Battery Health Capacity Dropped

JabroniCorleone wrote:

1. I agree! My iPhone 11 Pro Max is now 3 month old and I charged it 40 times and it has 100 % in Settings and coconut battery. Everybody who hast drops in % charge it wrong!

never use fast charge only 5 w charger

2. Only charge to 80% sometimes 100% (2 times in a month)

3. never uncharted lower than 30%

if you all would do this your battery would still be at 100% health

So your single experience is more valid that everyone else's?

Your charging suggestions, while harmless, are 1) not necessary and 2) will not prevent a decrease in battery health.

When to charge your iPhone or iPad - Apple Community

souhaile wrote:

Hello everyone,

I bought my iPhone 11 pro max in 31th october 2019 and until today I lost 4% of my battery capacity,

https://discussions.apple.com/content/attachment/939a09fd-42e4-4d01-92cf-0dbf76e93cbe

this is coconutBattery statistics

I am using a certified cable charging that I found is reference in https://mfi.apple.com/MFiWeb/getAPS

Do you think it's quite normal this drop of 4% ?

Well - coconutBattery says that you lost 2.1%. After 4 months that's OK. It's really difficult to account for the variations in battery degradation. Apple sets a design target, but batteries aren't perfectly predictable when it comes to how fast the capacity drops.

Profaniter13 wrote:

Okay, this could probably means nothing to everybody but I recently discovered this. I purchased the iPhone 11 Pro Max on the preorder day and got it on the launch day. So the battery health was at 100% but as of today, it dropped ONE percent. I tried to figure out why and what did I do wrong. so what I did was when I fully charged the phone, I unplug. I let it drains down to 20%. Prior to doing to maximize the performance, I had no clues how to get the best out of my battery life. The Apple tech support explained that I should have let the battery get down to 20% with however usage I use: normal or heavy. Once it gets to 20%, I recharge it. I even checked the optimized battery charging to ON. So, I have no idea why it dropped 1 percent to 99 now... I mean, this is a two months old iPhone and I never had this issue with iPhone 7 Plus, I remembered the battery health was at 98% after ONE year. I mean, already in two months, it dropped 1 percent.

Can anyone help me to understand what and why this happened?

What you're seeing is absolutely normal. Your battery capacity will continue to decline until the battery is no longer fit for use. That's the way it works.

There is no reason to be checking battery health unless your phone isn't working properly or you're nearing the end of your warranty. If your battery drops below 80% while under warranty, Apple will replace it.

See this article for additional advice:

When to charge your iPhone or iPad - Apple Community

drishti04 wrote:

I got iphone 11 last month ie. 1st March, today is 1st April, my phone’s battery has drained down to 1% & simultaneously i got one more phone for my family dame model that phone’s battery is perfect on 100%. whereas i never experienced this in the iphone 7. What is wrong with these batteries. Any solution?

If your Battery Health is at 1% on a phone that isn't even a month old, there is something wrong with your phone. Make arrangements with Apple to have it evaluated.

Genius Bar Reservation and Apple Support Options - Apple

Sahibnoor wrote:

1)First drain all your iphone battery to 0 percent

2) Use a 5W charger that comes with to charge your iphone 11 pro max.I will take 3-3.5 hrs to fully charge iphone (slow charging)

3) It will give you a good battery backup and use low power mode along with that.With this you will get the best battery backup.

4)Charge your iphone only when battery falls below 30 percent

I am doing this and after 6 months of usage my iphone 11 pro max battery health is at 97 percent.

That's very inaccurate advice.

See this article:

When to charge your iPhone or iPad - Apple Community

ukdolfan wrote:

It’s you self proclaimed experts who say

1)Only use your phone when your battery is between 20-80% so only use 60% of the battery not the full 100%

2) Only use the Apple charger plug the 11 Pro Max came with (not practical in real life)

3) Only use the Apple cable that came with the 11 Pro Max..... (not practical in real life)

I have never said any of those things. You should use your phone at whatever percentage it's at as long as it's not 0%. You should charge it whenever you can or want to.

When to charge your iPhone or iPad - Apple Community

I do recommend that you use only Made for iPhone certified cables. Other cables can cause actual problems at worst and, at best simply work erratically. But, sometimes, you use what you have.

Personally, I've never worried about the plug. I tend to use iPad plugs as, I also have an iPad and I dislike switching things around.

Joseph - i followed these steps :

1. Full backup on iCloud
2. Reset all the settings on iPhone.
3. restore only ios from itunes from laptop
4. restore all data and apps from icloud.

My battery % jumped from 94% previously to 98%. Trick was Restore ios only from itunes from ur laptop AND backup and restore of data from icloud. Think about following that.

For anybody who is unhappy with how the battery health part of their iPhone works you can leave apple feedback here - Product Feedback - Apple

If you want your battery checked you can contact Apple here - Contact Support

Apple does not read the comments on this community, so your best to contact Apple Support for help with your batteries

Thanks

Lloyd_1 wrote:

Just the month of August my iphone 11 has dropped from 91 to 89. I don’t know what to do now, cause I don’t wait for 100% or get to 20%. I charge once a day. Apple why please

The drop in capacity is not necessarily linear. It can stay the same for months then drop several points.

There's also no particular reason to wait until you get to some specific percentage to charge you phone.

When to charge your iPhone or iPad - Apple Community

Hi, you can check this resources: iPhone Battery and Performance

Maximizing Battery Life and Lifespan

Make sure to download the latest iOS update on your phone, go to Settings > General > Software Update.

Backup your phone - How to back up your iPhone, iPad, and iPod touch

Restore your phone as new - Restore your iPhone, iPad, or iPod to factory settings

Setup your phone - Set up your iPhone, iPad, or iPod touch

Hi, what you're experiencing is perfectly normal, no need to worry about it unless the battery drains quickly from 100% down to 30% in a few minutes then that would be a problem.

Check this resources: iPhone Battery and Performance

Maximizing Battery Life and Lifespan

khushi244 wrote:

Hello, its been 8 months since i bought my iphone 11 pro max and my battery health is 94% already, this is my first iphone purchase and if anyone has any tips please let me know.

Tips for what? Your phone appears to be functioning normally. You have nothing to worry about.

See these articles for more information:

iPhone Battery and Performance - Apple Support

When to charge your iPhone or iPad - Apple Community

JabroniCorleone wrote:

1. Use my battery charging advise and you battery will be good as new after 1 year of usage.

Charge before it drops under 30%

2. Charge to 80% or 90% and one or two times in a month to 100%

3. charge your phone often for short periods

4. do not use you Phone as navigation in summer on the windshield were the sun heats up the phone. It will drastically decrease your health

Other than #4, none your suggestions are necessary.

When to charge your iPhone or iPad - Apple Community

Jazpersimpin wrote:

hey im pretty much late like 2 years but ive had my iphone 7 since 2017 and my capacity is currently at 98% and the best way i could explain is don't charge to 100% charge it to 80%

No, that would not be the reason.

When to charge your iPhone or iPad - Apple Community

What hurts is having the phone sit at high charge levels. Going to 0% is comparatively benign.

Actually that's backward. Leaving a lithium-ion battery at 0% is harmful. Charging it to 100% is not.

When to charge your iPhone or iPad - Apple Community