Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
Potentially more interesting is Consumer Reports' note that their new iPad didn't charge at all when the game was running. In fact, the battery continued to drain slightly under the extremely heavy CPU and GPU load from Infinity Blade II.

It's seems that under extremely heavy processor usage, the iPad is unable to draw sufficient power from its USB connection to both power the device and charge the battery simultaneously.

This IS NOT new, even to the Ipad 2.

I've had the same issue with my older iPad 2 but didn't really consider it a "problem" even though it's far from desirable. It's just a function of the fact that the machine is using more power than can be fed into it over USB.

For example when I have GPS navigation going, and pandora going while the cellular modem is moving data back and forth, and wifi is roaming, and bluetooth is roaming, all which the screen and speaker is going the iPad 2 drains more power than can be put in, even with a 2.1A connection.

That's not a design fault, or a failure. It's just I'm taxing everything at once.

Ideally you want to recharge faster than you use, but that is not always possible or practical given a number of constraints.

Now that said the Ipad 3 does work harder and faster and should logically burn through power faster than the Ipad 2 (hence the bigger battery) so what Apple DOES not need to do is figure out a way to get more power to the battery faster. But that's what Ipad 4's are for....

It's annoying it doesn't keep pace but it's not overly outrageous how fast it goes down.
 
Consumer Reports is still being published? Why would anyone take advice from a publication that trys to test and report on EVERYTHING? When you review toasters and sports cars and sheets and tablet computers, you can't do any of it very well.

They know a little about a lot of things and not much about any one thing.
 
Calm down man. I must of clicked the wrong post to respond to some how. I was attempting to respond to the person wondering if they only commented on the negative stuff....

Oh and BTW, the car charger will be slower because it operates at a lower voltage. Meaning less watts charge per time period. I doubt it has anything to do with Apple or not Apple.

Errr. No, that isnt true. It is converted to 5 VDC regardless. 2A car charger is nearly identical to your 10 watt power supply. P=2A*5V
 
I think this sentence is worded to mean something other than that which was intended.

I ordered a Smart Cover in anticipation of buying the new iPad, but now I might just get the iPad 2. I'll wait for a while to see if Apple decides to do something about it.

I'm not concerned with the heat. It's the battery that seems to be annoying.

I also appreciate the "old timers" at CR that objectively and independently tests all of these devices. I've been buying Apple for 20 years and I hope I never become a fanatic.

----------



Whenever I know I'm going to tax the battery, I want to be plugged in just for peace of mind. When an outlet is available, I'm always plugged in.


Wow...some people need to find treatment for their OCD. Seriously...You guys are ridiculous. My iPhone 4S does the same thing when I have it plugged in and am playing a graphic intense game or using GPS.

----------


Awesome....no ****.
 
Wirelessly posted (Mozilla/5.0 (iPhone; CPU iPhone OS 5_1 like Mac OS X) AppleWebKit/534.46 (KHTML, like Gecko) Version/5.1 Mobile/9B179 Safari/7534.48.3)

I'm sure apple will do something to fix it....
I heard they was going to call it the fryPad but some skillet company in China already had the name so they changed it to just the new iPad at the last minute.
 
CR didn't just "ding" Apple on the iPhone 4 antenna - they went as far as to specifically recommend *no one purchase* what became the greatest selling and most loved phone in history. It was an absolutely baffling move by CR.

What was baffling was that they were the ones to point out that the issue was only really an issue in areas with lousy service quality. Which they then ignored for their own followups
 
1- Walk into any Apple Store.

2- Pick up any iPad on display.

3- Notice how none of these models show 100% battery, most are between 50-75% ...but yet they have always been plugged in.

I never use my iPad tethered so it's a non-issue for me, but an understandable issue for those who do.

I will be very impressed if Apple can address this with a software update without affecting performance.

...it's these moments that I miss seeing an email reply from Steve Jobs posted here to some random customer who emailed him... I wonder what his reply for this issue would have been....
 
Wirelessly posted (iPhone 4: Mozilla/5.0 (iPhone; CPU iPhone OS 5_1 like Mac OS X) AppleWebKit/534.46 (KHTML, like Gecko) Version/5.1 Mobile/9B176 Safari/7534.48.3)

I'll put my 2 cents in...

At work we have an iPad demo, and just having it on all the time prevents the battery from charging. When I came in, it was dead. It charged 2% over 3 hours. I still love the product, but this isn't looking good. There's no more Steve to put on a determined face and sugar coat the problem.

I love both Steve and Apple, btw.
 
