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  1. #1
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    How to stop charging battery when it is connected through PC

    Hi,

    I want to stop charging when i connected to PC.
    I want to charge only when it is connected to the wall.
    Is it possible?

    I have a Iphone 4 + iTune 10.0

  2. #2
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    i am not sure if this is possible but a very good question i must say, and i am also interested in knowing the answer.
    ANyone who has knowledge please reply.

  3. #3
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    No, it isn't possible.
    Unlimited Fido Data Plan: Netgear Aircard LTE Mobile Hotspot

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  4. #4
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    May I ask why you are interested in this? The battery is not negatively impacted (or at worst negligibly impacted) by "overcharging".

  5. #5
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    Quote Originally Posted by RayRaymond View Post
    Hi,

    I want to stop charging when i connected to PC.
    I want to charge only when it is connected to the wall.
    Is it possible?

    I have a Iphone 4 + iTune 10.0
    What's the point? Charging is charging. The phone doesn't know the difference where the power comes from, so why do you care? Once it's full it'll stop charging regardless.

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    Quote Originally Posted by gpatrick900
    I am a little confused. My Verizon phone was able to roam on GSM because they used TDMA. Tell it was shutdown. The phone recognizes it as Analog. If PCS has TDMA, It could be technically be used on GSM.
    Quote Originally Posted by Tabla View Post
    Y'know, I'm used to hysterical 14-year-old ******** on the internet, but this is exceptional. Never before in human history have so many nerds hyperventilated so publicly over so little.

  6. #6
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    Quote Originally Posted by XFF View Post
    What's the point? Charging is charging. The phone doesn't know the difference where the power comes from, so why do you care? Once it's full it'll stop charging regardless.
    What is meant by charging, when does the phone start to charge, and aren't battery's effected by charging cycles. If a phone starts charging at 99% (whatever) is it still counted as one cycle?
    Today a group of leading venture capitalists published an open letter to the FCC calling on them to prevent what they say would be the end of net neutrality and a crippling blow to young startups.
    No Google, say it ain't (or wouldn't of been ) so! ATT and Verizon would have killed their own cash cow.

  7. #7
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    Quote Originally Posted by CA View Post
    What is meant by charging, when does the phone start to charge, and aren't battery's effected by charging cycles. If a phone starts charging at 99% (whatever) is it still counted as one cycle?
    No. Going from 0% to 100% is one charging cycle. Anything in between is a partial cycle, like going from 40% to 65% is 1/4 charging cycle. Likewise, going from 99% to 100% is 1/100 charging cycle. Absolutely no harm in doing that.

  8. #8
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    Research what pins/wires of USB contain power, and clip those two.

  9. #9
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    Quote Originally Posted by sdschramm View Post
    Research what pins/wires of USB contain power, and clip those two.
    I take it you're not really familiar with USB, are you? Suffice it to say your phone won't sync (or do anything over USB) if you do that.

  10. #10
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    USB 1.1 may not have enough power to charge an iPhone, likewise with unpowered hubs. On the other hand, these may cause the phone to discharge.
    Earl F. Parrish

  11. #11
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    I could see this being of use if you were connected to a laptop which was running on battery power while trying to tether or sync. Otherwise, I wouldn't see the purpose.

    Use an older USB hub. It will, more than likely, not provide the necessary power to charge the iPhone.
    Quote Originally Posted by cc3d (*edited by craze189)
    the most important question:

    Who is the 'short-haircut' chick from the Facetime commercial and where do we find out more about her?
    Quote Originally Posted by MI_canuck View Post
    On the same token, you don't NEED an iphone 4... It's a luxury. Not an essential part of human life. Doesn't work for someone? Plenty of other phones that will.

    ahhhh... Life was so much simpler back in the iPhone 2G days, when no one got a subsidized price, and the entitled minions of society were left out.

  12. #12
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    Quote Originally Posted by XFF View Post
    No. Going from 0% to 100% is one charging cycle. Anything in between is a partial cycle, like going from 40% to 65% is 1/4 charging cycle. Likewise, going from 99% to 100% is 1/100 charging cycle. Absolutely no harm in doing that.
    ^^This

    OP is thinking of old battery technology. LiIon do not have the quirks of NiMh.

    Keep it topped up!

    Robert

  13. #13
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    I think too many are looking at it all wrong.
    It sounds like he wants to sync without charging.

    There is a way to wireless sync your iphone with itunes. SSH is also usually wireless so you can do this all without a wire meaning no charge. Just do that.

  14. #14
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    As far as i know, No matter Li ion, li polymah, especially NiMH has memory.
    NiMH is a rather old technology and it is quite obvious when time by time.
    All consumers battery like li ion and li poly do have memory but not that significant.
    During the first few charges, it is better to charge when it is lower 10% and charge to full.

    iphone 4 will stop the charging once it is done and this is very simple, but i usually need to transfer emails to the phone.
    It will not damage the battery if you charge the battery at 20% and or 90% but somehow it will shorten the life or capacity of the battery.

  15. #15
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    It will not make a difference to the battery. This has been discussed many times before. Current generation batteries don't have this issue you speak of. At least not enough for it to make a difference.

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