Switching off randomly below 20% battery

craig_t · 1 Dec 2015 at 00:21

My iPhone 5 and 6s both do this and I don't get why. Below 20% it sometimes drops down fast maybe 20%,14%,5% off in the space of a few minutes. Or it just turns off at 17% for example. I always let it drain below 20% before charging and charge it full before taking off charge... Any ideas why this is? It does get to 1% sometimes

craig_t · 1 Dec 2015 at 00:30

Surely there is a fix if it happened on my 5 they have released another 3 phones between the 5 and my 6s?

rdb2012 · 1 Dec 2015 at 11:10

http://forums.overclockers.co.uk/showthread.php?t=18703849

craig_t · 1 Dec 2015 at 11:19

I did see that post but it is suggesting at goes up and down at things like 60%. But, then if plugged back in it goes up to 60% again etc. Mine doesn't do that, I have also obviously got a brand new battery in the 6s and tried a new one in my 5?

rdb2012 · 1 Dec 2015 at 12:06

It could be a software issue!

The guy at genius bar that I saw said, he has seen lots of people with such a problem. He was suggesting to restore as "new", but for me that didn't help. So you could possibly try that?

craig_t · 1 Dec 2015 at 18:38

I gave my iphone 5 to a friend, which got restore as new and she began with a new apple ID etc. Still has the same issue. Genius bar tried to tell me once I needed to reset my phone as my 'settings/data' had a bug in it

rdb2012 · 1 Dec 2015 at 21:51

Also, certain i5 had battery problems and they were eligible for free repair/swap I believe.

craig_t · 1 Dec 2015 at 23:00

Mine wasn't, I checked on their site when it came out

-Mike- · 4 Dec 2015 at 17:26

I had the same problem with a 4s! New battery sorted that out.

craig_t · 6 Dec 2015 at 23:41

I'll see how the 5 goes with the new one in and if my 6s keeps it up will contact Apple