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Battery takes forever to charge

M

MultiMediaWill

macrumors 68000
Original poster
Aug 1, 2010
1,634
378
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?
 
...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.
 
DS3 said:
...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.
Click to expand...

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!
 
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..
 
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.
 
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.
 
Are you guys charging through USB or wall? USB always charges really slow
 
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 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.
 
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.
 
My biggest issue is that it does not seem to charge while plugged in AND using it...

Yes wall charger.
 
jessica. said:
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.
Click to expand...

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.
 
Oppressed said:
My biggest issue is that it does not seem to charge while plugged in AND using it...

Yes wall charger.
Click to expand...

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.
 
Are you using it while charging it? It should charge must faster when you put it to sleep.
 
ixodes said:
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.
Click to expand...

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.
 
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.
 
I think its best to let it charge overnight... it might just take 5 hours at the rate its going right now.
 
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.
 
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