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New ipad battery depletion while plugged in

This is a discussion on New ipad battery depletion while plugged in within the iPad 3 Forum forums, part of the Apple iPad Discussions category; There were indeed a few cheap iphone and iPad cables which would'nt actually charge at all due to one wire being missing (or not connected) ...

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Thread: New ipad battery depletion while plugged in

  1. #11
    Lunar
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    There were indeed a few cheap iphone and iPad cables which would'nt actually charge at all due to one wire being missing (or not connected) apparently, though I thought most of these problems were usually with cheap cables bought from dubious Ebay sellers, I had one myself, dirt cheap, which just wouldn't charge my iPad1, it never even showed the charging icon on top right of the screen.

    To the original poster, does your iPad behave the same regardless which 10watt iPad charger your using..IOW I assume you have eliminated a charger fault.
    My official iPad charger does charge my iPad3 even when I'm using it, such as when streaming live TV which I use mine a lot for... IOW it's often used as a TV alongside my computer..lol, albeit it will be much slower than if the iPad was powered off of course.

    At home.. mine spends a lot of time in a Logitech stand with powered speakers built-in, and I find that seems to charge slightly quicker than the proper 10watt charger, I'm hoping that's not a bad thing. Though in fairness I've used this same stand on my iPad1 for a very long time without any issues.

    I have never seen the battery level go down when charging even when the iPad was being used.... so you may have a issue with your iPad (hope not) I would certainly try another charger first if that's possible, if only to eliminate the charger.
    Last edited by Lunar; 04-03-2012 at 01:20 PM.

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  3. #12
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    Without taking any closer look, I've got a feeling that the OP was plugging in the USB port of the PC and assume it would charge just like the normal 10W power supply.
    Lunar likes this.

  4. #13
    Lunar
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    Quote Originally Posted by grouchomarx View Post
    Without taking any closer look, I've got a feeling that the OP was plugging in the USB port of the PC and assume it would charge just like the normal 10W power supply.
    That may be the case, as the OP didn't specifically say he was using the actual Apple iPad 10watt charger, it was his first post on the forum, and has not posted since. ;-)

    IME, most PC's will actually deliver a small charge, even though it shows up on the top right as not charging, but it is quite small, and certainly if the iPad has not been powered off, and especially if it's in use it will take more out of the battery than what the PC can put in. This AYS is widely known.

    I did notice when I built my current PC rig, which uses a Gigabyte Z68XP-UD3P motherboard, Gigabyte claim you can charge your iPad from the PC as they claim their USB ports have a higher wattage rating.
    However, in use, I've found that sure enough the output from Gigabyte's later boards do indeed remove the 'Not Charging' message from the top right of the iPads screen and show it as charging, but TBH, although it does charge the iPad even when being used it's pretty damn slow... extremely so..lol
    It only just about works, as I've noticed that if I use a 2m connecting cable instead of the standard supplied cable it has a tendency to occasionally show the 'NO Charging' message, but if i revert back to the standard shorter cable it starts to work again. IOW.. I think it just barely works...just!..lol

    IMO, your much better off using the proper 10watt charger, unless you use a proper iPad stand/dock which is designed to deliver sufficient wattage, my Logitech iPad stand for example seems to charge a little quicker than Apples 10watt charger, though I've not done any real world tests.
    Last edited by Lunar; 04-04-2012 at 08:26 AM.

  5. #14
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    Nice to know some M/B have this near-useless feature... LOL

    With that said, I noticed that in my boost magic app charging sequence showed my iPad being charged at 3 different stages. First it was the standard fast+trickle charge to 100% as the iPad indicator also shows. But then it was immediately followed by two top-off charge sessions, each lasting 10 minutes.

    It does appear a bit strange to me...
    Last edited by grouchomarx; 04-04-2012 at 12:21 PM.

  6. #15
    Lunar
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    Quote Originally Posted by grouchomarx View Post
    Nice to know some M/B have this near-useless feature... LOL

    With that said, I noticed that in my boost magic app charging sequence showed my iPad being charged at 3 different stages. First it was the standard fast+trickle charge to 100% as the iPad indicator also shows. But then it was immediately followed by two top-off charge sessions, each lasting 10 minutes.

