How to increase battery capacity on my iPhone 11?

@PiaPR

You guys are not on the same track. What you understand was about to increasing the battery capacity changing by a bigger power pack battery. However the article was not about that. The factory installed battery capacity shown under battery health and charging >Maximum capacity number ( in %) can't be increase by any of false inputs. It becomes decreased with time to time. However if you change the battery by a new one, You'll have 100% capacity untill it wears out again.

Thank you

renganathan16 wrote:

How to increase battery capacity

You cannot increase your battery capacity. Batteries are consumables. The battery health percentage is going to go down and there's nothing you can do about that. Avoid draining it completely and avoid leaving it in very hot places (e.g. direct sunlight in a closed car in the summer).

See also:

When to charge your iPhone or iPad - Apple Community

They do not really decrease quickly, it all has to do with your usage and charging habits. Your battery should generally loose between 1-2% capacity per month. When your battery reaches 80% capacity, Apple will replace it. If it is less than 80% before a year is up, Apple will replace it under warranty. If it past 1-year and you have AppleCare+, then will replace it at a reduced cost.

Batteries are a consumable product, and they will always lose capacity over time. See this information provided by a fellow ASC User.

Thanks to ASC User Lawrence Finch for this review.

Batteries are consumables; they lose a little capacity every time they are discharged, then recharged. On average this works out to about a 1% loss for every 25 “full charge cycles” ( some will be a little more, others a little less). As one example, if you charge the phone overnight, every night (and that is what you should do; it is a best practice), it starts the day at 100%. If it drops to 20% by the end of the day before you charge it again overnight that counts as 0.8 full charge cycles (20% to 100%), or about 24 full charge cycles per month of use. For this example your battery capacity will lose about 1% per month. Of course, if the end-of-day level is higher than 20% the capacity loss will be a little less, and if it is lower than 20%, or you charge it during the day, the capacity loss will be higher.

The absolute best way to improve the life of your battery long term is to enable Optimized Battery Charging (Settings/Battery/Battery Health) and charge the device overnight, every night. The battery will fast charge to 80%, then pause. During the night the phone will use mains power instead of battery power, allowing the battery to “rest”, and thus reducing the need to charge the battery quite as often. The phone will resume charging to reach 100% when you are ready to use your phone; it will “learn” your usage pattern. If you enable iCloud Backup (Settings/[your name]/iCloud - iCloud Backup) the phone will back up overnight also, assuring that you can never lose more than the current day’s updates.

PiaPR wrote:

I am really having problems with the statement "You cannot increase your battery capacity."

What is your problem with the statement? You cannot increase the maximum capacity of a battery. It will always go in only one direction - down.

I am just now replacing my iPhone 6s battery for the second time, and every time I buy a replacement battery the available mAh increases. I think the original battery was 1800 mAh, the first replacement 2200 mAh, the new one I just bought online claims 3200 mAh. So, ah, I think you can increase your battery capacity.

You can buy a battery with a higher initial capacity but you still cannot reverse the battery aging process.

It is starting to bulge my phone apart.

This is a sign of a seriously aging battery. Turn off your phone and unplug it. Do not plug it back in until you have the battery replaced. You are at risk of damaging your phone and possibly causing a fire.

Bob Timmons wrote:

Battery Health / Maximum Capacity only goes in one direction......down. When the capacity is down to 80%, it is time to replace the battery.

The actual battery health only goes in one direction – down.

It may be possible for the displayed estimate to fluctuate, especially if there is an iOS update that changes how the software estimates the battery health.

Battery Health / Maximum Capacity only goes in one direction......down. When the capacity is down to 80%, it is time to replace the battery.

Hi, thanks for reaching out. One pro tip is to try to keep your battery between 30 and 80%. Also make sure to enable the optimized battery charging switch in the settings app > Battery > Battery Health and Charging. With this switch toggled on your iPhone will learn, when to be charged based on your usage. Kind regards.

If you are going to say something with that much empathis on "cannot" you need to be more specific and say, for instance: you cannot increase battery capacity without changing out your battery and many offers of higher mAh batteries are fraudelent, so beware. There are also backup batteries, though. Larger "plus" size phones with bigger screens can also accomodate bigger batteries that last longer, so that's a thought when buying a replacement phone.

My Loctus battery 2200mAh from their own website was a good battery and did good service for years. I should quit gaming on my phone, though. I had been using it with the case off to dissipate heat. My phone just started bulging very recently (no screen seal with the last battery replacement, either) and this morning it wouldn't charge anymore. My Amazon Black Friday purchased battery is on its way but delayed by Black Friday shipping glut. Fingers crossed on quality.

