I am thinking about getting a replacement battery, i can get a genuine replacement that will be 100% capacity but how much different will this make from 90%? is it simply a 10% difference or is it more complicated than that?
90% is decent and you shouldn’t start noticing significant impacts to battery performance until you are closer to 85%. It is an estimate and the algorithm is likely designed to give a more optimistic view of your battery health than not. AppleCare+ covers battery replacements but Apple will not honor this policy until your battery health reaches 79% or lower. You can pay out of pocket if you need to but I wouldn’t recommend doing so at 90%.Although battery health is an estimate, 90% is decent.
Even more of an unpopular opinion: battery health is irrelevant, the only thing that matters is the iOS version:Unpopular opinion: I think 90% is the starting point of a trash battery. Not quite fully garbage but it's getting there!
Once it hits 90% and dips lower, it becomes a can of worms because you could have a battery with 88% but acts like it has 65% capacity.
I got a warning to change my battery due to significant degradation in the settings, with 86% once.
So in a way, everyone that has said to just ignore the battery health % was right at the end of the day. Either you use it or you lose it.
Even more of an unpopular opinion: battery health is irrelevant, the only thing that matters is the iOS version:
I have an iPhone 6s on iOS 10 with 63% health (63%, not a typo), and battery life is like-new. An iPhone 6s on iOS 15 with a new battery dreams of the battery life my 63% health iPhone 6s gets.
My 9.7-inch iPad Pro has seen no battery life degradation in the four years since Apple forced it into iOS 9, regardless of battery health. It has been on iOS 12 throughout these past four years.
People overestimate age a lot, and severely underestimate the energy impact iOS has on a device after its updated a few times.Yep, my 2010 iPod touch on iOS 6 and with the original battery still plays music for hours on end.
My Nokia with original battery from 2005 still stands by for a week.
Honestly, I think we are demanding too much from these modern devices.
Estimating battery health is all guesswork.If people are saying that 90% is not a true reflection of the batteries health and that the battery is trash then maybe the issue is not with changing the battery but getting Apple to correctly identify the health of a battery.
People overestimate age a lot, and severely underestimate the energy impact iOS has on a device after its updated a few times.
32-bit devices (even if updated!) are a lot better with older batteries than newer, updated devices. iOS’ energy consumption has skyrocketed on updated devices ever since it went 64-bit. iPad 2 users, iPhone 5c users, they all report usable devices even 10 years in. Meanwhile, you have 1st-gen iPad Pros, 1st-gen iPhone SEs, and a lot more being obliterated just a few years in. iOS updates demand too much from these devices, and sadly I don’t see this reality changing. Couple to that what you said: people are doing more and heavier tasks, and the device can’t cope.
If battery health were so relevant, no iPad 2, 3, 4 would work today. My 9-year-old iPhone 5c would be gone. You see people replacing batteries after two years! Two! It’s absurd really. The fact that older devices work, and the fact that non-updated devices work perfectly many years in, shows that there is only one culprit: iOS.
What apps are you using? Drainage seems to be quite extreme.Now launch day 14p is down to 90. My battery has been awful, I’m charging it multiple times a day because it drains so fast. This is the worst battery I have ever had.
What apps are you using? Drainage seems to be quite extreme.
Did you ever try to optimize your settings to save battery? I’d be happy to provide some suggestions if that would help you.
I’ve used my iPhone Xʀ on iOS 12 pretty heavily and battery life is still flawless today. Even with moderate tasks it should be able to provide good battery life years on end, and it doesn’t currently.Maybe it goes without saying, but even today I’m still doing the same things with my Nokia and iPod that I did when I first got them; making phone calls and playing music. That’s it.