Loss of battery life

Hey,
I am having a problem with my battery. I have had my computer for about a year and a half *love it* but just recently I discovered that my battery life off the charger lasts for maybe an hour or an hour and a half at the most. Now for the past couple months I haven't really needed to take my comp anywhere, so I just used it on the charger. I'm guessing that is how I messed it up, but what can I do to get my battery life back. I would appreciate any help! thanks

Try calibrating your battery to help restore battery health.
http://docs.info.apple.com/article.html?path=Mac/10.4/en/mh2339.html
Hopefully that should do the trick.

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Loss of battery life in iOS 4.2 (compared with iOS 3.x)?

Hi,
Similar to another poster here, I found that when I upgraded my (first-generation) iPad from the original iOS 3.x software it came with to iOS 4.2, it really smoked its battery life (like, that percentage in the upper right conner really came down a lot faster). I have installed iOS 4.3.3 today and so far cannot tell if there's any difference. I was just wondering if anyone else has experienced this loss of battery life in iOS 4.2 or 4.3 compared with the 3.x software?

Hi, thanks, I had tried that, but it's a good tip... I think there is just such a difference though between how the battery life had been with iOS 3.x compared with how it is with iOS 4.x... and also I think many of the posters in this thread had been experiencing similar problems:
https://discussions.apple.com/message/12690694#12690694
Thanks for the tip though, really appreciate it! :-) Best,
arko2

Loss of battery life with 0s 10.8

who has the fix for the loos of batery life...my mac book air is being sucked dry in half the normal time.

Try the following, the SMC reset will be most effective.
SMC:
http://support.apple.com/kb/HT3964
PRAM:
i. Ensure the machine is powered off.
ii. Locate the following keys on your keyboard in preparation for Step 4:
‘command’ – ‘option’ – ‘P’ – ‘R’
iii. Press the ‘power on’ button.
iv. Immediately – and before the grey screen appears – hold down ‘command-option-P-R’ all together.
v. Keep them held down until you’ve heard the start-up chime twice. After you release them you should hear it again, and hopefully your Mac will boot up normally.

Battery life shortened & other problems with 3.1.1

I have a 1st gen iPod Touch and my battery life went from about 12-15 hours (I could use it 2 days in a row at work) to 6 hours or less as soon as I installed the latest software update. I also haven't seen the wifi bars once, even though I haven't had problems connecting to the internet. (They don't show blank bars, just no bars at all.)
Anyone else having these problems? The battery life is driving me crazy.
iTunes did crash on me partway through the install and I ended up having to restore my iPod completely, so I'm trying to figure out if that caused these problems or if it's a software issue.

i just finally updated to 3.1.2 from 2.something, and the first day i noticed a HUGE loss of battery life, over 25%. this is ridiculous. this is a frist gen that i have had no battery problems until now. i could listen to music for 5hrs and then use wifi for 3 hrs and id still have life left, now on a full charge, the battery is dead just listening to music for a couple hours it dies. now i know this is an older ipod, but for this to happen the next day after an update, give me a break...

What can I do to stop my battery life diminishing on iPhone 4S?

I upgraded my iPhone 4S and iPad 2 last week to IOS6. In the last 24 hours I started experiencing a rapid loss of battery life on both devices. In the last 10 hours I had to recharge my iPhone twice. It is losing about 1% per minute. What can I do to stop this drainage?

search this forum. There are many excellent battery saving tips already outlined. No need for another repetitive post,

MacBook Pro Battery Life Draining After Updating to Yosemite

Hi,
I have a 2011 MacBook Pro. After updating to Yosemite a few months, I have experienced a severe loss of battery life. I was averaging around 6-8 hours on a charge, and that is now down to about 3. I have reset the PRAM, etc. and SOMETIMES that will work but not always. I typically have only one program running at a time, Chrome, but sometimes it's a mix between Chrome, Windows, iTunes. But my computer usage patterns have not changed since before/after updating. The only thing I can think of is that it is caused by Yosemite.
When I check my Activity Monitor, the apps with the highest CPU usage are WindowServer, kernal_task, and Chrome Helper. I have also disabled several plugins/features of Chrome to no avail.
Has anyone experienced similar issues or have any suggestions?
Thanks!

Is one of the 'etc.' a SMC reset?
http://support.apple.com/en-us/HT201295
Ciao.

Battery life after installing iOS 4.0 on 3GS

I've read a little about loss of battery life on the 3GS after installing 4.0 so I was curious who else is experiencing these problems. Since installing the new software my phone is losing about 8-10% per hour when sitting idle. I am losing a full charge and using the phone less than 30 min. I have done a restore and have made sure aps are closed. I can;t get the phone to stop eating battery life. Any suggestions?? Please!

