Auto Brightness & battery life iPad 2

Hi
I got my iPad 2 about a month ago and ive noticed that the battery life varies quite a lot, and seen many people complain on forums that its poor/worse than ipad 1 etc.
I suspected that the auto-brightness feature was the culprit so i did some tests, watching video:
Auto OFF, Bright room, 50% on slider     10% = 66 minutes
Auto ON, bright room, 50% on slider         10% = 51 minutes
Auto ON, dark room, 50% on slider          10% = 71 minutes
Obviously whats going on here is that the auto brightness (AB) is brightening up the screen in a bright room, and dimming in darker environments. But i didnt expect such a difference in battery life!!
I also ran the test just idling at home screen:
Auto ON, Very bright room, 50% slider     10% = 39 minutes
Auto OFF, Very bright room, 30% slider    10% = 82 minutes
So basically, I feel people who are experiencing dissapointing battery life are perhaps using the ipad 2 in brighter conditions more, because these tests show it can be literally half the battery life in a very bright room near a window etc
They also show that at a certain brightness the life is very good, even up to 13hrs or more! Good to know if you need a lot of life you can just turn AB off and lower brightness and get 14 hours LOL
Any thoughts?

It really depends on what you are doing. If you are playing graphics intensive games for several hours, you may find that battery life is a bit shorter than if you are surfing or playing movies.
What are you doing generally and how long is you battery lasting? There is a small chance that your battery is defective but without more information it is tough to tell.
There are also occasional bugs in the iPad OS that will drain the battery faster than normal. I've found that when it seems the battery is draining too quickly that restarting the iPad helps. Hold down the power button on the top edge of the iPad for several seconds until you get the slider, slide it off. When the iPad is off (the spinner disappears) you can turn it back on by holding down the same button for a second or two.

Similar Messages

Battery life iPad

On my iPad has a great way to save the battery life but in sort of ways when I'm using a game or a app it goes at least 10 more percent down like in an hour it's 80 instead of 90 or 100
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People what is concerned with or how can I save my battery life?

Save battery life
1. Lower brightness
2. Turn off WiFi when not using
3. Turn off 3G when not using
4. Turn off Bluetooth when not using
5. Minimize use of Location Service
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See some of the links below.
Could be the charger, cable or iPad. Plug the USB cable into your computer. It may say "Not Charging", however, it is charging slowly and will verify that the cable is good.
Try this first - Reset the iPad by holding down on the Sleep and Home buttons at the same time for about 10-15 seconds until the Apple Logo appears - ignore the red slider - let go of the buttons. (This is equivalent to rebooting your computer.)
The quickest way (and really the only way) to charge your iPad is with the included 10W or 12W (5W on Mini) USB Power Adapter. iPad will also charge, although more slowly, when attached to a computer with a high-power USB port (many recent Mac computers) or with an iPhone Power Adapter (5W). When attached to a computer via a standard USB port (2.5W, most PCs or older Mac computers) iPad will charge very slowly (but iPad indicates not charging). Make sure your computer is on while charging iPad via USB. If iPad is connected to a computer that’s turned off or is in sleep or standby mode, the iPad battery will continue to drain.
Apple recommends that once a month you let the iPad fully discharge & then recharge to 100%.
How to Calibrate Your Mac, iPhone, or iPad Battery
http://www.macblend.com/how-to-calibrate-your-mac-iphone-or-ipad-battery/
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Also, if you have a 3rd generation iPad, look at
Apple: iPad Battery Nothing to Get Charged Up About
http://allthingsd.com/20120327/apple-ipad-battery-nothing-to-get-charged-up-abou t/
Apple Explains New iPad's Continued Charging Beyond 100% Battery Level
http://www.macrumors.com/2012/03/27/apple-explains-new-ipads-continued-charging- %20beyond-100-battery-level/
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http://www.iphonehacks.com/2012/03/new-ipad-takes-much-longer-to-charge-than-ipa d-2.html
Apple Batteries - iPad http://www.apple.com/batteries/ipad.html
iPhone: Hardware troubleshooting (Power/Battery section also applies to iPad)
http://support.apple.com/kb/TS2802
http://www.overthought.org/blog/2014/the-ultimate-guide-to-solving-ios-battery-d rain
http://www.overthought.org/blog/2014/the-ultimate-guide-to-solving-ios-battery-d rain
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https://discussions.apple.com/thread/3921324?tstart=30
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http://osxdaily.com/2013/09/19/ios-7-battery-life-fix/
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http://www.zdnet.com/poor-battery-life-after-installing-ios-7-1-try-these-simple -tips-7000027348/
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http://www.pcworld.com/article/252326/new_ipad_slow_to_recharge_barely_charges_d uring_use.html
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http://support.apple.com/kb/HT4060
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http://www.ilounge.com/index.php/articles/comments/best-practices-for-ipad-batte ry-charging/
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http://support.apple.com/kb/HT4327
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http://itunes.apple.com/tw/app/battery-doctor-hd/id459702901?mt=8
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http://tinyurl.com/b67c7xz
iPad Battery Replacement
http://www.apple.com/batteries/replacements.html
In rare instances when using the Camera Connection Kit, you may notice that iPad does not charge after using the Camera Connection Kit. Disconnecting and reconnecting the iPad from the charger will resolve this issue.
 Cheers, Tom

