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martinocando

macrumors 6502
Original poster
Jun 12, 2013
280
52
I just reported a weird thing that has happened twice already. On my iPhone6, when battery level reaches around 25%, suddenly you look at the screen, and it goes down to 2%, and if you continue using it for a while, goes to 1%. As you plug the phone in, the level jumps back to 24%.

Is this a known bug?
 
Probably a battery that is on its way out. Erratic battery behavior means it has or is beginning to reach the end of its life. Considering its an iPhone 6 and is probably almost 2 years old, its most likely the battery itself and not software related.
 
Probably a battery that is on its way out. Erratic battery behavior means it has or is beginning to reach the end of its life. Considering its an iPhone 6 and is probably almost 2 years old, its most likely the battery itself and not software related.
Yup, just replaced the battery of my iPhone 6 with similar problem. Now, getting near 10 hours of screen time using iOS 9.3.5.
 
Yup, just replaced the battery of my iPhone 6 with similar problem. Now, getting near 10 hours of screen time using iOS 9.3.5.
iPhone 6? 10 hours of usage or standby time on one charge?
 
Interesting. Well, I should start talking with our IT department, and see if I can get a replacement. Maybe a 6s, hopefully ;)
 
I think this is a bug in ios10. Mine does the same, but if you continue using the phone when it reaches 1%, you actually have 20% or more battery left. I used the phone for over 2 hours when it reached 1% last night.
 
I have experienced this as well but was told this occurs with Beta software at times.
I think this is a bug in ios10. Mine does the same, but if you continue using the phone when it reaches 1%, you actually have 20% or more battery left. I used the phone for over 2 hours when it reached 1% last night.

It's not necessarily a beta or iOS 10 bug. The same exact thing has happened to some in all versions of iOS 9 as well.

So it is either an issue tied to Low Power Mode (seeing as the issue started to pop up with iOS 9 and the introduction of that feature) or a hardware issue
 
I think this is a bug in ios10. Mine does the same, but if you continue using the phone when it reaches 1%, you actually have 20% or more battery left. I used the phone for over 2 hours when it reached 1% last night.
Exactly my experience.

But for the most part, is having good enough battery life, so it might not the battery about to die just yet.
 
Maybe try 'calibrating' the battery? Try emptying it then recharging it to full. If that doesn't fix it then it's probably a hardware bug (unless you really want to reset your iOS installation to diagnose it). It has nothing to do with Low Power Mode, that just doesn't make any sense.
 
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