At work we have an iPad demo, and just having it on all the time prevents the battery from charging. When I came in, it was dead. It charged 2% over 3 hours. I still love the product, but this isn't looking good. There's no more Steve to put on a determined face and sugar coat the problem.

Are you charging it using the iPad charger?
 
Both of these things appear to be non-issues. Just because it gets a little warmer then the iPad 2 isn't a big deal.

As far as not being able to charge under load... Well just stop using it for awhile and let it charge.
 
You'll burn your kaboodles off! Do not place this on your lap. Where's my lawyer Jackie Chiles?
 
]Wirelessly posted (Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Win64; x64; Trident/5.0; .NET CLR 2.0.50727; SLCC2; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; .NET4.0E))

There's no more Steve...

I love both Steve and Apple, btw.

Stay with the first line - necrophilia isn't cool.
 
Lets not get too heated?

I think that the main reason that apple have not gone full 4 core CPU is because of heating concerns.

The design of the iPad is a fully enclosed case, with no vents or fan. This is what we want, for a mobile device really, a compromise of raw CPU power for the benefit of lightness, coolness and long battery performance...

The MacBook design is great at managing heat, with either single (13 inch) or dual (15/17 inch fans, with heatsinks.

The think that would worry me if I had an iPad3 would be the effect of enclosed heat from a CPU with no heatsink, not on my lap, but on the inner hardware of the device it's self. Too much uneven heat can cause problems with printed circuit boards. Over time, too much (unmanaged) heat can promote mother board failures. Nothing that I have seen of the tear downs show that the hardware design is managing the heat from the A5X seriously. Yes, they have put a metal heat cap of the chip, but that is to protect the chip it's self, not the solder joints around it..
 
Nothing that I have seen of the tear downs show that the hardware design is managing the heat from the A5X seriously. Yes, they have put a metal heat cap of the chip, but that is to protect the chip it's self, not the solder joints around it..


You're not going to get solder joint issues even at the 116F max temp (that's 44C)
 
Wow how original.

Well it's the truth. If the charger can't keep up then reduce the load so it charges. Problem solved. I mean how many people are going to operate this device at full load for hours? Very few. If it is still an issue then Apple could offer a high performance charger as an option for the very few people that this issue effects.
 
I once used an iPad and the charge dropped. IT DROPPED! I had to plug it in and re-charge. OMG: JIPOFF RIPOFF! And it got WARM when it was working. wtf is that crap? Nearly got a tan from that 110ºF area where I wasn't holding it. It was warm enough to melt butter!! I have to take some Prozzac before I lose my mind...
 
not charging sounds like a major flaw to me

To defend Apple - other systems modify the charging characteristics based on the input source.

A couple of my Dell laptops are able to communicate with the power brick and figure out what to do.

With one laptop I ordered the "airplane adapter" from the Dell site along with the laptop.

It actually shipped with a Targus adapter that works fine - except that the Dell laptop can't talk to it, and falls back to a "power only" mode. When I'm connected to seat power, the adapter will supply all power needed for the laptop - but it won't charge.

A later order of the same laptop came with a Dell-branded airplane adapter (airplane + AC) that the laptop (even the older one) recognized and would both play and charge on the plane.

...except on Cathay Pacific business class, where the current draw would shut down the seat port. On Cathay, I needed to reboot the laptop with the second core disabled until the battery was charged.

Apple should, however, clearly explain the situation so that users will understand when their shiny toy won't charge. (And, in particular, if under any circumstances it won't charge while connected to the Apple-supplied power-brick Apple should fix that post-haste.)
 
Honestly I agree with CR, both then and now. They were right to ding Apple for the antenna problems with the iPhone 4, and they are right to ding them for shipping a device where the battery drains even when you have it plugged in.

The "iPad 3" may be fantastic, but CR is pointing out valid concerns - concerns that have me waiting to buy the iPad 3 until these concerns are fleshed out a bit more.

This is a valid point. When it is pointed out to you that under normal real world usage, the iPad 3's battery lasts three days (about three hours a day of tablet usage has to be well above average) and during those three days you simply need to find 3 to 4 hours of time to plug it in when you aren't using it (yes, if you give it three hours of charging after the first day, it will be back to full strength, it only takes six hours to charge from scratch). Do you think you will be able to find 3 to 4 hours over a three day period where you can find a wall outlet and connect your iPad to it? Planning on sleeping during that three day period? That might be a good charging time.

The battery is giant and fully sufficient. This is a ridiculous issue.
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.