Battery life ipad mini

Is anyone experiencing poor battery life for the new ad mini?

jareia wrote:
IPad Mini IOS 6.1
02/05/13 Apple reinstalled the IOS once
02/06/13 Apple reinstalled the IOS one more time and then gave me a new iPad Mini
This morning results 02/07/13 comparing both my iPhone and my new iPad Mini
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Several of my colleagues are using iPad 2, 3, and 1 new retina IPad. None of them are having this issue.
To date Apple has done me good but I am at a cross roads. I may have to get rid of the Mini.
Using the battery level meter in this manner is comparable to using your car's fuel gauge to calculate miles per gallon. The only thing that matters is the total amount of operating time from full charge to auto-shutdown.
Use the wall-mount charger that came with the iPad and charge overnight. Do NOT use an iPhone charger. Do NOT use an iPod charger. Do NOT use a computer's USB port. Then, operate it normally until auto shut-down (ignore any low level alerts that may appear). An irony is that doing that test to determine the total operating time is also the exact procedure necessary to calibrate the battery level meter.
I'm not claiming that you do not have a problem. I am stating, however, that we don't yet know whether or not a battery problem exists.
According to Apple:
Use Your iPad Regularly
For proper reporting of the battery’s state of charge, be sure to go through at least one charge cycle per month (charging the battery to 100% and then completely running it down).
Elsewhere, Apple elaborates and explains that two half-discharges (or four quarter-discharges, etc.) equals one full discharge.

Battery life ipad 2

I don't seem to be getting 10 hours of battery life.
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thanks

It really depends on what you are doing. If you are playing graphics intensive games for several hours, you may find that battery life is a bit shorter than if you are surfing or playing movies.
What are you doing generally and how long is you battery lasting? There is a small chance that your battery is defective but without more information it is tough to tell.
There are also occasional bugs in the iPad OS that will drain the battery faster than normal. I've found that when it seems the battery is draining too quickly that restarting the iPad helps. Hold down the power button on the top edge of the iPad for several seconds until you get the slider, slide it off. When the iPad is off (the spinner disappears) you can turn it back on by holding down the same button for a second or two.

Auto brightness of iPad mini retina is not working after 7.1.1 update

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Hello there, philfrombuderin.
When having issues with the brightness of your screen on an iOS device, the following Knowledge Base aritcle offers up some great steps for troubleshooting:
Get help with the screen on your iPhone, iPad, or iPod touch - Apple Support
If your screen is too dim, too bright, or you see only faint images
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If you have a screen protector, try removing it. Try removing your case if it includes a screen protector.
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Auto brightness will not darken your screen when you enter a dark place until you lock/unlock the screen. If it did the screen would darken everytime something covered the light sensor (which is opposite the home button on the top of the screen next to the front camera).
Autobrightness will automatically raise the brightness of the screen (slowly) when the ambient light brightens.

