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is charging on new ipad this slow ?

Surf Monkey said:
Not true. Lithium-ion batteries can be charged at any point in the discharge cycle without effecting the life or functionality of the battery.
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Not true. Lithium-ion batteries must be charged as soon as possible to prevent badly affecting the life or functionality of the battery.

FTFY.

(That's not the case for long-term storage, but since you have no way to remove the battery keeping it charged is your best option..)
 
Chris Blount said:
Are you using the same charging cord that came with it? That would make a difference.
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The charging cord is the exact same for the new and old iPads. The new iPad will take longer to charge because the battery has almost twice the capacity of the iPad/iPad 2 battery (42.5 MaH new iPad, 25 MaH older iPads).
 
I'm no electrical engineer, but there must be a formula for calculating the charge time. Is it as simple as 42.5/25 = 1.7 ?

So in other words, if it took 4 hours to charge an iPad 2, then would it take 6.8 hours to charge an iPad 3 ?
 
Batavian said:
I'm no electrical engineer, but there must be a formula for calculating the charge time. Is it as simple as 42.5/25 = 1.7 ?

So in other words, if it took 4 hours to charge an iPad 2, then would it take 6.8 hours to charge an iPad 3 ?
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Which is just about what a lot of us are seeing during our charge cycles from 0-100.
 
Batavian said:
I'm no electrical engineer, but there must be a formula for calculating the charge time. Is it as simple as 42.5/25 = 1.7 ?

So in other words, if it took 4 hours to charge an iPad 2, then would it take 6.8 hours to charge an iPad 3 ?
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That's basically dead-on. The AC adapter included with the new iPad is the exact same one that the prior versions shipped with, so even on AC you will see the same time difference. The general advice has been for people to charge the new iPad overnight due to the longer charge time.
 
burne said:
Not true. Lithium-ion batteries must be charged as soon as possible to prevent badly affecting the life or functionality of the battery.

FTFY.

(That's not the case for long-term storage, but since you have no way to remove the battery keeping it charged is your best option..)
Click to expand...

Keeping it charged is a separate issue than what I was responding to.
 
burne said:
Not true. Lithium-ion batteries must be charged as soon as possible to prevent badly affecting the life or functionality of the battery.

FTFY.

(That's not the case for long-term storage, but since you have no way to remove the battery keeping it charged is your best option..)
Click to expand...

This is true. For longer battery life you should plug when ever it is convenient. Multiple short charges are better than fewer long charges.

That being said, just keep it simple and charge before you go to sleep.
 
Use the cable that comes with the iPad 3. Do not use an older cable it should be a lot faster. And yes it takes a long time to charge about 5 to 6 hours. And please don't complain because the reason why it's taking so long is because Apple is decided not to increased current for the battery. The smaller the current value the less wear and tear to put on a battery. The faster the current value the faster you'll charge
 
Batavian said:
I'm no electrical engineer, but there must be a formula for calculating the charge time. Is it as simple as 42.5/25 = 1.7 ?

So in other words, if it took 4 hours to charge an iPad 2, then would it take 6.8 hours to charge an iPad 3 ?
Click to expand...

It is likely not that easy as the battery charges faster at first and the circuitry tapers off the charge at the end from what I understand.:apple:

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burne said:
Not true. Lithium-ion batteries must be charged as soon as possible to prevent badly affecting the life or functionality of the battery.

FTFY.

(That's not the case for long-term storage, but since you have no way to remove the battery keeping it charged is your best option..)
Click to expand...

Sorry but YOUR statement is not true:(

In the very end there is little a user can do to GREATLY effect the capacity or longevity of your battery, except running it to dead with will shorten the life quickly.

You iPad battery will perform just fine for 3 years or more with out you noticing any decrease in capacity. Most will have traded or sold their device by then.

Best to stop the worring and just enjoy your iPad!
 
