Skip to content Skip to sidebar Skip to footer

Why Your iPhone Battery Health Is Decreasing and How to Fix It

Why Your iPhone Battery Health Is Decreasing and How to Fix It

Why my iPhone battery health decreasing fast - Your iPhone battery has three main components that work together to keep your phone powered up every day. Those components are a lithium-ion battery, an internal circuit board, and a battery enclosure. Over time, these individual parts can begin to show signs of wear and tear. 

Once that starts happening, it’s time to take care of your phone by bringing it in for repairs or by replacing it with a new battery. To help you understand why your battery is deteriorating and how you can fix it, Mobilintec Team outlined the causes for your decreasing battery health below:

Your iPhone Battery’s Cause of Aging

If you’ve been keeping your iPhone in a cool location while plugged in, your battery health is likely deteriorating. This is because a lithium-ion battery’s lifespan is shortened when it is kept at a low temperature. Additionally, this low temperature drastically lowers the battery’s ability to hold a charge. It’s especially important to make sure your iPhone battery is kept cool when you’re not using it. 

If you store your iPhone when it’s plugged in, there’s a good chance its battery is aging. This can also happen if your iPhone has been unused for a long period, such as during the holidays. Even if you keep your iPhone battery healthy by avoiding these issues, there’s still a chance it will suffer from the other causes listed below.

Overheating and Dust Contributing Factors

Overheating and dust are likely causing your battery to diminish faster than normal. These problems occur when your iPhone’s enclosure isn’t completely air-tight, which allows outside contaminants to enter the phone. A build-up of dust and harmful substances in the enclosure leads to overheating and decreased longevity of your lithium-ion battery. 

To ensure your iPhone battery doesn’t overheat and get damaged, make sure to keep it in an airtight container when not in use. If you use your phone often during the day, you can also try to keep it in a cool location until the battery is fully charged. While dust-particle buildup inside your iPhone’s enclosure may not cause any issues until your battery is near death, it can damage a new battery that is still in good condition.

Weak Internal Circuitry and Shrinkage

When the components inside your iPhone have become worn, the lithium-ion battery’s ability to store energy is greatly diminished. Since the internal circuitry relies on the battery to supply power to the phone’s functions, this will lead to slowdowns or crashes. Eventually, your iPhone will no longer be able to charge while connected to a power source, which is a major problem. 

To solve this issue, you need to bring your phone in for repairs or replace the battery with a new one. If you can’t do either of those things, you can try to solve the issue by performing some troubleshooting steps like restarting your phone, allowing it to completely discharge, and charging it for an extended period.

Why New Batteries Are Always the Solution

Most Apple care repair centers will tell you to just charge your phone more often. While that may work for a brand-new battery, it will not solve the issues you are experiencing with your aging iPhone battery. New batteries come with a full charge and will work best when they have not had any use. 

If your phone is charged, the new battery will not be fully tested and may not work as well as it would if it were completely drained. Additionally, if your phone is connected to a power source while the new battery is charging, the charging cycle will not be completed and it will not have a full charge.

How to Maintain a Healthy Battery

The best way to keep your battery healthy is to keep charging it. If your phone doesn’t have a removable battery, you can also keep your iPhone in a charger when not in use. The same is true if you have a dock or charging stand that keeps your phone plugged in all the time. If possible, keep your phone as far away from your body as possible. 

This is because heat is generated by your body and can negatively affect your phone’s battery. Also, try to avoid keeping your phone on vibration when it is not being used. If you have to pick one tip to follow, this is it. Keeping your phone away from your body and only using it when necessary will greatly improve the health of your battery.


If you’ve managed to make it through this article, you are likely interested in knowing how to maintain a healthy battery on your iPhone. The best way to keep your battery healthy is to keep it charged, avoid keeping it hot and avoid using your phone when it is not necessary. 

Keep your phone in a cool environment if you don’t plan on using it, never keep it plugged in when it is fully charged, and try to keep the phone away from your body as much as possible. These tips will help you keep your iPhone battery healthy for as long as possible. 

We’ve outlined the causes for your decreasing battery health above, as well as how to maintain a healthy battery. We hope these tips will help you solve the issues causing your iPhone battery to age faster.