Save and Protect your iPad Device: How to Save and Prolong the battery life of your new ipad

Please, as you read add more answers to this on how to prolong and save your ipad battery life. Thank you
Saving the battery life of your iPad
1.Keep Your iDevice Out of the Sun
Whatever you do, don’t leave your iPhone or iPod sitting in a hot car—heat kills batteries faster than any other factor, and your device that used to keep a charge for hours will eventually barely hold a charge, and you’ll have to pay Apple to get it replaced. The same thing holds true for any really hot environment: try and store your device in a cool place.
Reduce the Screen Brightness
If you keep the screen at maximum brightness all the time, you’re wasting a lot of battery life—and the screens these days are so bright anyway that you don’t really need to, especially at night. Head into Settings -> Brightness & Wallpaper to adjust the default level of brightness, which you can probably keep as low as 30% most of the time.
2. Make Sure the Screen Locks Quickly
Even if you’ve adjusted the screen brightness, there’s still no substitute for having it turn off quickly when you’re not using it. Head into General -> Auto-Lock to set the screen lock to happen as quickly as your device will let you. This makes a big difference if you are always picking up your phone and putting it back into your pocket without turning the display off.
3. Use Airplane Mode When You Don’t Need Internet (iPad/iPhone)
If you’re busy spending the next 8 hours playing Angry Birds, there might not be a good reason to have internet access, so you can consider using Airplane Mode, which turns off both Wi-Fi and the regular wireless radio. Of course, this will prevent phone calls if you’re on an iPhone—but if you’re busy with Angry Birds you probably don’t want the interruption anyway.
4. The more important reason to use Airplane Mode is when you’re mobile in an area with a really spotty connection—because the iPhone or iPad will try to stay connected at all times, it’s going to be constantly searching for a connection, which can drain your battery. Head into Settings and flip the Airplane Mode switch right up at the top of the screen.
Use Wi-Fi Instead of 3G if Possible
According to Apple, the iPad will get 10 hours of battery life under regular use with Wi-Fi enabled, but will only get 9 hours using 3G—the iPhone gets 6 for 3G and 10 for Wi-Fi. Of course, if you’re heavily using the Wi-Fi, you’ll still be draining the battery—the point is under similar workloads, Wi-Fi is better than 3G for battery life.
You can enable Wi-Fi under Settings -> Wi-Fi, and then pick the network you’d like to connect to.
5. Reduce or Eliminate Mail & Calendar Checking
If you’ve got a bunch of email, calendar, or contact accounts configured, and they are all being checked and downloading email on a regular basis, you’ll be draining the battery an awful lot faster than you need to.
Head into Settings -> Mail, Contacts, Calendars -> Fetch New Data and change the setting to the least frequent check possible. If you don’t use it often, you can just turn Push off entirely and then manually check when you need to.
6. Reduce or Eliminate Push Notifications
Do you really need notifications from Twitter or whatever other apps you’re running? You can turn these off one-by-one, or turn off Push entirely by heading into Settings -> Notifications, and save a bit of extra battery life since your device won’t be pulling in data for those applications anymore.
7. Reduce or Eliminate System Sounds
This one is probably a little silly, but if you really don’t care for the system sounds you can save a small amount of battery life by removing the sounds. A very, very small amount, most likely. Head into Settings -> General -> Sounds to change them.
8. Disable Location Services
If you don’t really need the location services, you can disable them to save some battery life. Head into Settings -> General and flip the Location Services setting to off.
9. Disable Bluetooth If You Don’t Need It
If you don’t use a Bluetooth headset or keyboard, you should keep the Bluetooth radio disabled to save some extra battery life. Head into Settings -> General -> Bluetooth to flip it on or off.
10. Disable Vibrate Feature in Games
If you’ve got a game that uses the vibrate feature, you can turn that off to save some battery life. This mostly matters if the game heavily uses it, and you’ll need to change the setting for the game. As a side note, and it should go without saying, if you’re running really intensive video games, they will kill your battery very quickly.
11. Charge and Discharge Your Battery Regularly
Your iDevice needs to be fully discharged and recharged at least once a month to operate at maximum efficiency and keep the battery from dying. You’ll also want to make sure that you don’t store the device with a dead battery, as that can also cause the battery to lose charge capability—when your battery dies, make sure to recharge it quickly.
<Edited by Host>
Irem Bright writes and would love your own addition if you got other helpful tips.
Thank you all.