Bingo.....decided to try a restore factory settings through ITunes and then backed up with the phone settings so I did not lose all my stuff, if this had not worked I would have tried again but then reset as a new phone and start afresh, but thankfully I did not need to. Note you still end up with OS 4.0
After going through the set up and then recharging just once, the battery has performed pretty much as it is has done since initial purchase. In 16 hrs of minimal usage and in standby it has used 30%.
Good luck.
Cheers
Metalfox

Ridiculous battery life over 3G

Since I upgraded to 2.2.1 I experienced a significant loss of battery life, but with 3.0 software things got unacceptable.
Say I undock my iPhone fully charged at 9am, just with a few calls and some email/apps, I find my battery completely out of juice by 6pm.
I tried different things, such as disabling wi-fi, push notifications, email fetch, etc. nothing works but to disable 3G. If I disable 3G connectivity and switch to the GSM network the phone manage to reach the end of the day with 20% of battery charge left.
Am I the only one experiencing this problem? It's unbelievable that I have to keep an iPhone 3G in 2G for it to stay turned on till the end of work day. Are there any solutions or patches to address this problem?

To those people who claim their battery life remains the same or better after 3.0, you must only use your phone to make and receive calls only. Cause I find that quiet impossible, when the 3gs forum is full of complaints about terrible baterry life as well.
Apple please get it together!
I took my phone off the charger at 09;00 yesterday. Now (17:15 today, i.e. 32 hours later), it shows a 25% charge. In that time I have made and received several calls, sent and received a dozen texts, had my MobileMe email on Push and my two Imap accounts on 15-minutes fetch, read and replied to several email messages, read and posted to Twitter frequently and accessed a very large number of web pages via Safari. Oh, and played about an hour's worth of WunderRadio and Last.FM.
And I forgot to mention the wi-fi (always on), Bluetooth (in the car) and the few photos and 1 video segment (only a few seconds, but it all ads up. And the weather/flight status apps.
I don't say my battery life is great - I'd like the battery to last at least twice as long - but I do say that you're incorrect. There are more than a million 3GS iPhones in use now (it was up to a million before the end of June, so I don't know how high it is now) - this forum only hears about the complaints.
You have a problem with your phone - that's clear. Do 2 things:
1. Take it back and get it replaced, because it obviously has a fault
2. Stop assuming that anyone who doesn't have the fault is somehow cheating
Message was edited by: nick101

"mountain lion battery life"

concerned about loss of battery life on mountain lion

I have a 2011 Macbook Air 1.6 i5 128gb SSD 11 inch
I was running Snow Leopard and used to get around 5-8hrs battery, then I moved to Lion and was still getting 6-7hrs battery life. 3 days ago did a fresh install (wiped my hard drive completely), and now only get 2 hrs approx.
The OS is working fine and I love it, but the battery life issue is severe, that i can no longer use it for journey or around the office.
I am looking to wipe again and move to Lion, but need to know when Apple may release a fix and if I should just wait a little longer.

Definitive Answer: Battery Life and Speed with FileVault 2

How much speed loss can I expect to see when turning FileVauly 2 for Lion on a 2.4GHz quad-core MacBook Pro with a 256GB SSD, 4GB RAM and 1GB graphics?
This would be for things like Safari, Skype, iTunes, Coda, Chrome, Firefox, Pixelmator, iPhone running at the same time sometimes (but mostly just a few at once).
How much battery life can I expect to lose with the same questions in mind...?

I've been running FileVault 2 for a while on my MBP SSD, and while there are not noticable speed losses, the battery life has been severely diminished. Any solutions to that?

IOS 5 fix not working battery Life not any better about 80% loss in 8 hours with no use

I updated my iPad with the 5.0.1 update, to fix my battery issues. This hasn't fixed anything, what to do. 80% battery life loss in 8 hours with nothing being used?

Have you checked all your settings to see if anything is running in the background e.g. location services, frequent email fetching, notifications etc - there are some tips on this page which might help, including doing a charge cycle (charging to 100%, running it down so that it powers off, and then charging back to 100%) : http://www.apple.com/batteries/ipad.html
Also are then any apps on the taskbar that might still be active ? To close apps completely : from the home screen (i.e. not with any app 'open' on-screen) double-click the home button to bring up the taskbar, then press and hold any of the apps on the taskbar for a couple of seconds or so until they start shaking, then press the '-' in the top left of an app to close it, and touch any part of the screen above the taskbar so as to stop the shaking and close the taskbar.
You could also try a reset and see if that makes any difference : press and hold both the sleep and home buttons for about 10 to 15 seconds (ignore the red slider), after which the Apple logo should appear - you won't lose any content, it's the iPad equivalent of a reboot.

Battery life loss.

