Sidebar Sidebar
Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.

More iPad Battery Notes: 25-Hour Hotspot Life, 2-Amp Current Draw from Discharged State

Peace said:
Just plug the damn thing into a wall outlet. Good grief. Apple supplies one with it. Why not use it?
Click to expand...

And why should Apple care about PC owners? Just buy a Mac and be happy instead of struggling with inferior devices.

----------
Mr. Retrofire said:
USB 3.0 old technology? *lol* Really? That must be the reason, why Apple supports USB 3.0, in the next MBPs and MBAs. Yeah, that must be the reason! Not!?

And regarding Windows:
I can do much more on Windows, than on the Mac OS X platform. Windows is a very modern, stable OS. I know it sounds absurd for you, but i plan to buy a Windows-based workstation for video editing/encoding (perhaps a Mac Pro or HP (both with Windows 7 SP1)).
Click to expand...

Yep, I can tell how "productive" Windows 7 is on my brand new desktop station at work. Even for basic Outlook tasks it struggles to keep a fluid performance.
 
Who cares about how many amps it draws? It probably draws as much as it needs. The fact that crappy USB only supplies 900 mA is not Apple's fault. The ability to charge the iPad via USB is a bonus anyway, most devices don't even support that.

By the way, instead of focusing only on transfer speed, the USB people should consider how great it would be if external hard drives and other devices could run fine without a stupid power adapter. Maybe make USB supply as much power as the host computer can?
 
i wonder how long my iPad 2 would last with that battery :D


baryon said:
By the way, instead of focusing only on transfer speed, the USB people should consider how great it would be if external hard drives and other devices could run fine without a stupid power adapter. Maybe make USB supply as much power as the host computer can?
Click to expand...

my external hdds run all without a power adapter ... ?
 
I knocked the iPad a bit for the recent battery stories, but having a 25 hour hotspot battery life is INSANE! Well done.
 
Mr. Retrofire said:
I can do much more on Windows, than on the Mac OS X platform. Windows is a very modern, stable OS. I know it sounds absurd for you, but i plan to buy a Windows-based workstation for video editing/encoding (perhaps a Mac Pro or HP (both with Windows 7 SP1)).
Click to expand...

I can do everything I need to do on my Mac, and get it done better than Windows; who cares what you need to do? Besides, if you think Windows is a modern and stable OS then you're very easily pleased - every single part of the Windows user experience stinks like a freshly-laid turd. Windows 8 will simply reinforce that.
 
My iPhone 3G charges far faster from the wall charger than via computer USB or from the car adapter. It's always been that way. Why is the fact that the iPad charges faster from the AC news? Would people be happier if it charged slower from the AC adapter?
 
I'm glad the iPad is drawing the power it is. Charging times would be even longer if it didn't.

If the rumoured new dock connector arrives with the next iPhone, I wonder if it will allow more power? When the current connector was created, it was designed for small iPods, not the massive batteries of the iPad.
 
BRLawyer said:
Yep, I can tell how "productive" Windows 7 is on my brand new desktop station at work. Even for basic Outlook tasks it struggles to keep a fluid performance.
Click to expand...

I envy you. I have to work with Windows 7 on Fujitsu Q550 tablet PCs, and it is a joke. A $1200 joke. Unusably slow, and when it told me I had to press Return to start Windows after a failed boot I pretty much gave up...
 
Konrad9 said:
I knocked the iPad a bit for the recent battery stories, but having a 25 hour hotspot battery life is INSANE! Well done.
Click to expand...

That blows away the 1-2 hours of hotspot battery life I get from my Sierra Wireless Overdrive 3G/4G piece-of-junk. The Overdrive takes 3 min+ to power on, locks up all the time requiring me to pill the battery and reinsert it, and has had to be replaced 4 times already under warrantee. Of course, I bought this at a time when the iPad didn't have wifi hotspot functionality. Novatel and Sierra will probably go out of business, or at least struggle greatly when people switch to iPads and iPhones for their personal hot spots.
 
Okay?!?!

So it draws 2 amps when dead. So what?

I want to draw more current not less, the faster it can charge the better! The USB ports on most computers have overload protection anyways so that isn't even a problem.
 
Last edited:
Does anyone think a "dumb" Thunderbolt cable(copper) would be handy to charge the iPad? I think it has 10W output.

Shouldn't be too hard to make a Thunderbolt/30pin iPod cable that is just for charging.
 
Mr. Retrofire said:
USB 3.0 old technology? *lol* Really? That must be the reason, why Apple supports USB 3.0, in the next MBPs and MBAs. Yeah, that must be the reason! Not!?
Click to expand...

__________________
MacBook Air 15" (2012 prototype), iPod touch 5G (with FLAC & OGG support), iPad 3 Wi-Fi + 4G LTE
Click to expand...


Yes, I'm sure your prototype 15" MacBook Air supports 2 amps charging over USB 3.0 just fine, but for the rest of the world who doesn't have as much of a need for attention or access to mind altering drugs as you do, the wall charger will do. :rolleyes:


The original iPad and the iPad 2 couldn't/can't really charge over USB either (they say "not charging", but grab a few percentage points of battery charge after a few hours). Unless your desktop or notebook have an electrical outlet for charging built into them, you're not going to be charging much other than a smartphone, MP3, or a compact camera over USB (1, 2, or 3) very quickly anymore. Doesn't anyone realize that they're essentially trying to charge one computer with another?
 
Last edited:
hmm

I thought apple announced with the ipad 1 and ipad 2 that it cant charge via your computer and must be done via the wall outlet. So why does the article state you can?
 
MacRumors said:
Users can, however, still charge the device using the smaller 1-amp adapter included with an iPhone or by connecting the dock connector cable directly to a computer's USB port.
Click to expand...

Nope. I just tried this yesterday on my 2008 MBP and it synched but wouldn't charge. It does charge when hooked to the wall charger.
 
Charging Tips

The quickest way to charge your iPad is with the included 10W USB Power Adapter.

iPad will also charge, although more slowly, when attached to a computer with a high-power USB port (many recent Mac computers) or with an iPhone Power Adapter.

When attached to a computer via a standard USB port (most PCs or older Mac computers) iPad will charge, but only when it's in sleep mode. Make sure your computer is on while charging iPad via USB.

If iPad is connected to a computer that’s turned off or is in sleep or standby mode, the iPad battery will continue to drain.
Click to expand...

http://www.apple.com/batteries/ipad.html
 
ouimetnick said:
2 amps is a LOT of current. It only takes milliamps to kill a person. Of course the voltage would need to be higher, but still.. 2A.
Click to expand...

You don't understand... it doesn't "only take milliamps to kill a person," it takes a specific amount of milliamps (about 100mA), because it causes the heart to go into ventricular fibrillation, which is deadly. Current above this amount is not as deadly, as the heart can stop completely instead of spasming violently.
 
You must log in or register to reply here.
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.
Top Bottom
Back