11. Charge and Discharge Your Battery Regularly
Your iDevice needs to be fully discharged and recharged at least once a month to operate at maximum efficiency and keep the battery from dying. You’ll also want to make sure that you don’t store the device with a dead battery, as that can also cause the battery to lose charge capability—when your battery dies, make sure to recharge itquickly
The reason that Apple suggests you drain and recharge your battery once a month is not because it affects the life ofthe battery. What it actually does is calibrate the battery sensor, giving you a more accurate reading.
Other than that, you done an admirable job of summarizing the Knowledge Base article:
http://www.apple.com/batteries/ipad.html
Best of luck.

How to extend iPad's battery life? I've tried everything possible

So basicaly I have this iPad 3 for 2 years now, and the battery keeps on draining. I'm not sure if it reached it charging times limit. I've tried everything possible, disable unneeded stuff, turn off background refresh, auto brightness etc. I've even booked a Genius Bar appointment and the person checked my iPad's calibration and it was OK, and he said its not needed and the cost (in CAD) would be about the same for a new iPad. Also charging is freaking slow too, even when I don't use the iPad while charging. Solutions will be appreciated if there's none I'll wait until the holidays and buy a iOS 8 iPad

Could be the charger, cable or iPad. Plug the USB cable into your computer. It may say "Not Charging", however, it is charging slowly and will verify that the cable is good. If your computer/iTunes does not recognize the iPad, then the cable is probably bad.
Try this first - Reset the iPad by holding down on the Sleep and Home buttons at the same time for about 10-15 seconds until the Apple Logo appears - ignore the red slider - let go of the buttons. (This is equivalent to rebooting your computer.) No data/files will be erased. http://support.apple.com/kb/ht1430
The quickest way (and really the only way) to charge your iPad is with the included 10W or 12W (5W on Mini) USB Power Adapter. iPad will also charge, although more slowly, when attached to a computer with a high-power USB port (many recent Mac computers) or with an iPhone Power Adapter (5W). When attached to a computer via a standard USB port (2.5W, most PCs or older Mac computers) iPad will charge very slowly (but iPad indicates not charging). Make sure your computer is on while charging iPad via USB. If iPad is connected to a computer that’s turned off or is in sleep or standby mode, the iPad battery will continue to drain.
Apple recommends that once a month you let the iPad fully discharge & then recharge to 100%.
How to Calibrate Your Mac, iPhone, or iPad Battery
http://www.macblend.com/how-to-calibrate-your-mac-iphone-or-ipad-battery/
At this link http://www.tomshardware.com/reviews/galaxy-tab-android-tablet,3014-11.html , tests show that the iPad 2 battery (25 watt-hours) will charge to 90% in 3 hours 1 minute. It will charge to 100% in 4 hours 2 minutes. The new iPad has a larger capacity battery (42 watt-hours), so using the 10W charger will obviously take longer. If you are using your iPad while charging, it will take even longer. It's best to turn your new iPad OFF and charge over night. Also look at The iPad's charging challenge explained http://www.macworld.com/article/1150356/ipadcharging.html
Also, if you have a 3rd generation iPad, look at
Apple: iPad Battery Nothing to Get Charged Up About
http://allthingsd.com/20120327/apple-ipad-battery-nothing-to-get-charged-up-abou t/
Apple Explains New iPad's Continued Charging Beyond 100% Battery Level
http://www.macrumors.com/2012/03/27/apple-explains-new-ipads-continued-charging- %20beyond-100-battery-level/
New iPad Takes Much Longer to Charge Than iPad 2
http://www.iphonehacks.com/2012/03/new-ipad-takes-much-longer-to-charge-than-ipa d-2.html
Apple Batteries - iPad http://www.apple.com/batteries/ipad.html
iPhone: Hardware troubleshooting (Power/Battery section also applies to iPad)
http://support.apple.com/kb/TS2802
The Ultimate Guide to Solving iOS Battery Drain
http://www.overthought.org/blog/2014/the-ultimate-guide-to-solving-ios-battery-d rain
Extend iPad Battery Life (Look at pjl123 comment)
https://discussions.apple.com/thread/3921324?tstart=30
iOS 7 Battery Life Draining Too Fast? It’s Easy to Fix
http://osxdaily.com/2013/09/19/ios-7-battery-life-fix/
Poor battery life after installing iOS 7.1? Try these simple tips
http://www.zdnet.com/poor-battery-life-after-installing-ios-7-1-try-these-simple -tips-7000027348/
New iPad Slow to Recharge, Barely Charges During Use
http://www.pcworld.com/article/252326/new_ipad_slow_to_recharge_barely_charges_d uring_use.html
iPad: Charging the battery
http://support.apple.com/kb/HT4060
Charging Tip - Switching to airplane mode turns off battery-draining wireless and cellular access, allowing your iPhone/iPad to recharge up to twice as fast.
Best Practices for iPad Battery Charging
http://www.ilounge.com/index.php/articles/comments/best-practices-for-ipad-batte ry-charging/
How to Save and Prolong the battery life of your new ipad
https://discussions.apple.com/thread/4480944?tstart=0
Prolong battery lifespan for iPad / iPad 2 / iPad 3: charging tips
http://thehowto.wikidot.com/prolong-battery-lifespan-for-ipad
iPhone, iPod, Using the iPad Charger
http://support.apple.com/kb/HT4327
Install and use Battery Doctor HD
http://itunes.apple.com/tw/app/battery-doctor-hd/id459702901?mt=8
To Extend a Device’s Battery Life, Get to Know It Better
http://tinyurl.com/b67c7xz
iPad Battery Replacement
http://www.apple.com/batteries/replacements.html
In rare instances when using the Camera Connection Kit, you may notice that iPad does not charge after using the Camera Connection Kit. Disconnecting and reconnecting the iPad from the charger will resolve this issue.
 Cheers, Tom

