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Old Mar 12, 2011, 11:26 AM   #1
richard371
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Ipad 2 charging extremely slow

Ive had my ipad 2 plugged into my imac 24 for 2 hours now and it has gone from about 60% to about 80% this seems extremely slow.
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Old Mar 12, 2011, 11:29 AM   #2
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Originally Posted by richard371 View Post
Ive had my ipad 2 plugged into my imac 24 for 2 hours now and it has gone from about 60% to about 80% this seems extremely slow.
Use the wall charger. Don't charge using a computer. This was a common problem with the 1st gen iPad.
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Old Mar 12, 2011, 11:54 AM   #3
richard371
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I tried the charger it came with and it went from 87-89 percent in 10 mins. So it will take 500 mins to charge from 0?
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Old Mar 12, 2011, 12:15 PM   #4
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This is why I dont have the battery % disabled on any product. It makes you way too paranoid and think something is wrong.

Last edited by Mystikal; Mar 18, 2011 at 05:47 PM.
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Old Mar 12, 2011, 12:19 PM   #5
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Originally Posted by richard371 View Post
I tried the charger it came with and it went from 87-89 percent in 10 mins. So it will take 500 mins to charge from 0?
The first 80% charges quick then the last 20% trickle charges so that's what yours took 10 minutes to go 2% because your above 80%
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Old Mar 12, 2011, 02:09 PM   #6
claygreenberg
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Mine is charging really slowly, too. Using the supplied 10W adaptor and cable, plugged directly into the wall. And I'm at 54% right now, so it's not the trickle theory.
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Old Mar 12, 2011, 02:14 PM   #7
Next Tuesday
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I drained my battery completely overnight. I plugged it in 3 hours ago and its only at 31%. Thats pretty slow if you ask me. Im using the charger that came with the ipad plugged into the wall. a

Last edited by Next Tuesday; Mar 12, 2011 at 02:14 PM. Reason: amended
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Old Mar 12, 2011, 02:14 PM   #8
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Wirelessly posted (Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_3 like Mac OS X; en-us) AppleWebKit/533.17.9 (KHTML, like Gecko) Version/5.0.2 Mobile/8C148 Safari/6533.18.5)

The first time you get an iPad, don't charge it, let it fall below 10% and then charge it.

This guarantees a better battery (and has been proven)

After that, charge via wall for 10 full hours, then use it. It should last like 2 days before you will have to charge it again with heavy use on 50% brightness.

Never let an iPad battery go below 20% before charing it.

Do this with all iDevices to maximize battery life.
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Old Mar 12, 2011, 02:16 PM   #9
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Originally Posted by Next Tuesday View Post
I drained my battery completely overnight. I plugged it in 3 hours ago and its only at 31%. Thats pretty slow if you ask me. Im using the charger that came with the ipad plugged into the wall. a
Welcome to the opacity.
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Old Mar 12, 2011, 02:17 PM   #10
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Originally Posted by iMattcotv View Post

Never let an iPad battery go below 20% before charing it.

Do this with all iDevices to maximize battery life.
What is the point of "maximizing battery life" if you are limiting yourself to only using 80% of its capacity right off the bat?
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Old Mar 12, 2011, 02:17 PM   #11
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Originally Posted by richard371 View Post
Ive had my ipad 2 plugged into my imac 24 for 2 hours now and it has gone from about 60% to about 80% this seems extremely slow.
A lot of USB ports are not powerful enough to charge the iPad. Advice is to use the wall charger, or if thats not possible try changing the USB port you are using. One of the ports on my MB charge the iPad and the other doesn't so it's worth moving it around to see if it makes a difference.
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Old Mar 12, 2011, 02:18 PM   #12
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Quote:
Originally Posted by iMattcotv View Post
Wirelessly posted (Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_3 like Mac OS X; en-us) AppleWebKit/533.17.9 (KHTML, like Gecko) Version/5.0.2 Mobile/8C148 Safari/6533.18.5)

The first time you get an iPad, don't charge it, let it fall below 10% and then charge it.

This guarantees a better battery (and has been proven)


Never let an iPad battery go below 20% before charing it.

Do this with all iDevices to maximize battery life.
None of that makes sense:

http://www.apple.com/batteries/ipad.html
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Old Mar 12, 2011, 02:19 PM   #13
ToeJamathon
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Quote:
Originally Posted by iMattcotv View Post
Wirelessly posted (Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_3 like Mac OS X; en-us) AppleWebKit/533.17.9 (KHTML, like Gecko) Version/5.0.2 Mobile/8C148 Safari/6533.18.5)

The first time you get an iPad, don't charge it, let it fall below 10% and then charge it.

This guarantees a better battery (and has been proven)

After that, charge via wall for 10 full hours, then use it. It should last like 2 days before you will have to charge it again with heavy use on 50% brightness.

