Battery takes forever to charge

MultiMediaWill

macrumors 68000
Original poster
Aug 1, 2010
1,613
302
Minneapolis
Why does my new iPad take forever to charge? It has been on the provided apple wall charger all day and still not at 100%. If the iPad is gonna take 24 hours to fully charge then I don't want it. Anyone else having this issue?
 

DS3

macrumors 6502a
Mar 7, 2011
503
0
...what did you start charging it from?

I still havnt seen a definitive answer, but the battery has 70% so it might take 70% longer to charge. But still, its not THAT crazy slow.
 

MultiMediaWill

macrumors 68000
Original poster
Aug 1, 2010
1,613
302
Minneapolis
...what did you start charging it from?

I still havnt seen a definitive answer, but the battery has 70% so it might take 70% longer to charge. But still, its not THAT crazy slow.
I started charging at 75% and in 3 hours has gone to 88%. In the last 1 hour it has only gone from 86% to 88%. This is ridiculous!
 

grabes

macrumors newbie
Mar 16, 2012
8
0
I am having almost the same problem.. I am averaging 1% charge over a period of 10 minutes (with it sleeping.) If I am using it, I have yet to see a capacity increase... In theory it would take me about 12 hours to recharge my ipad..
 

GoCubsGo

macrumors Nehalem
Feb 19, 2005
35,743
142
I learned this today about the new iPad from twitter.
It explains things a lot and I hope people get it.

The new iPad has a 42.5wH (11,666mAh) battery. The iPad 2 had a 25wH (6944mAh) battery.

Charge time = forever.
 

firstapple

macrumors 6502a
Sep 25, 2007
991
19
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.
 

foam

macrumors member
Feb 16, 2012
45
0
Are you guys charging through USB or wall? USB always charges really slow
 

ixodes

macrumors 601
Jan 11, 2012
4,423
2
Pacific Coast, USA
There's no problem.

The good news is the battery is huge and will return long run times. Therefore... it's perfectly normal to require longer periods to charge.

Just plug it in at the end of the day, let it charge while you sleep and you're set to go for the following day.
 

grabes

macrumors newbie
Mar 16, 2012
8
0
I am charging through the wall, and now I am struggling to add 1% over a 10 minute period. 15 minutes for 1% is my current average.
 

nfl46

macrumors 604
Oct 5, 2008
6,944
4,036
Sorry to say, but the battery is going to take a longer time to charge than the iPad 2. This needed to be in done in order to achieve the same battery life as the iPad 2. The iPad 3 battery is larger.

P.S. - it takes a while for me as well.
 

Oppressed

macrumors 65816
Aug 15, 2010
1,265
10
My biggest issue is that it does not seem to charge while plugged in AND using it...

Yes wall charger.
 

Michael CM1

macrumors 603
Feb 4, 2008
5,676
272
I learned this today about the new iPad from twitter.
It explains things a lot and I hope people get it.

The new iPad has a 42.5wH (11,666mAh) battery. The iPad 2 had a 25wH (6944mAh) battery.

Charge time = forever.
This!

Takes a bigger battery to power more processing and graphics power. Unless you up the voltage, which isn't going to happen, charge time will slow down. At least I think the voltage is standard for the wall adapters. Someone may have to correct me.
 

grabes

macrumors newbie
Mar 16, 2012
8
0
My biggest issue is that it does not seem to charge while plugged in AND using it...

Yes wall charger.
Same issue, people are claiming its the bigger battery, but unfortunately their math is wrong. 14-16hrs of charging should not be necessary to charge this device. Try turning your iPad off and on and see if you see some strange behavior... I saw mine go from 96-92 in about 5 seconds while it "calibrated." At the current status of things I would have to let my iPad probably charge for 30 hours straight to possibly charge it to 100%. I am having my friend test his readings against mine.
 

Stetrain

macrumors 68040
Feb 6, 2009
3,547
17
Are you using it while charging it? It should charge must faster when you put it to sleep.
 

bobright

macrumors 601
Jun 29, 2010
4,754
17
There's no problem.

The good news is the battery is huge and will return long run times. Therefore... it's perfectly normal to require longer periods to charge.

Just plug it in at the end of the day, let it charge while you sleep and you're set to go for the following day.
I don't think we get longer periods of run time. The extra battery is needed to output triple the display resolution. It might even be worse as far as battery drainage, but that I dont know yet.
 

grabes

macrumors newbie
Mar 16, 2012
8
0
I haven't tested this theory, but I think it may be possible that if plugged into the 10W charger that you could possibly LOSE battery capacity while playing a power demanding game.
 

Viper2005

macrumors 6502
Dec 2, 2007
444
216
Canada
I think its best to let it charge overnight... it might just take 5 hours at the rate its going right now.
 

DS3

macrumors 6502a
Mar 7, 2011
503
0
Yeah the iPad 2 charged fast enough that I didn't have to actively consider battery life. I wouldn't let it charge overnight, I'd just charge it up while I used my PC and it would never end up below 50%.

iPad 3 seems like I'll need to switch to the overnight charge when Im heavily using it.