Normal battery life for two-year-old iPad?

My first iPad is nearly out of warranty. According to the Apple store 'Genius' app (the little hand held device they seem to look at a great deal), my battery is "normal".
They couldn't define in real-world terms what "normal" was. Does anyone know - is it five hours - eight hours (which would be close to the 80% rule listed here: http://www.apple.com/batteries/ipad.html)
Since I don't have the devices they use to measure "normal", what would you folks suggest as an argument starting-off point?
Here's what I did: pulled up CineXPlayer and looped a 60 minute TV show. I left wi-fi ON, set brightness to auto, and turned the volume down to almost zero, since I wanted to sleep.
With this test, I will get nine hours before the iPad shuts down.
Would I get less if the volume was at say 75%?
Would I get more if the Wi-Fi was turned off?
How many hours at what concoction should be used as a standard for "normal"?
As much as I don't mind paying $99 sometime in the future for a fresh unit, if the battery is out of warrantied specs now, while my warranty is still active...well, that's the kind of Apple-care I would hope for.
PS - I HAVE updated to 5.1.1 and the latest firmware, restored the iPad to factory, then restored from my backup.
Cheers

During the warrranty coverage period, Apple will replace the battery if it drops below 50% of its original capacity. If it is out of warranty, Apple offers a battery replacement for $99, plus $6.95 shipping, subject to local tax.
The specs for the iPad 2 state that you can expect
Up to 10 hours of surfing the web on Wi-Fi, watching video, or listening to music
Up to 9 hours of surfing the web using cellular data network
The fine print on http://www.apple.com/ipad/ipad-2/specs.html says:
Testing conducted by Apple in February 2012 using preproduction iPad units and software. Testing consisted of full battery discharge while performing each of the following tasks: video playback, audio playback, and Internet browsing using Wi-Fi or cellular data network. Video content was a repeated 2-hour 23-minute movie purchased from the iTunes Store. Audio content was a playlist of 358 unique songs, consisting of a combination of songs imported from CDs using iTunes (128-Kbps AAC encoding) and songs purchased from the iTunes Store (256-Kbps AAC encoding). Internet over Wi-Fi and cellular data network tests were conducted using dedicated web and mail servers, browsing snapshot versions of 20 popular web pages, and receiving mail once an hour. All settings were default except: Wi-Fi was associated with a network (except for Internet browsing over cellular data network); the Wi-Fi feature Ask to Join Networks and Auto-Brightness were turned off. Battery life depends on device settings, usage, and many other factors. Battery tests are conducted using specific iPad units; actual results may vary.

How is your New iPad with Retina Display (4Gen) battery life?

I managed to get 6 hrs play out of my NEW ipad4 that connect to wifi and have brightness set 50%. (i said 6hrs because there is a 15% drop in battery each hour) is it good or not?How about yours?