Never let an iPad battery go below 20% before charing it.

Do this with all iDevices to maximize battery life.
Did you mean below, not above?

If so, are you supposed to charge them before they reach low battery to get the best out of it?
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Old Mar 12, 2011, 02:25 PM   #14
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Originally Posted by richard371 View Post
I tried the charger it came with and it went from 87-89 percent in 10 mins. So it will take 500 mins to charge from 0?
No. Batteries charge quickly up to 80%, and then it slows down a lot.
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Old Mar 12, 2011, 02:31 PM   #15
Chilean.Miner
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everything is fine here, are you trying to charge in a hub?
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Old Mar 12, 2011, 02:36 PM   #16
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This is becoming a common problem... There's word today that its only affecting units within a certain batch number and that apple will have to recall the faulty units.
Where did you read this?
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Old Mar 12, 2011, 05:27 PM   #17
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This is why I dont have the battery % enabled on any product. It makes you way too paranoid and think something is wrong.
LOL

Me too!
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Old Mar 12, 2011, 05:30 PM   #18
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Quote:
Originally Posted by iMattcotv View Post

The first time you get an iPad, don't charge it, let it fall below 10% and then charge it.

This guarantees a better battery (and has been proven)

After that, charge via wall for 10 full hours, then use it. It should last like 2 days before you will have to charge it again with heavy use on 50% brightness.

Never let an iPad battery go below 20% before charing it.

Do this with all iDevices to maximize battery life.
Tell me where you heard this and who "proved" it.
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Old Mar 12, 2011, 05:34 PM   #19
Julien
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Here is the way to look at it. Charging an iPhone is like fueling up a MINI. Small tank is quick to fill. The iPad has fuel tanks (BIG batteries) like a large truck. Using the same size hose it takes a LOT longer to fill up. The charger that comes with the iPad has a larger "hose" but it still a gigantic tank to fill.
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Old Mar 12, 2011, 05:48 PM   #20
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Originally Posted by iMattcotv View Post
Wirelessly posted (Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_3 like Mac OS X; en-us) AppleWebKit/533.17.9 (KHTML, like Gecko) Version/5.0.2 Mobile/8C148 Safari/6533.18.5)

The first time you get an iPad, don't charge it, let it fall below 10% and then charge it.

This guarantees a better battery (and has been proven)

After that, charge via wall for 10 full hours, then use it. It should last like 2 days before you will have to charge it again with heavy use on 50% brightness.

Never let an iPad battery go below 20% before charing it.

Do this with all iDevices to maximize battery life.
This is completely false. Don't make up claims like "its been proven" when it clearly hasn't.

It's true for devices with nickel-based batteries, but none of Apple's iOS devices have ever had a nickel-based battery. With lithium polymer batteries, keeping them charged as much as possible is the best way to maintain battery life. Running them down can cause damage and shorten battery life. See more straight from Apple here: http://www.apple.com/batteries/
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Old Mar 15, 2011, 04:33 PM   #21
h00ligan
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I'm using the wall adaptor and I definitely consider the iPad 2 to charge slower than the first.

Wit...guess I better check it's not plugged into the iPhone charger.,,...it's not.

Very slow charging it seems. Hmm
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Old Mar 15, 2011, 05:03 PM   #22
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Here is the way to look at it. Charging an iPhone is like fueling up a MINI. Small tank is quick to fill. The iPad has fuel tanks (BIG batteries) like a large truck. Using the same size hose it takes a LOT longer to fill up. The charger that comes with the iPad has a larger "hose" but it still a gigantic tank to fill.
Agreed. The iPad has a 25 watt hour battery. It will take a little longer than say an iPhone to charge. always use the 10 watt wall charger to decrease charging times.
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Old Mar 18, 2011, 05:32 PM   #23
Dougstrickland
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All about the adapter

I picked up a small USB volt/amp meter on Meritline that goes inline between the power adapter and the iWhatever (or any USB device actually).

I found that on my MBP USB ports charging an iPad 2 I get about 400mA charging at any level of battery. From the supplied adapter it charges at about 900 mA.

The charging still takes awhile, but it is CLEARLY dependent on what you plug it into to charge it.
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Old Mar 18, 2011, 05:37 PM   #24
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I charge it using my mbp charger and it's damn fast.
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Old Mar 18, 2011, 05:47 PM   #25
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Originally Posted by iMattcotv View Post
Wirelessly posted (Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_3 like Mac OS X; en-us) AppleWebKit/533.17.9 (KHTML, like Gecko) Version/5.0.2 Mobile/8C148 Safari/6533.18.5)


Never let an iPad battery go below 20% before charing it.

Do this with all iDevices to maximize battery life.
Bad advice. Apple says to fully discharge once per month.
http://www.apple.com/batteries/ipad.html
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