phone can find and remain locked onto a 3G signal that is usable then what are Nokia to do other than offer you the capability to turn 3G off until you need it (Although note to Nokia: That **bleep** reboot the phone does when you do this is entirely unneeded and you know it).
Blaming Nokia for this would be like blaming the manufacturer of your radio for failing to pick up radio because the radio station does not have any transmitters within range of your radio's receiver.
Finally...this band hopping is exhibited by all 3G phones built by Samsung, Nokia, Sony Ericsson, etc, from their most budget 3G model to their priciest piece and is the reason that all phones with 3G capabilities have batteries that do not last for any respectable length of time because these phones are also having to band hop between 3G and GSM.
Finally the proof is in the pudding. Turn 3G off for a few days. See your battery improve. Then (Although admittedly this will be harder to do...mcuh harder) find an area where you get a fairly decent 3G signal constantly. Again, see your battery improve. Try it with a different 3G phone...different manufacturer even. The same will be true.
So I stand by my comment, the network operators and their woeful 3G rollout are the villains costing you a fair chunk of your battery and Nokia cannot be expected to mitigate this....but a better battery would be nice all the same...
Useful links: Phone firmware update | Nokia support site

HT4623 Hi!My iPAD lost its charge fast !!I've got an iPAD capacity 57,1GB and it has available 55,1GB ,version 7.0.4 .I'd like to know how long does the battery last when it is 100 % charged.

Hi!I've just installed the iOS 7.0.4 operating system and the battery lost its charge at an incredibly speed.I'd like to know how long does the battery last if everything is right when it has 100% charge.Thanks!

I`m `propping` up this thread to to the top of the forums again as it`s been three months and not a single community member or Apple support personnel have replied, which I find discouraging.
I`ve tried everything - both the iOS device(s) and Apple TV have been upgraded (albeit reluctantly) to the latest versions, since iOS 7 looks like crap compared to iOS 6. Both use the same WiFi network. Bluetooth is set to `off`, as per the online tutorials on the Apple Support page.
I also tried shutting all of them down, including the router, waiting 30 seconds and turning the router, then the Apple TV then the iOS device on sequentially with 30 seconds in between each, again as per this discussion forum, and still nothing.
Why can Apple not make a technology, such as AirPlay, work with greater than 10%?
Any other ideas?
Come on, people.
Thanks,
Doug

How to see the period status in MM module

Dear gurus,
how to see the period status in MM module & how to change it. pls send me tcodes of MM-Fi integration
regards,
Radha Krishna

Hi
tcode MMRV for status
tcode MMPI to change period
Tcode for integration i s OBYC
assign points if useful
pushkaraj
Message was edited by:
pushkaraj kulkarni

How to display the file status in the status bar?

Hi all,
Can anyone tell me how to display the file status in the status bar?
The file status can consists: the type of the file, the size of the file etc..
thanx alot..

    class StatusBar extends JComponent {
          JLabel l = new JLabel("ready");
        public StatusBar() {
              super();
              setLayout(new BoxLayout(this, BoxLayout.X_AXIS));
              add(l);
          public void setText( String prompt ) {
               l.setText(prompt);
               setVisible( true );
        public void paint(Graphics g) {
              super.paint(g);
    }

How to reset the response status and response header

Dear Masters
Actually we are using NTLM Authentication process to get the system login id for our web application. The problem which I am getting is after running the NTLM Authentication Code I am not able to call the action class. It is telling 400 Server error bad request. I am using Struts Dispatch Action Class. In Dispatch Action I will be passing a name (eg. method) as a parameter in struts-config.xml file and using that parameter I will be calling the respective method in the Action class. The problem which I am facing is after running the authentication code I am not able to fire the action class. It is telling the error in the console as "parameter named method is not found". Actually in NTLM Authentication code they are setiing the response status to www-authenticate,NTLM. If I reset the response status back to the normal form I think i will be able to fire the action class. Please give me a suggestion on how to reset the response status and response header back to the normal form. Any solution to this is appreciated. Please respond your reply as soon as possible. Thanks in advance.
Regards
Ramesh

Hi,
I think, a servlet filter is what you need. Please check the following URLs on how to go about creating a filter.
http://dev2dev.bea.com/pub/a/2005/05/decorators.html
http://www.onjava.com/pub/a/onjava/2003/11/19/filters.html
http://www.onjava.com/pub/a/onjava/2004/03/03/filters.html?page=1
Cheers,
vidyut

How to change the battery in my bluetooth

i got the new one but don't want to harm the case to change it.a little help please.

Hmm, a quick scan over the manual does not indicate how to change the battery. But their web page has a contact tab which will open your email client to sent them email to [email protected] I suggest you contact them and ask them (a) how to replace the battery and (b) if it is user-replaceable to update their manual accordingly.

How reliable is the Battery Status Indicator?

Similar Messages

Maybe you are looking for