[jcdumdumaya]

So my phone turned off at 4% and when I plugged it in it turned on immediately. Is that normal?

[whetrick1]

Yes your phone will turn off when the battery gets low.

[Ledsteplin]

It's fairly normal. You might calibrate the % by letting it run down to 1% or as low as possible, then charge it up to 100%. Let it continue to charge for at least another 30 minutes. If it continues to shut off higher than 1%, then the battery may be beginning to show early signs of wear. This is normal. How old is your 6?

[robertk328]

Recalibration is the answer most likely. Just don't do it often, these batteries don't like deep cycles.

[kataran]

My old 5s tends to shut off at different percentages below 20% even after calibration but it's because of an aging battery. But if I choose the low power mode option at the 20% warning it will go down to one percent like it's designed to

[KilobaiD]

You can use, iBackUpBot or something like that, to see how cycle have your battery, normally is to have about 300-400.

[jcdumdumaya]

It's fairly normal. You might calibrate the % by letting it run down to 1% or as low as possible, then charge it up to 100%. Let it continue to charge for at least another 30 minutes. If it continues to shut off higher than 1%, then the battery may be beginning to show early signs of wear. This is normal. How old is your 6?

My phone is 1 year old