and how do I know if she is good at the time of purchase the opportunity?
and this is why Apple these devices with no replaceable batteries has developed, once in the waste "it at home to us with another new format for a price of $99

Hello replace must return"

They have reason, they confuse fix the battery and the duration of the aid
**************************************…

LONG LIFE OF BATTERY

Typically, their iPhone use, intelligent, with a regular battery calibration
The battery should last 3 and a half years (more or less with small variations).

And it is an iPhone 4, a 3 g or even a 3 g. Not the same criteria the original iPhone.


Duration of free of charge (charge cycle)

Here talk we charge about the last time, when the device is 100% loaded. Is a charge cycle, the time you set, the time the iPhone is a 100% and 15% (and for this reason, you need to load).

The battery of the iPhone is designed 400 cycles (with a good good father/mother family), keeping their performance have. (100 Cycles = approx. 1 year)

Why is that it recognizes, that after these 400 cycles that autonomy decreases, since clearly the battery starts wear brand is possible.

Where dire saw also tell people of this load twisted has through their iPhone, you damage your battery, because this new parts take the number of cycles and cycles faster than then are

Ready, I know not if I answered your question, but I'll try more fully as possible be.

I know the details, because I am a technical assistant in AppleCare for IOS devices

BYEE
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