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Battery takes forever to charge

firstapple said:
The battery is definitely larger so it will take longer to charge, how long exactly I don't think is known yet. The main this is the battery may need to be calibrated... Let it drain completely, then charge it up fully. This is what I will be doing.
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I'm pretty certain that the modern Apple batteries (that are built-in and not user-replaceable) do not require calibration. The process is carried out in the factory and never needs to be done again.

You'll see that calibration isn't even mentioned on the iPad battery page and is not necessary for Macs with built-in batteries.

It is, however, good to completely discharge and recharge the battery at least once per month.
 
My charge time from 6% back to 100 was about 9 hours. Seems longer than what some of you posted but about what I expected. Wish it came with a stronger charger that would charge it quicker though. Give and take, give and take. I'm ok with it. :D

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Get a decent sized external battery. There are plenty of them to choose from.

Here is one for $50 that should be able to charge the iPad 3 completely--twice--and probably an iPhone too:
http://www.google.com/products/catal...wAA#ps-sellers




I have this exact charger. It indeed would charge original iPad twice and still have more juice. Worth my investment. I do think it may only charge the new iPad battery only once though.
 
MarcBook said:
I'm pretty certain that the modern Apple batteries (that are built-in and not user-replaceable) do not require calibration. The process is carried out in the factory and never needs to be done again.

You'll see that calibration isn't even mentioned on the iPad battery page and is not necessary for Macs with built-in batteries.

It is, however, good to completely discharge and recharge the battery at least once per month.
Click to expand...
Ummmm... I suppose it depends what you mean by "calibration".
iPad battery page you linked to said:
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).
Click to expand...
 
Lasts night, I drained my iPad last night. And I mean until the iPad turned off. I plugged it in at about 12:30 am and, when I checked at 6:30am, it was 100%. And I actually saw it change from 99 to 100, which was awesome timing

It is plugged into a wall with the included adapter, through the dock. So, it should take about 6 hours to charge from 0. Also, with intermittent use, it is at 78% so I won't need to charge tonight.
 
Whoa?

Coincidence? I did the same thing last night! 12:30-6:30) Its true though, that it charges from zero to 100% in about six hours, give or take. Not bad for me since i'm always an overnighter when it comes to iPad charging.
 
Ran my ipad down to 0% last night at around 9:40 pm and stuck it on the charger. Set my iphone clock stop watch app to run to see roughly how long it takes to charge. Woke up this morning at around 4:36 am and checked my ipad 3 and it was fully charged to 100%. I stopped the stopwatch at 6 hrs 51 mins. So not sure exactly how long it took to charge since I didn't wake up to keep checking it but it will charge to 100% in less than 7 hrs based on my test.

I usually charge my ipad and iphone each night so it is read for the next day.

Just to run it down to 0% percent though I had to use the Splashtop remote app which always drains the battery quicker, screen at 100% (I usually keep it at 50% since higher hurts my eyes), and have blutooth on and also streamed a movie through Airvideo at 2048 kbit/s live conversion over WiFi. I started at at around 47% last night when I got home from work around 5:20 pm. With the screen at full brightness and using it for an extended time the back of the ipad did become a bit warm if you feel it in the bottom left corner/side when holding it in protrait. However, when I run it at 50% brightness like I normally do for extended periods of time, I have no heating up issue. It stays the same temperature (or atleast feels like it) as when it is off. So the only thing different that I did last night from any other night while owning the iPad 3 was run it at full brightness, so I am going with that is the culprit with the warming up issue for people.

Oh, BTW, the charger I used was http://store.apple.com/us/product/MC359LL/A?fnode=MTc0MjU4NjA from the apple store. Should be the same wattage as the one that comes with the iPad.

Edit: Just surfed these forums and a bunch of others and watched an 40 min TV show (downloaded to my ipad from iTunes this morning) from 04:36 to 06:55 am and and dropped 11% in battery power.
 
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Came into work around 10am this morning with about 20% battery and plugged it into the outlet charger right away. I have used my iPad on and off during the day and currently have 64%. This is not good imho. Wonder if there will be any third-party chargers with higher voltage to charge iPad faster...
 
Constantine1337 said:
Came into work around 10am this morning with about 20% battery and plugged it into the outlet charger right away. I have used my iPad on and off during the day and currently have 64%. This is not good imho. Wonder if there will be any third-party chargers with higher voltage to charge iPad faster...
Click to expand...

mine charged from 5% to 100% in 5 hours.
 
The app ACCURA HD is great for letting you know how much time it takes to fully charge your battery. Even though it said 100% battery on my iPad, it said 99% in Accura with 2 minutes of charge time left. It's pretty accurate. It also lets me know how long it will take to drain my battery; according to the activity on my iPad (Game Play, 3D Game Play, WiFi Internet, Audio Playback, etc.).
 
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