There are some tips for maximising battery life between charges on this page : http://www.apple.com/batteries/ipad.html e.g. turn off notifications, decrease the frequency of checking/fetching emails, turn off wifi if not using it etc

IPad air ,i need to undo the latest update,battery life is the worst ,i can't finish my work like that

TOday i just downloaded the latest update of ios it was for fixing bugs but for my iPad it was for killing battery life time
i used the lowest of brightness and canceled all background refreshing and still bad
i need to undo that update immediately
it's useless now to use my iPad with that battery time

what should i do now !
I'm using the teblet plugged into recharger while using it

Bluetooth keyboard and maximizing iPad battery life

I bought a new Bluetooth keyboard with my iPad. It drains the ipad's battery noticeably faster. Anyone have tips for max battery life using a Bluetooth keyboard?
Blessings,
Patrick.

to get better battery life with any device you minimize its power consumption
1. minimize your brightness
2. turn the wifi off if not needed
3. turn bluetooth off if not needed (in this case duh, but this is for everyone else who has the same question, but not limited to keeping BT running always)
4. turn off some applications (in this case on the ipad it means, don't listen to music while doing something else, thats really the extent of the multitasking right now.
5. some applications just hog more power, they werent developed as energy conscious, keep in mind what apps were designed with a portable nature and what were designed with an around the house nature

IPad 2 with iOS 7.03 loses 12% of battery life in 24h. in Airplane Mode

Hi everyone,
I've always tried to maximize the battery life of my iPad; I fully discharge it and then fully charge all the time, and I don't do more than 1 full charge cicle per week.
In iOS 6 my iPad 2 was functioning nicely, with no noticeable battery drain in standby / sleep mode. The moment I upgraded to iOS 7 i noticed that my battery life was draining without using the iPad, about 1% per hour constantly.
I started to do a little bit of research. I made sure first that the iPad really goes to sleep when I close the smart cover.
I started to disable everything, one by one, removed all notifications, configured email to download only when I ask, disabled backgroun application refresh, closesd all applications before putting the iPad to sleep, etc.
I notice a little bit of improvement in terms of battery life in sleep mode but I still had a visible unacceptable battery drain in sleep mode.
I decided then to start real tests so I started to do the following:
- I fully charged it and fully chaged it
- when it reached 100% charge I kept it 2 more hours in charge
- I closed all apps and then I did a restart by pressing simultanously the home and the power buttons for more than 5 seconds
- I started the iPad, closed the smart cover to put it in sleep mode
- after 24 hours it was showing 87% so I lost 13%
Next test was similar but before putting the iPad to sleep I, put it in Airplane Mode. This time after 24 hours it was showing 88% so I lost 12%
One very weird thing that happened during this last test was that after 24h in Airplane Mode when I opened the lid, and without turning off the Airplane Mode I got a notification that there is a new software upgrade to iOS 7.04 waiting for me to install. REALLY in Airplane Mode . . . ???? I do not understand.
Have you noticed similar battery drain issues in iOS 7, did any of you performed similar tests ?
I consider 12% battery drain in 24 h. in sleep mode unacceptable, really unacceptable
My next test will be to turn it off for 24 hours to see how much is the battery draining when off.
Maybe Apple people have something to say. I have an appointment to the Genius bar today.
I'll keep you guys posted
Titus

Using the battery level meter in this manner is comparable to using your car's fuel gauge to calculate miles per gallon. The only thing that matters is the total amount of operating time from full charge to auto-shutdown.
Use the wall-mount charger that came with the iPad and charge overnight. Do NOT use an iPod/iPhone charger. Do NOT use a computer's USB port. Then, operate it normally until auto shut-down (ignore any low level alerts that may appear). An irony is that doing that test to determine the total operating time is also the procedure necessary to calibrate the battery level meter.
I'm not claiming that you do not have a problem. I am stating, however, that we don't yet know. If the above test does, in fact, indicate a problem, read this.
Also, according to Apple:
Use Your iPad Regularly
For proper reporting of the battery’s state of charge, be sure to go through at least one charge cycle per month (charging the battery to 100% and then completely running it down).
Elsewhere, Apple elaborates and explains that two half-discharges (or four quarter-discharges, etc.) equals one full discharge.

Auto Brightness & battery life iPad 2

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