I don't understand the complaints with the charge time just put it on the charger overnight or hook it up to the charger if it dies in the middle of the day so it charges when using it.
 
iEvolution said:
I don't understand the complaints with the charge time just put it on the charger overnight or hook it up to the charger if it dies in the middle of the day so it charges when using it.
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I know, do people not sleep? I went to bed last night at 2am and it was 21 percent. I woke up at 9:30 and it was at 100 percent. I wont need to charge it again now until bedtime. I don't see how that causes me any problem.
 
iEvolution said:
I don't understand the complaints with the charge time just put it on the charger overnight or hook it up to the charger if it dies in the middle of the day so it charges when using it.
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Frenchjay said:
I know, do people not sleep? I went to bed last night at 2am and it was 21 percent. I woke up at 9:30 and it was at 100 percent. I wont need to charge it again now until bedtime. I don't see how that causes me any problem.
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I have to insert a tertiary concurrence here. The best recommendation is to charge it while sleeping, whenever or however long that may be; odds are its long enough to fully charge the iPad, especially if the device is not fully discharged. I did learn my lesson when I used it until the battery completely depleted, and put it on the charger over night only to wake up to an 80% charge. So, I now charge it overnight everynight no matter the battery level.
 
My iPad charges every time from 0 to 100% in 6.5 hours. It lasts 3 days without having to charge, average use not heavy and not light.
 
Why on earth would it matter which USB cable (not adapter) you use to charge your iPad? I get that there's a difference between the adapter for the iPad and the iPhone, but a USB cord is a USB cord.
 
St. Germain said:
Why on earth would it matter which USB cable (not adapter) you use to charge your iPad? I get that there's a difference between the adapter for the iPad and the iPhone, but a USB cord is a USB cord.
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Basically the qaulity of the cord and how many amps it can handle. 2 amps is a lot for a small cord.

Think of amps as the amount of water flowing through a hose. The smaller the hose, the less water that can flow through.
 
Chris Blount said:
Basically the qaulity of the cord and how many amps it can handle. 2 amps is a lot for a small cord.

Think of amps as the amount of water flowing through a hose. The smaller the hose, the less water that can flow through.
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The amps is reall like the water pressure in the hose while the voltage is the amount of water flowing. 2 amps is a LOT for the little wire hooked up to the charger. Not knowing the voltage and wattage, I think your 2 amps figure is high.
 
whtrbt7 said:
Wow, lots of urban myths here. So here are the facts: Li-ion batteries have about 1000 charge cycles on them. This does NOT mean you charge it 1000 times and it dies. It means that each full charge cycle when you deplete a full 1000 charges and decharges, the battery will become less effective. Charging this huge battery in the 2012 iPad will take a while regardless of the type of charger you have. The fastest charger at 2.1 Amps will charge the iPad to full in about 6-8 hours depending on your adapter. If you're using an iPhone charger, it can go 1 of 2 ways: 1 you can possibly have your iPad charge to 100% in about 10-12 hours, or 2 you can start draining battery life on the iPad until it's dead. Backflow of the charge can cause your iPad to drain battery life. You'll want to use the supplied iPad charger or a 2.1 amp charger that will force the charge. You can charge the iPad at any point without hurting the battery. I normally keep mine charged in dock until I need it. You also can't overcharge the battery due to USB 2.0 standards.
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Umm, That's not true at all, there isn't a direct connection from the dock port to the iPads battery. What you're experiencing isn't backflow, you're just using up more than 1 amp of the current max that the iPhone wall adapter can put out. For example, let's say you're running a high powered game and aveyour screen at max brightness so the total iPad current draw is 1.5 amps. 1 amp will come out of the iPhone power adapter and 0.5 amp will come from the battery. So while it will say charging on the icon, you're actually using the battery too and draining it.


Stealthipad said:
The amps is reall like the water pressure in the hose while the voltage is the amount of water flowing. 2 amps is a LOT for the little wire hooked up to the charger. Not knowing the voltage and wattage, I think your 2 amps figure is high.
Click to expand...

Look on the side of your iPad power adapter, it should say 5.1v and 2.1A. So he's right.
 
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