My last 3 iPhones: 11 pro max, 12 pro max, and 13 pro max lost capacity fast Before hitting a year. I never remember this being an issue before.
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iPhone 13 Pro Max Are the batteries not as good or is it wireless charging?
- Thread starter C. Robert
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My 6 year old iPhone 6 Plus with original battery and 1900+ load cycles on it has a battery health rating of over 92% still.
1. Almost never charged it to 100%
2. Used it every day, all day for six years
3. Rarely discharged it below 40%.
4. Almost exclusively used the 5 watt charger until the last year. Then upgraded it to the 12 watt iPad charger.
1. Almost never charged it to 100%
2. Used it every day, all day for six years
3. Rarely discharged it below 40%.
4. Almost exclusively used the 5 watt charger until the last year. Then upgraded it to the 12 watt iPad charger.
Loosing something “fast” is a relative term. Fast compared to what? If you cannot remember measurements on older devices maybe there hasn’t been that much change at all? I personally don’t feel that my charging habits have changed all that much in the last decade.
Wireless charging is probably the worst thing you can do to your device, but if you are not keeping it for 2+ years I would not worry about it. Wireless charging just wastes so much energy and a lot of heat on the device.
I 20W charge my 13 PM every day since launch and it is at 102.8% on coconut battery (same as launch).
But yes iPhone and Ipad batteries have gotten significantly weaker (definitely intentional).
I 20W charge my 13 PM every day since launch and it is at 102.8% on coconut battery (same as launch).
But yes iPhone and Ipad batteries have gotten significantly weaker (definitely intentional).
I put it down to the Battery Health meter algorithm getting worse, maybe because these phones are now coming with more capacity than stipulated? My 11 Pro Max came with 4149mAh according to the log on the phone. (11 Pro Max is typical rated at 3969mAh)
It reached 87% health many months ago and has sat there for about 4-5 months now lol. Yet for a while every month or two it dropped. I think that health meter is incredibly inaccurate in all honesty. I am now expecting a huge correction to come maybe tomorrow or maybe in a few months time who knows ?
What I do know is that I still get a full day of heavy usage out of this phone, so I have chosen not to trust the Battery Health reading, I just pop in there after an iOS update to see if the big correction has happened and each time I am like Wtf ?
My neighbors iPhone 8 Plus which she’s had from day 1 still has 97% health. Amazing. I have a feeling battery suppliers are knocking out lower grade cells these days. I’d like to see the cycle count.
Good point, no she doesn’t. Not as often as us lot. However it’s her only phone ( no landline ) and on the phone often.
I have to see if I can get hold of the charge cycle count. So that I can get a bigger picture.
Do you have any data about wireless charging being dangerous to battery life ?
Less efficient for sure, but why dangerous ?
When did I say dangerous? Just meant less efficient like you said, wastes alot of energy and causes extra heat that is bad for battery health.
OP: maybe you got bad phones those years. My 11 PM is still at 100% from launch. Just amazing battery life - I use a variety of means to charge including wireless.
Wow. ?
Do you use the phone often? What is your average screen-on-time daily? And do you leave the phone charging overnight, and to 100%?
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I only charge it when it gets very low. As soon as it hits 100 % I take it off charge. Honestly I don’t keep track of screen time.
I’ve had my iPhone 12 pro max for under a year now and my battery health is already at 94%. I noticed that I’ve been doing wireless charging pretty much exclusively and it’s been absolutely killing my battery health. Has anyone else experienced this?
I wonder if the "battery health-meter" is just pre-set to deduct a certain amount based on the number of charges, and possibly how long the phone has been left on the charger after it was full, etc. It may be no more scientific than that ; )
I do not believe wireless charging damages batteries - as long as you use the correct charger!
Wireless charging requires energy to be transmitted across an air gap, a process that necessarily generates some heat. The fact that the surfaces of the phone and charging pad must be in very close proximity means that the heat exposure will damage the phone’s lithium-ion battery life over time, as they are sensitive to being stored above 30 degrees Celsius.
This existing problem is exacerbated by misalignment (when the coils in the phone and the charging pad are not directly on top of one another); the charger increases the transmitter power to compensate, resulting in yet more heat and potential battery damage. It’s hard to avoid this pitfall as the location of the coils are rarely made obvious, but with MagSafe charging, where the coils are aligned using magnets, the issue is less severe, resulting in lower heat then other standard wireless chargers....
Wireless charging requires energy to be transmitted across an air gap, a process that necessarily generates some heat. The fact that the surfaces of the phone and charging pad must be in very close proximity means that the heat exposure will damage the phone’s lithium-ion battery life over time, as they are sensitive to being stored above 30 degrees Celsius.
This existing problem is exacerbated by misalignment (when the coils in the phone and the charging pad are not directly on top of one another); the charger increases the transmitter power to compensate, resulting in yet more heat and potential battery damage. It’s hard to avoid this pitfall as the location of the coils are rarely made obvious, but with MagSafe charging, where the coils are aligned using magnets, the issue is less severe, resulting in lower heat then other standard wireless chargers....
Easy way to check the actual battery health is to run an app called CoconutBattery on a Mac computer and plug your phone into a USB port on the Mac computer.
My iPhone 12 Pro Max is around 9 months old and I’m at 100%. I use a 3rd party MagSafe charger in the car and that does 15watts.
I use the 20Watt fast charger when at home.
I use the 20Watt fast charger when at home.
Yes and for that reason I stopped. Once I stopped my battery health stopped declining as well.
Completely non scientific but anecdotally, my old iPhone XS has far better battery life than my less than a year old iPhone 12 mini. One I’ve been charging with the 5W lightning cable, one wireless exclusively.
I’ve been charging my launch day 12 Pro Max exclusively with the 5W brick from my XS Max. My 12PM is jailbroken on 14.1. I don’t let the battery get below 20%, charge overnight and top up whenever I feel the need to, and my battery health is 85%. I’m not sure of the charge cycles as I don’t have a MacBook. My almost 3yo XS Max is at 85%. I really think Apple is using cheaper batteries now.
I’m not impressed with the battery on my iPhone 12 to be honest. It’s at 88% after 14 months. My iPhone 8 Plus was at 89% when I sold it after 26 months use. I charge it no differently. I’ve lost 2% in the last 2 weeks.
My wife has had her iPhone 12 exactly the same amount of time as me and charges hers via a cord whereas mine is wireless. Her battery health is 86% and mine is 88%. I doubt there is a difference as I haven’t seen one.
I have a 3-year-old XR that's at 87%. It has been exclusively charged wirelessly.