iPhone 8/Plus Battery help with iPhone 8

[Peter Franks]

I’ve had an iPhone 8 since end of August so it’s only a few months old.

While I’m not yet overly bothered that others who have had theirs since the release still show battery health at 100%, mine has lost 1% every month and is now on 96.

It just begs the question if it’s the wireless charger that’s causing this?

Only reason I mention it is because when I plug in to supplied charger it doesn’t get warm, whereas the wireless one makes the phone heat up. In Apple leather case, or out of it.

What’s the general consensus of these wireless chargers on the forums. A good thing or a sure way to degrade your battery faster than usual?

Is it purely luck of the draw. I ask this because my previous 5S battery was dreadful from new to old.

I would like this one to last a year or two before this depreciation of battery. I don’t wait till it’s very low before charging, as I read that causes problems, which I frequently did with the 5S, but that was not a choice, it was not avoidable because it didn’t last that long.

 

[BigMcGuire]

Most of my charging is 90-100% because I have a wireless charger at work and at home. Also next to my bed is one. So my phone is trickle charging most of its life. My 8+ and Xs Max never got hot wirelessly charging. Warm if under 80% but not hot. Shouldn’t affect the life of the phone. Do you have a Mac? CoconutBattery is a lot more accurate on design capacity reading.

 

[Peter Franks]

Thanks, So leaving it on the wireless pretty permanently then for you? What's your health history like on the 8?
I've got a MBP yes, Coconut works for iPhone but only through a Mac?

 

[BigMcGuire]

Thanks, So leaving it on the wireless pretty permanently then for you? What's your health history like on the 8?
I've got a MBP yes, Coconut works for iPhone but only through a Mac?

Yeah my 8+ spent most of its life on a wireless charger when charging and when not in use. I’d use the phone 2-3 hours a day off the charger.

Yep only through a Mac.

My iPhone 8+ - spent its entire life on a wireless charger when not in use:

My iPhone XS Max - charged almost entirely by wireless charging. Spends all day and night on a wireless charger.

 

[Peter Franks]

How did that correspond with the 'health' on the iPhone reading?

 

[BigMcGuire]

How did that correspond with the 'health' on the iPhone reading?

It has always read 100% for me since they implemented it. I honestly don't pay attention to it anymore, just coconutBattery.

 

[Peter Franks]

I’m not that up on it to understand what those readings mean if I’m honest. I just want to know why mine is going down on a regular monthly basis.

 

[BigMcGuire]

I’m not that up on it to understand what those readings mean if I’m honest. I just want to know why mine is going down on a regular monthly basis.

What brand is your wireless charger? When do you usually charge (what battery %)? What does coconutBattery say your capacity is?

 

[Peter Franks]

It's the Mophie £40GB from Apple. I'll put it on at night when it's maybe 40% to 60%, on occasion it'll be less than that though, but take it off before bed when it's on 99 or sometimes 100%. I've not downloaded coconut battery, as it's probably something that will mean little to me

 

[BigMcGuire]

It's the Mophie £40GB from Apple. I'll put it on at night when it's maybe 40% to 60%, on occasion it'll be less than that though, but take it off before bed when it's on 99 or sometimes 100%. I've not downloaded coconut battery, as it's probably something that will mean little to me

I’d only recommend it because it’s free and imo a bit more accurate. You’re using a good brand so nothing you’re doing is wrong.

Do you have apple care+?

 

[Peter Franks]

No, I don't have it. It's on there now and unnaturally warm. It may be a coincidence, but it never gets hot on the supplied charger, and I only notice that percentage going down when it's been charged by that charger? Do they all get hot when on wireless, or 'warm'? Very rarely did any iPhones I've had prior get warm when on the lead charger.

 

[BigMcGuire]

No, I don't have it. It's on there now and unnaturally warm. It may be a coincidence, but it never gets hot on the supplied charger, and I only notice that percentage going down when it's been charged by that charger? Do they all get hot when on wireless, or 'warm'? Very rarely did any iPhones I've had prior get warm when on the lead charger.

Warm is ok especially when charging from under 80%. Wireless definitely makes it a little more warm. If you’re worried just buy an Anker charger on Amazon and use wired. I’ve used Ankers wireless chargers for years now with my iPhones. Could be a defective wireless charger? Wouldn’t hurt to try another one. That’s probably what I’d do.

 

[forestinjersey]

My 8 gets very warm when on the wireless charger on my desk. I thought it was normal, my Samsung S9 got warm to.

 

[Peter Franks]

Warm is ok especially when charging from under 80%. Wireless definitely makes it a little more warm. If you’re worried just buy an Anker charger on Amazon and use wired. I’ve used Ankers wireless chargers for years now with my iPhones. Could be a defective wireless charger? Wouldn’t hurt to try another one. That’s probably what I’d do.

I'm not really worried about it, because as we all know, we change up every two years, and if battery is rubbish again, it's expected usually. What I am going to try now is keeping it on there when I'm not using it, as you have, rather than run it down all the time, so it was on 90% and I put it back on the wireless, which I NEVER normally do, and will see what happens. I usually wait till it's low at night. So will put on charger when I'm near it.

My 8 gets very warm when on the wireless charger on my desk. I thought it was normal, my Samsung S9 got warm to.

It probably is normal. It's just it doesn't when wired. How has your battery health been, Any noticeable deterioration since?

 

[Peter Franks]

One other thing....

When they did on occasion sometimes get warm/hot on plugged in lead chargers, after 100% if let on, they'd cool down, but on the wireless, even after it's reached 100 it still remains warm.

 

[BigMcGuire]

One other thing....

When they did on occasion sometimes get warm/hot on plugged in lead chargers, after 100% if let on, they'd cool down, but on the wireless, even after it's reached 100 it still remains warm.

That strikes me as something wrong like a runaway app or something. My phone spends most of its life 85-100% and it never gets warm. Even when using a MacBook charger. Only gets warm under 80% charge. Past that it’s cool.

 

[Peter Franks]

Makes no sense. It’s definitely the Mophie I think.