Hmmmm so I’ve checked my 6S.
Battery is at 93.29% health at 100% charge.
The CPU is fixed at 1200 MHZ at full charge and plugged in to the mains and won’t budge from this, I’ve just taken it off charge and checked it and it’s at 1512 MHZ.
And when the battery was depleting, so when it was around 70% charge the CPU was at 933 MHZ and then when it dropped to around 50% the CPU speed was dropped to 600 MHZ.
So if CPU Dasher is accurate then the CPU clock speed is constantly being managed depending on battery status. I ran Grid Autosport on it in the background and other apps and the CPU speed didn’t change at all, that was when it was fixed to 633 MHZ.. so that would impact the games performance.
I ran the same app on my iPad Pro and I think it goes to 2.5 GHZ but it just sat there at 2.3 GHZ and didn’t budge...
So yeah, despite what I would consider to be a pretty healthy battery, Apple has employed some seriously aggressive throttling here.
My 6S also does not need a battery replacement under their programme as I checked the seriel number before and I only got it just over a year ago.
Oh so now it’s at 1843 MHZ and the battery at 98%....
Somy conclusion is, my 6S which I got in November 2016 brand new, so literally just over a year old, with a healthy battery, is having its performance halved when the battery is around half. Perhaps I’ll let it drop to 20% today and see what it gets throttled to.
And it my phone was instead turning itself off at 20 to 30% I would have taken it back to Apple and complained, if they said it was the battery I would be in two minds of demanding a free one now as we have 12 month minimum warranties in the U.K. but I would also be thinking I’ve never owned an Apple device that turns itself off at these charge levels, ever and I’ve had 9 iOS devices, that would be more worrying.
I think Apple have messed up, didn’t want to do a product recall and have been caught red handed.
I hope Apple is take to the cleaners for this one and they probably will be, and it’s sad so so so many apologists have come out in force to protect a giant corporation who’s only interest are profits and share price, when it in my view has tried to cover up its mistakes and design flaws. I do wonder just how many are protecting their own AAPL shares...