Ralph Landry1 wrote:
Have you gone to Settings > Notifications and changed to Manually? That will mean it only checks when you want it to do so.
You can also go to Settings > mail, contacts, Calendars and set Fetch New Data to Manually so it does not keep checking for mail, etc.
Yup, did both those things when I first got it (it was even worse before I did that), but I haven't been able to figure out why I continue to have the uneven performance with everything set to manual.
Have you gone to Settings > General > Bluetooty and turned that OFF?
You can also go to Settings > General > Spotlight Search and uncheck things you don't want to spend resources searching through regularly.
When you will not be accessing WiFi or cell networks if you have that model, you can put it in Airplane Mode which will shutdown that radio transmitter, also.
I'm mostly concerned about the drain while in standby. I would not think that Bluetooth/WifI etc should be affected while in standby. For example, on my iPad 2, it NEVER drains more than 1% overnight while in standby in the exact same environment. In contrast, when my new iPad is in standby, it sometimes drains more than 10% overnight, but then there are times it doesn't drain at all overnight. It is this inconsistent behavior that is baffling.
The quickest way (and really the only way) to charge your iPad is with the included 10W 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 (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
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
Apple Explains New iPad's Continued Charging Beyond 100% Battery Level
New iPad Takes Much Longer to Charge Than iPad 2
Apple Batteries - iPad http://www.apple.com/batteries/ipad.html
Extend iPad Battery Life (Look at pjl123 comment)
New iPad Slow to Recharge, Barely Charges During Use
Tips About Charging for New iPad 3
Prolong battery lifespan for iPad / iPad 2 / iPad 3: charging tips
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.