Could you install coconut battery and let us know who the manufacturer of the battery is?
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iPhone 12 Pro iPhone 12 Pro battery health
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My 3834 mAh iPhone 12 Pro Max (3678mAh design) - 108 cycles - was manufactured by Sunwoda. Best battery I've ever had and first phone I've manually done 50-80% on (most of the time, except for vacation/work trips).
My 12 Pro Max is currently at 3254 mah, 88.3% by design capacity (system shows 88%), manufactured by a Desay corporation. I wouldn’t be surprised if everyone with a trash battery had a Desay corp. battery.
sorry dont have a mac any more so cant use coconut battery. i tried imazing on my pc and didnt show the manufacturer.
Looks like you won the battery lottery like I did. Mine is currently 200 cycles and 104.3% health. You should be able to have 100% health after 400 cycles.
That’s who made mine and I’m already at 89% in under a year. I’ve never been under 90% with any iPhone since the battery health feature appeared.
According to CoconutBattery, my 12 Pro bought in October of last year has 122 cycles and is at 93% (System says 92%). Battery was manufactured by Sunwoda.
Yeah after spending time reading I think it’s a lottery and doesn’t depend on manufacturing company. My opinion. One company might be a little better but it seems percentages vary between the two?
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FYI, 100% isn’t absolutely 100% charge. When an iPhone, iPad, etc reaches 100% charge, no more is applied (even if the device is still plugged in or on a wireless charger). Power management will allow the device to drop to 95% before restarting trickle charging to 100%. This cycle repeats as long as the device is connected to a charger. However, iOS (i.e., the battery charge percentage in the status bar) will continually show 100% and not this overcharge protection cycle. When the charger is disconnected, the status will stay at 100% until the charge decreases by at least one percent. When it does, the percentage will be updated to the actual (i.e., it could go from 100% to 99%, 100% to 98%, 100% to 97%, 100% to 96%, or 100% to 95%).
I hope that makes sense.
Makes sense but I’ve never noticed this behaviour on any device I’ve owned. Going from 100% to 95% with little usage is not normal.
Yea, this is who I have. I remember a few pages ago in this thread there are 3 (maybe 4) different makers?
Whoever they are, it's an absolute trash company.
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Or I guess it doesn't matter?? Desay, Sunwoda or Huapa.
All are near 90% or below it. I still go back to my XS Max having a 96% health after 2 years, 2 months (i miss that) before trading it in for the 12PM.
I don't even know what to say or think anymore. Batteries are extremely cheap, the actual phone AND/OR iOS is deeply flawed, or all of the above.
You could be absolutely right.
My only thoughts on this are, I've asked a few people I know who use really old iPhones as their daily drivers - hooked them up to coconutBattery and yeah, some of their capacities were down to 50-60% with thousands of cycles and they were charging all the time. My guess is that as the battery wears, you could hit a time period where it doesn't drop at all, or may drop more slowly at some points and not others.
For example: Dropping the initial first 20% of capacity really fast, then the next 10-20% takes years.
In my work Dell Laptops - seems to me that the first 15-20% drops rapidly, within the first 6 months, then it mellows out and will spend years around the 20-30% of capacity stage. <shrug> just an observation, no idea if that's what is happening here.
Battery technology today is so much better than it was in the past - the voltage requirements, the demand we place on them, the heavy non-stop usage (screen on time), and the temperature extremes (wireless charging, using in the summer, etc). I remember my Note 3. It lost 50% of it's capacity in 6 months. Yeah, I could buy an Anker replacement for like $15 or something, but those batteries didn't last at all (same for my Droid 1 batteries). My personal Dell Latitude D820 (back in the day) went from 100% capacity to 0% capacity in less than a year.
I think that's why Tesla provides that initial over capacity - so if there's an initial drop or heavy usage, the user still sees 100% even after a few years? I'm assuming.
I think showing the battery % is causing a lot of undue stress and suffering for people (I know it would me, so I'm including myself in this - despite lucking out on my battery capacity). Doesn't help these devices are getting so dang expensive either.
Kind of further cements my idea of just leasing these phones and getting a new one every few years.
I think this is it, we are paying beyond £1000 (in the UK) for a phone that should really have much better quality batteries fitted in them.
Good point/highlight. Battery performance varies over time, within different environment/ambient conditions, by unit, etc.
Some other possibilities (in no particular order):
• iOS is unreasonably using more battery — may also explain the increased heat during some usage
• Apple may have strongly countered — perhaps even too much — power saving after recent resurfacing of throttling compalints/claims
• Apple has greatly modified the battery measurement and reporting algorithms
— Before iOS 14.5, iDevice customers have reported longstanding 100% battery health, including following years of usage. This is possible with batteries far enough above design capacity but still definitely suspect.
— Despite most of the industry shrugging off the “memory effect” and recalibration being any significance to Lithium-based batteries, there’s still evidence showing otherwise:
Memory effect now also found in lithium-ion batteries
Lithium-ion batteries are high performance energy storage devices used in many commercial electronic appliances. Certainly, they can store a large amount of energy in a relatively small volume. They have also previously been widely believed to exhibit no memory effect. That's how experts call a...
About recalibration of battery health reporting in iOS 14.5 or later - Apple Support (IN)
Understand recalibration of the battery health reporting system on your iPhone
• The iPhone 11 series contained the largest batteries shipped in any other series. Frequent upgraders could just have been spoiled.
Update: 7 days later, I’m down another percent, now at 87%
Mine dropped steadily until it hit 87%. It has stayed there for a month. Go figure.
Too bad, I kinda want it to fall below 80% at this point and get a free replacement, just out of principle. Apple finds this to be 'normal' and they don't want to do anything about it, even if I'm willing to pay. What BS!
It doesn’t make sense. If you’re willing to pay why not just wait until the battery is actually done for to get it replaced. Why would you wanna waste money by getting it replaced early? There’s no point in doing that unless you’re trying to sell it to someone.
I bought the Max phone for the battery to last me throughout the day. The battery health isn’t the issue. The issue is that the phone doesn’t last all day, and that’s a pain if I’m out & about. If the phone doesn’t serve the purpose I bought it for, what’s the point of spending so much on a phone anyway?
I’m not sure you understood my argument right. But the “pain if I’m out and about” gives me an idea. The rest is irrelevant to me.