Why is my iPhone charging very slowly after 80%?

Why is my iPhone charging very slowly after 80%?

It is not uncommon for iPhone users to experience slower charging after their battery is 80% full. This is because of Apple’s built-in battery optimization feature, which slows down charging when the battery reaches 80%. This feature is intended to keep your iPhone battery healthy and prevent it from overcharging. While it can be inconvenient, it is actually beneficial for your iPhone’s battery life in the long run.

Why Does My iPhone Slow Down Charging at 80%?

When your iPhone battery reaches 80%, the charging speed is automatically reduced to prevent it from overcharging. Overcharging can damage your iPhone battery and cause it to wear out faster, so Apple’s built-in optimization feature is designed to keep your battery healthy.

Question Answer

What is the reason behind iPhone battery slow charging after 80%?

The main reason behind the slow charging of an iPhone battery after 80% is Apple’s built-in battery optimization feature, which slows down charging when the battery reaches 80% in order to prevent it from overcharging.

Can I switch off the battery optimization feature?

No, the battery optimization feature cannot be switched off as it is built into the iOS and cannot be disabled.

What happens if my iPhone is overcharged?

Overcharging your iPhone can damage your battery and cause it to wear out faster. It can also cause your iPhone to heat up and increase the risk of fire.

Is it safe to charge my iPhone overnight?

It is not recommended to charge your iPhone overnight as this can cause your battery to overcharge and shorten its lifespan. It is better to charge your iPhone when the battery is below 80%.

How can I increase the charging speed of my iPhone after 80%?

You can try using a higher wattage charger or using a USB-C to Lightning cable to increase the charging speed of your iPhone after 80%. However, it is still not recommended to charge your iPhone after it has reached 80%.

Are there any other ways to improve my iPhone’s battery life?

Yes, there are a few ways you can improve your iPhone’s battery life. These include reducing the brightness of your screen, reducing the number of apps running in the background, and disabling location services when not in use.

What should I do if my iPhone is taking too long to charge?

If your iPhone is taking too long to charge, you should check that it is not connected to a low wattage charger or a damaged cable. You can also try using a higher wattage charger or using a USB-C to Lightning cable for faster charging.

Tips for Improving iPhone Battery Life

In order to keep your iPhone battery healthy and prevent it from overcharging, there are a few steps you can take. First, make sure you are using a charger that is compatible with your iPhone and has the correct wattage. You should also avoid charging your iPhone after it has reached 80%. Additionally, you should reduce the brightness of your screen, reduce the number of apps running in the background, and disable location services when not in use. All of these steps will help to extend the life of your iPhone battery.



Apple’s built-in battery optimization feature slows down charging when the battery reaches 80% in order to prevent it from overcharging. This can be inconvenient for iPhone users, but it is actually beneficial for your iPhone’s battery life in the long run. To keep your iPhone battery healthy, it is important to use a charger that is compatible with your iPhone and has the correct wattage. Additionally, you should reduce the brightness of your screen, reduce the number of apps running in the background, and disable location services when not in use.

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