    It does appear a bit strange to me...
    I've not seem that app, but for curiousity will give it a try. I know from my own experiences when I used to fly radio controlled planes years ago, that the companies who manufactured the Lithium ion cell battery packs always stated that unlike other types of cells these need special chargers, and that unlike previous batteries harm could be done to the cells if they were trickle charged from their flat state which was about 1.08v per cell.. IOW they used to charge at a fairly high rate in stages, with as you say a final topup when they reached peak voltage at about 1.46v per cell. I do know that it was most harmful to the packs if allowed to run completely flat.
    Which is the reason devices like iPads and anything else that uses Lithium Ion cells cut off power well before that harmful low level is ever reached.

    Lithium cells used to have the potential to be quite dangerous, but safety features have improved so much these days it's almost a non issue. Nonetheless, manufacturers are still wary and cautious, and have to error on side of safety, which is why many thousands of products have had to be recalled in the past, due to a lithium Ion powered device exploding, due to a bad batch of batteries. Fortunately and thankfully this is rare event now.

  7. #16
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    Quote Originally Posted by Lunar View Post
    I've not seem that app, but for curiousity will give it a try. ....
    Lithium cells used to have the potential to be quite dangerous, but safety features have improved so much these days it's almost a non issue. Nonetheless, manufacturers are still wary and cautious, and have to error on side of safety, which is why many thousands of products have had to be recalled in the past, due to a lithium Ion powered device exploding, due to a bad batch of batteries. Fortunately and thankfully this is rare event now.

    In case you haven't read it yet...
    Apple explains iPad battery indicator - The Washington Post
    Lunar likes this.

  8. #17
    Lunar
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    Quote Originally Posted by grouchomarx View Post
    Thanks for the link, I had'nt read it actually, also since found couple of other stories on the net about it not being fully charged, when it displays 100%, though I suspect these battery percentage figures will likely not be 100% accurate, and perhaps should be treated similar to one's car fuel gauge.
    In any case I'm sure the next iOS update will contain a few fixes... especially now customers have had time to play with them.
    Lyndon23 likes this.

  9. #18
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    I have the new iPad 3rd Gen (64 GB Wifi + 3G) and Iam experiencing the same problem. I think apple has given an underpowered 10W charger for the new iPad. Iam very unhappy with the charging part. It takes at least 8-9 hrs for full charge when it's not being used. If u use while charging, the battery slowly depletes

  10. #19
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    Quote Originally Posted by santoshsingh77 View Post
    I have the new iPad 3rd Gen (64 GB Wifi + 3G) and Iam experiencing the same problem. I think apple has given an underpowered 10W charger for the new iPad. Iam very unhappy with the charging part. It takes at least 8-9 hrs for full charge when it's not being used. If u use while charging, the battery slowly depletes
    Whether it depletes or not while in use really depends on what you're doing and the brightness level you keep the screen at. Run the screen at 100% brightness, then you must expect that the battery will deplete. I put my screen on 100% brightness and didn't really do anything but let is be on...and the temp on the back got to 111 deg F in 36mins. So the screen, with all those 3 million pixels, can really draw a lot of power. And if you are playing a graphics intensive game too, with the screen on max brightness, the condition is even worse. But I also use my iPad for navigation using Navigon and with the screen at 40-50% with autobrightness on and music playing in the background, the new iPad can still gain charge.

    Because I use my iPad everyday, at work and at home and in the car, I have a 10W charger in all of these locations. You can get them for $8 on Amazon, replete with a charging cable. I simply keep it plugged in whenever I am at my desk.
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  11. #20
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    Quote Originally Posted by AQ_OC View Post
    Whether it depletes or not while in use really depends on what you're doing and the brightness level you keep the screen at. Run the screen at 100% brightness, then you must expect that the battery will deplete. I put my screen on 100% brightness and didn't really do anything but let is be on...and the temp on the back got to 111 deg F in 36mins. So the screen, with all those 3 million pixels, can really draw a lot of power. And if you are playing a graphics intensive game too, with the screen on max brightness, the condition is even worse. But I also use my iPad for navigation using Navigon and with the screen at 40-50% with autobrightness on and music playing in the background, the new iPad can still gain charge.

    Because I use my iPad everyday, at work and at home and in the car, I have a 10W charger in all of these locations. You can get them for $8 on Amazon, replete with a charging cable. I simply keep it plugged in whenever I am at my desk.

    Unlike the AMOLED which doesn't use back light, iPad's current retina LCD screen replies on LED to provide the light. As you increase the brightness, the LED consumes more power. I really cannot understand why people b*itch about battery depletion/usage while in the same time give their LED the full blast...


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