I washed my charger for my iPhone 4 a couple days ago. And I realize the adapter doesn't work but the cord still does. So I put the cord in my iPod charger and it seemed to work just fine.
Now I charge it all night, and I don't use it much, keep the brightness on half, keep everything in the multitasking off, turn off the wifi and Bluetooth, and my battery is still not stayin up.
And last night I plugged it in at about 10:45 amd let it charge all night. I unplugged it this morning and about 3 hours later I looked at the usage in the settings and there was nothing but a dash by the usage and standby since the last full charge.
Did the cord that I washed mess up my battery?

I would pick up a new cord, just in case, and see if your battery life still seems to be lower. How long is the phone lasting during the day?
~Lyssa

Optimizing iPhone battery life: Between charges and before replacement

FYI. An excellent iPhone battery care article by iPhoneAtlas.com:
Optimizing iPhone battery life: Between charges and before replacement
http://www.iphoneatlas.com/2007/07/09/optimizing-iphone-battery-life-between-cha rges-and-before-replacement/

OK, I agree that is a completely false statement. The rest of the article is pretty good.
If you assume a linear decrease in battery charge for each full cycle (which it really isn't, but much easier to model in a spreadsheet). Then 80% of original charge after 400 full cycles is approximately 0.8% loss in battery charge per full charge cycle (again this is a simplification, stay with me). This means that after 400 cycles, you are at approximately 80% of your original total charge level. As stated by Apple.
So, extrapolating that out to EOL (end of life) which Apple assumes to be 50% battery charge, it would take approximately 1,000 full charge cycles for your battery to be EOL (according to Apple). It would actually be slightly less than that since it won't be a linear function.
For me, that's 2 to 4 years of use depending on whether or not I continue using the iPhone as much as I have this first full week.

Brand new iPod touch 4th generation VERY short battery life.

So the other day I went in to replace my old iPod touch for a new one because the home button was getting stuck and wouldn't work. So everything worked fine and I got the new ipod. Well It's been a few days and I've noticed that the battery life on this ipod isn't long at all. It'll last me maybe 30 minutes of usage. I've done everything I can to try and save battery life and it kind of helps, but not really. When I got this new iPod, I restored it from a previous backup instead of setting it up as a new iPod. I've read that doing this is the number one reason for battery loss in new iPhones and iPods. Is this true??
What should I do? I'm guessing that the battery isn't bad because it's BRAND NEW! I was going to take it to Apple, but I'm not sure if they'd find anything wrong with it since it is a brand new battery. PLEASE HELP!

http://support.apple.com/kb/TS1538
There have been some problems accessing pages on the Apple web site. If the hyperlink gives you a "We're sorry" message, try again.

Battery life displayed as 0%

When the button on the battery is pressed it shows 3 green lights but the battery life is still displayed as 0% on my macbook.
This is my 3rd battery. The second was given to me while my macbook was under warranty. When this one decided to go out I used it until it ran out of juice. Then I pressed the power button hoping that it'd come back on just long enough to transfer a file (hey, it could happen). Instead the screen flashed white and that's the last I saw my macbook respond to this battery.
This happened some time early spring and I have been using it on AC power only since then. Classes are starting tomorrow so I would like to have it run off of battery again.
Battery Information:
Model Information:
Serial Number:
Manufacturer: DP
Device name: ASMB013
Pack Lot Code: 0001
PCB Lot Code: 0000
Firmware Version: 0102
Hardware Revision: 0300
Cell Revision: 0100
Charge Information:
Charge remaining (mAh): 0
Fully charged: No
Charging: No
Full charge capacity (mAh): 0
Health Information:
Cycle count: 26
Condition: Check battery
Battery Installed: Yes
Amperage (mA): 0
Voltage (mV): 11440
System Power Settings:
AC Power:
System Sleep Timer (Minutes): 0
Disk Sleep Timer (Minutes): 10
Display Sleep Timer (Minutes): 30
Automatic Restart On Power Loss: No
Wake On AC Change: No
Wake On Clamshell Open: Yes
Wake On LAN: Yes
Display Sleep Uses Dim: No
Battery Power:
System Sleep Timer (Minutes): 25
Disk Sleep Timer (Minutes): 10
Display Sleep Timer (Minutes): 2
Wake On AC Change: No
Wake On Clamshell Open: Yes
Display Sleep Uses Dim: Yes
Reduce Brightness: Yes
Hardware Configuration:
UPS Installed: No
AC Charger Information:
Connected: Yes
Charging: No

The battery has been sitting for several months but it shows that it is not empty.
(when I press the button on it, the lights turn on.)
The battery given to me after the first one died was "refurbished" and didn't last me too long until after the warranty ran out; about 3-4 months. This one I am currently using I bought off a third party web site. It only lasted about a month.
The computer itself was purchased 3 years ago last month.

Loss of battery life

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