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I don't even check my battery health, it is what it is. If I start having battery issues then I'll go look at it but since I'm not having any battery issues there's no point to look at it.
I think this is a great attitude to have on this. You buy a phony to use it, it’s known that batteries are consumable, so why worry, just use the phone and enjoy it.
Frankly, I don’t even remember how to check battery health.
 
Let me preface this by saying that I keep my phones for around 12-13 months on average. I sold my XS Max with 99% battery health, 11 Pro Max with 95% battery health, 12 base model with 93% health (6 months of its life was with MagSafe). My iPhone 13, which is in its 9th month is already at 90% battery health and I charge it almost exclusively with Apple's MagSafe Duo charger.

The battery life on the 13 Pro has noticeably degraded from when it was new, much more so than I have experienced with my previous iPhones. This phone went from basically being impossible to kill within a day with my usage to needing a charge well before the day's end.
the Apple Genuius bar is open to you, maybe you could find out if its a hardware issue/battery issue and if its under warranty then there's the fix, or if not, consider if you want to buy a new battery etc. Miles cheaper than a new phone....
 
If you use your phone like a normal person you will have to replace your battery within 2-2.5 years. This is entirely routine so there is no point in thinking about usage or charging behaviour. We use expensive phones so the price of a battery replacement is a nominal fee for basic ware and tear.

I have never seen a forum full of people so worried about something that doesn’t matter one iota. Lithium-ion batteries degrade and there is nothing you can do to stop that. If you intend you keep your phone for over 2 years, replace the battery.

It’s not rocket science.
 
It's the only difference bet

I've never had a battery replaced on my phone. Is there going to be any physical indication that the phone has been opened? Do they properly reapply the water resistance glue or whatever that is? Any risks of the stainless steel band getting scratched?
I’ve never had the battery on an iPhone replaced but I’ve had the screen and back glass replaced (On two separate phones) and there was no indication that the repair was done other than the broken piece not broken anymore. This was at the Apple store.

I’m not 100% sure about the water resistance but I will say that that water resistance is only when the phone is new. After you keep it in your pocket for a while and it flexes it loses the water resistance. I’ve learned this firsthand. It’s probably okay for a little spill but don’t go swimming with your phone. Even Apple says that water resistance is when the phone is new. I don’t think they emphasize this enough.
 
I daily charge my 13PM almost exclusively with the Apple Magsafe charger since day 1 and still have 100% battery capacity shown in the settings...
 
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I hadn’t thought of that but I guess it makes sense. I’m at 86% after almost exactly two years with this 12 pro and I use wireless charging every night. I think I’m good with that since I upgrade every two years. It still has pretty solid life for me, and even the next owner should have pretty decent runway on it before replacement. If it was at 50% right now I might reconsider.
 
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I have the iPhone 12 Pro Max. I only use the regular iphone cord and charging brick that came with a previous iphone. I just checked my battery health and it's 85% 🙁.

I charge it every night at bedtime. Don't know why my battery health is so low. I plan on giving my 12 pro max to my husband to use since I'm getting the 14 Pro Max.
 
I got my 13 Pro Max on launch day last year and have charged it exclusively with Belkin magsafe at home, and ESR magsafe in my car. I only occasionally use the quickest (lightning port) method with my MacBook power brick if necessary.

My battery health one year later is still at 100%.
 
Like many others, I have had my 13PM since release day and always use the Magsafe charger. Battery still shows 100% health after almost a year.
 
My 13 pro is a year old, I use magsafe all the time, and it is at 96% battery health.
 
Let me preface this by saying that I keep my phones for around 12-13 months on average. I sold my XS Max with 99% battery health, 11 Pro Max with 95% battery health, 12 base model with 93% health (6 months of its life was with MagSafe). My iPhone 13, which is in its 9th month is already at 90% battery health and I charge it almost exclusively with Apple's MagSafe Duo charger.

The battery life on the 13 Pro has noticeably degraded from when it was new, much more so than I have experienced with my previous iPhones. This phone went from basically being impossible to kill within a day with my usage to needing a charge well before the day's end.
I primarily use MagSafe with my 13 Pro Max and have 99% battery health after 11 months of use.
 
I have a 12 Pro Max (purchased day 1) - mainly charge with magsafe overnight and also with a magsafe battery pack. Battery Health is at 82%.
 
No matter what apple says wireless charging is worse for your battery, creates more heat and wastes more energy than wired.

Oh and its painfully slow.

This is also what I believe.
I stopped using MagSafe charging when I noted how much warmer the handset felt - I always charge via cable, using Apple's 20w charger instead.
I also try to charge when the battery drops to around 10-20%, and remove it from charging when it's at 80-90%.
One year later, and my 13PM is at 100% Battery Health.
 
For the past year I’ve used the Belkin 3-in-1 MagSafe charger at night and a 20w Aukey charger during the day. The battery health on my 13 Pro Max is 96%.

I have a dead pixel on my 13 Pro Max that I need to see Apple about. If they replace my unit I’m going to switch to the 5W charger without any MagSafe and see what happens.
 
Totally non-scientific, but I was always a bit wary of wireless charging. I have a few Qi pucks, but I’ve never used them. My 11 pro is at 99% health today. My XR is 94%. My 13pm (admittedly young, I bought it 4 ish months ago), is at 100%.

I rarely fast charge and never wireless.
 
Wireless charging destroyed my X within a year or two. Literally the battery expanded and broke apart the case. Hence why I upgraded to the 13 Pro. I think I’m done with wireless chargers.
 
I stopped using MagSafe charging when I noted how much warmer the handset felt - I always charge via cable, using Apple's 20w charger instead.
I think a lot of people confuse the heat from wireless charging with the battery getting hot from charging. Thing is, inductive energy transfer leaks a lot of energy mostly as heat. Same with an electric motor or a transformer, some of which have to be actively cooled due to the excessive heat generated. Sure, some of this heat is transferred to the battery and other components of the phone but that does not mean they are doing damage. Keeping your phone on the dash of your car or even in your pocket on a hot day gets it plenty hot as well. How often does the screen dim due to heat when out in the sunshine? I have never seen that happen from MagSafe charging.
 
My wife and I get the same phones every year. Despite my wife being a much heavier user of her phone than I am - we usually had the same health. The 1 year she used MagSafe and I didn't, her capacity dropped to 10% lower than mine. For the 13 Pro Max we didn't use MagSafe and again we're identical on health.

Coulda just been a bad battery but it could have been the heat from MagSafe too.
 
I’ve had my 12 PM about 17 months my battery capacity is 89%.

I MagSafe charge in my truck. In the bedroom I use a regular wireless charging disk. In the living room say watching tv I use a cable.
 
Wireless charging also causes even more heat if you got bad alignment or something else is causing resistance.

With magsafe, bad alignment is impossible, but different phone cases can have a different effect on the efficiency of the charging, depending how well the inductive charging can pass through the case. (Apples cases are likely optimized for this though) And bad efficiency leads to more heat.
 
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