Released on September 19, 2014, this 4.7" screen iPhone is the smaller version of the iPhone 6 Plus. Identifiable by the model numbers A1549, A1586, and A1589.

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Too much battery discharge?

Had a few devices that were dead on arrival

I do usual checks including using an ammeter to see if device drawing any current to charge.

No current at all. Tried charging battery externally then tested again and everything working perfect including charging.

Just wondering what causes this?

Does the battery discharge too much ?

What is strange is before you charge battery externally there is no draw on current using usual charging which makes you think it might be connector or u2 ic.

Have any of you experienced this also ?

Might this mean battery will need replaced even though now working fine for several weeks?

Any comments greatly appreciated


Answered! View the answer I have this problem too

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1 Answer

Chosen Solution

Probably the battery voltage was extremely low to the point where they needed to be externally charged to charge up again.

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The phone *should* have prevented the battery from reaching absolute zero charge. It could mean a bad battery, could mean a power IC problem, but if it only did this once...I don't know that I would mess with it.

Unless this is a customer unit. Then I would swap the battery, charge it up to 10% or so, then play Angry Birds til it was dead dead. Repeat that a couple of times and then call it fixed.


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