Ok so here's a weird one.
Has anyone else's iPhone been turning off at random percentages on with this beta and also the previous one?
My percentage seems off and the drain isn't linear.
Here's where it gets weirder. My 6+ has turned off at 8,9,17 and now 60 odd percent.
Wait a few minutes and you'll be able to power it back on and use it for ages again.
I'm wondering whether it is the cold. At least three of those times, I have been using my phone for fairly long periods in cold weather. Like when I'm waiting for a train for example.
A few weeks ago, I was wild camping and left my phone in the tent pocket. It was 0C overnight and I woke up and it was dead, despite being on 20% or so. Then it turned back on.
I know the cold can adversely affect a battery but I've never experienced it happening like this, so frequently.
Can anyone advise?