iPhone 6 Poor battery performance

[Nsandmeyer]

Ever since I updated my software to 9.3.1 I have been experiencing erratic battery performance. I'm not sure if it's just a coincidence or if it is caused by the software. My phone randomly shuts down with anywhere from 30-80% battery life and will not turn back on till the phone is plugged in. Is this something I can get fixed at a Verizon store or do I need to contact Apple?

[vzw_customer_support]

Nsandmeyer, I’m here to help make sure your phone and battery are performing the way they should be. I can definitely assist in troubleshooting this issue. How long have you been having these battery problems? Is there something specific you’re doing on your phone or an application running when the phone shuts down? How long does your battery typically last compared to how it used to be?

MarkP_VZW
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[Nsandmeyer]

It seems to have started a short time after my last software update to 9.3.1, approximately a week and a half ago. There is no particular application that is running when the phone shuts down, it has done it while answering a phone call, sending text messages, using apps, and even just sitting there. The battery life will typically show any where from 30-80% and the phone will just shut down. When you try to turn it back on, it gives you the image of a dead battery and the charge cord indicating that the phone needs to be plugged in. The phone will not turn back on until after it is plugged in. Once the phone restarts, it usually shows approximately the same battery life it had before shutting down.

[Nsandmeyer]

The battery will only last approximately 3-4 hours, regardless of use before shutting down while showing plenty of battery left, whereas it would go almost all day long with light use before it started acting up

[ahess]

I am having the same issue, did you ever recieve an answer on this?

[Nsandmeyer]

Never heard back from Verizon, so I took it by the local Apple Store. They ran diagnostics on it and determined that the battery was only at a 65% useable state. Therefore the phone didn't know what the actual charge of the battery was. just had the battery replaced so, we'll see how it goes.