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Discuss Question: how to disable charging while plug in USB at the General - Hackint0sh.org; is there any way to disable charging while I connect iPhone to computer? I would ...
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    Default Question: how to disable charging while plug in USB

    is there any way to disable charging while I connect iPhone to computer?
    I would like to charge it when I plug into AC, but not while I am connecting to copmuter...



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    Default

    Quote Originally Posted by aaronliu View Post
    is there any way to disable charging while I connect iPhone to computer?
    I would like to charge it when I plug into AC, but not while I am connecting to copmuter...
    I doubt it , and really dont understand why you would want this.

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    preserving battery life..

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    Quote Originally Posted by adyh View Post
    I doubt it , and really dont understand why you would want this.
    isn't it better to let the battery runs low then charge it?

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    Quote Originally Posted by aaronliu View Post
    isn't it better to let the battery runs low then charge it?
    No, thats actually worse.


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    Default Lack of knowledge people have about a lithium ion battery compared to the older ni-ca

    Quoted from here.

    First Lithium ion batteries DO NOT develop a memory so people thinking you should drain your battery till it is almost dead and then charge it because of the "memory" of the battery are wrong.

    Second The charge cycle for a iPhone battery is from dead to fully charged. So charging your battery often means many less full cycles. A lithium-ion battery provides 300-500 discharge/charge cycles. The battery prefers a partial rather than a full discharge. Frequent full discharges should be avoided when possible. Instead, charge the battery more often. There is no concern of memory when applying unscheduled charges.

    A lithium-ion battery in use typically lasts between 2-3 years. The worst condition is keeping a fully charged battery at elevated temperatures, which is more a problem with running laptop batteries. If used on main power, the battery inside a laptop will only last for 12-18 months.

    So again:

    Avoid frequent full discharges because this puts additional strain on the battery. Several partial discharges with frequent recharges are better for lithium-ion than one deep one. Recharging a partially charged lithium-ion does not cause harm because there is no memory. (In this respect, lithium-ion differs from nickel-based batteries.)

    Keep the lithium-ion battery cool. Avoid a hot car. For prolonged storage, keep the battery at a 40% charge level.

    I Hope this sheds some light on the subject. If you do not believe me please feel free to research it yourself.

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    Sorry, no good english, but i try to explain:

    a batterie has only a certain amount of loading cycles.
    One cycle is run low the batterie and then charge it completly.

    So when you only use 10% of the batterie capacity and charge it, this is only 10% of a loading cycle.

    So you can charge it 100 times to 100% or 1000 times to 10%, both the same.

    Hope you understand it.

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    Quote Originally Posted by Locked View Post
    Quoted from here.
    Thanks for the useful information!

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    Is it bad for the battery to not complete a charge once started.

    For instance: Battery is at 50%, you plug it in for a short period to get it to say 70%. Is it much better for ther battery to try and charge it to full whenever you plug it in?

    Maybe the better question is: Is it harmfuly to only partially charge the battery?

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    No it isn't. The only thing you must avoid is frequent full discharge cycles.


 

 
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