What Idris provided was correct based on the question asked by the OP. Apple does not sell their OEM batteries and will only replace like batteries in a device and it will be the same capacity as the original. Of course, if you purchase a different phone, that may come with a higher mAh battery, however the capacity of that battery as measured in the phone will still begin at 100%. If you purchased an aftermarket battery for an iPhone that has a higher mAh rating, that can make a difference, but is not supported by Apple. The OP's question was based on wanting to increase the capacity of their particular phone, since they identified the iPhone 11. And, Idris' response for this is from May of 2023.

The problem I experienced with the new technology of cramming more mAh in the same size batteries (actually I have noticed they are a few millimeters longer, as well, but still fit fine) is that the iOS battery management system is designed to work with say the original 1800 mAh and I replaced with a good quality Loctus 2200mAh that lasted quite a few years, but towards the end when it started running out too soon, overheating and then progressed to auto shutdowns right before shutting down completely and refusing to charge and the battery management system was still saying my battery was still 100% capacity when it was totally trashed. I had a new battery arrive on my porch the same day my phone refused to charge any more and shut down completely, so it was a near thing. Having a new battery is like having a new phone. It's so nice! Next time, I won't wait for the battery management to tell me my battery is toast. If it is overheating and running down too fast, and your phone is just not performing for you, get a new battery right away! Depending on the mAhs of the last battery installed in your phone, the battery management assessment might not be totally accurate. Once auto-shutdowns start you've got maybe a week or less before the phone shuts down completely. Don't wait!

I was wondering if anyone had any experience with add-on battery management apps available in the App Store and if they work better with higher mAh batteries, but it is not really necessary. Now, experiencing a fully working phone again with a new battery, I will never wait that long again--performance really suffers! I was blaming it on an app I was using, which may have exacerbated things, but it was really just the battery. Now I know the signs of a dying battery, I will act sooner. Batteries are pretty easy to replace on a 6s for me. If you have nimble enough fingers is a good choice to DIY.

I am really having problems with the statement "You cannot increase your battery capacity." (I am also really impressed with the fact that you bothered to get italics for "cannot". cool.) I am just now replacing my iPhone 6s battery for the second time, and every time I buy a replacement battery the available mAh increases. I think the original battery was 1800 mAh, the first replacement 2200 mAh, the new one I just bought online claims 3200 mAh. So, ah, I think you can increase your battery capacity. The 2200 mAh was a good battery for a good while. My question actually was: how does the iOS battery management system deal with the increased mAh? Right now my 2200mAh battery is failing and causing my system to reboot a lot. I also have an app that eats a lot of battery and the phone tends to overheat from it. The battery is having trouble holding a charge as well. The reboots tend to turn on the bluetooth and THAT really eats up battery and I end up with a dead battery and I leave it plugged in too much which doesn't necessarily help. Battery management says my battery is still fine but it is not. It is starting to bulge my phone apart. It also speaks to the fact that the 2200mAh was a real thing. So just wondering what others might know about this.

PiaPR wrote:

If you are going to say something with that much empathis on "cannot" you need to be more specific and say, for instance:

Here's a thought: you don't tell me what I should say or how I should say it when what I said was factually correct and I won't tell you everything that's wrong with your posts? Agreed?

Why do apple phones battery decrease so quickly.. I got my phone Christmas 2022 and by July 2023 my battery health was below 95% now it’s March 2024 and my battery health is 87% me and my friend are both having this problem no matter what we do

Various persons confidently state that you should not drain your battery completely.

I thought it is good to drain Li-ion batteries completely and it was not so good with NiCad or NiMH.

Indeed Li-ion thrives on deep discharging and has zero shadow effect. (Won’t suffer a reduction in capacity by not charging to 100%)

Si why do people repeat an issue related to earlier technologies that is just not applicable to li-ion? I’m happy for a chemical engineer to correct me but, hey guys, get your facts right.

Also, to stop overheating (thermal runaway) Li-ion batteries contain circuitry which balances input and output loads.

Seamus6977 wrote:

Various persons confidently state that you should not drain your battery completely.

I thought it is good to drain Li-ion batteries completely and it was not so good with NiCad or NiMH.

It's not true of either battery chemistry. Lithium ion batteries are just somewhat less likely to be permanently damaged by doing so.

Indeed Li-ion thrives on deep discharging and has zero shadow effect. (Won’t suffer a reduction in capacity by not charging to 100%)

Where are you getting this information?