What Causes iPhone Battery to Drain Fast and Solutions

Published: 30 Jun 2025

Tired of charging your iPhone again and again throughout the day? You’re not alone. A lot of users face this daily struggle. When iPhone battery capacity drops too fast, it becomes hard to rely on your phone. You miss calls, lose charge during games, or can’t make it through a full day. The good news? You can fix this problem with a few simple steps.

iPhone Battery Drain Fast & its Solution

Common Reasons Why iPhone Battery Capacity Drops Fast

Here are the most common reasons your battery capacity drops, and what’s causing it behind the scenes.

Table of Content

Common Reasons Why iPhone Battery Capacity Drops Fast
Conclusion
FAQs

Background App Refresh and High Usage

Did you know apps can keep running even when you’re not using them? This drains your battery in the background without warning. We often forget to close apps, and that adds up fast. Especially apps like social media, maps, or games.

You can fix this by turning off background app refresh. Go to Settings > General > Background App Refresh and disable the apps you don’t need running all the time. You’ll notice your battery lasting longer.

Charging Habits That Damage the Battery

Do you charge your iPhone overnight? Many people do, but it can hurt the battery in the long run. Charging to 100% and keeping it plugged in can stress the battery.

Try to unplug your phone once it reaches around 80%. Also, avoid letting it drop below 20% too often. Keeping it between 20 To 80% helps your iPhone battery capacity stay healthy.

iOS Updates and Software Glitches

Sometimes, a new iOS update can cause fast battery drain. It might be a bug or a setting that resets in the background. Many users feel their battery gets worse after updating.

You can fix this by checking your battery usage in Settings. If an app is using too much power, update or delete it. Also, restart your phone after updates to refresh the system.

Using Non-Original Chargers or Cables

Using cheap or fake chargers might save money, but they damage your battery. They don’t give the right power flow, which wears out the battery faster. Your iPhone is designed to work best with original or certified cables.

Always use Apple-certified chargers (MFi). If you care about your iPhone battery capacity, this is one of the easiest ways to protect it.

Overheating and Constant Heavy Tasks

Too much heat is bad for any battery. If you use your phone in the sun or run heavy apps like games or video editors, it heats up fast. This causes the battery to wear out quickly.

Try to keep your phone cool. Avoid using it while charging or under direct sunlight. Close heavy apps when not needed; it really helps.

Battery Aging and Natural Wear Over Time

Like any device, iPhone batteries age. After about 500 full charges, the battery starts to lose its full capacity. This is normal and happens to every phone.

You can check your battery health in Settings > Battery > Battery Health & Charging. If it’s below 80%, it might be time to replace it. Until then, follow the tips above to make the most of it.

Conclusion

In this article, you learned what causes iPhone battery capacity to drop and how to fix it. Most issues come from everyday habits, but small changes can make a big difference. You don’t need to be a tech expert to make your battery last longer. I personally recommend using Apple-certified chargers and watching out for overheating—it helps your phone in the long run.

If you enjoyed this, don’t stop here. Our blog is packed with more helpful mobile tips. Stay curious, stay updated—and make every charge count.

FAQs

Is it bad to charge my iPhone overnight?

Yes, it can be. Charging to 100% and keeping it plugged in overnight puts extra stress on the battery. It’s better to unplug it around 80%.

How do I check which apps are using the most battery?

Go to Settings > Battery, then scroll down to see app battery usage. It shows what’s draining your phone over the last 24 hours or 10 days. You can then close, delete, or update high-usage apps.

How can I stop my iPhone from overheating?

Avoid using your phone while charging or in direct sunlight. Close heavy apps like games when not in use. Keeping your phone cool helps protect the battery.

How long does an iPhone battery usually last?

An iPhone battery is built to last about 500 full charge cycles. After that, its capacity starts to drop. This usually takes 1–2 years, depending on use.

Can iOS updates cause battery drain?

Yes, sometimes updates have bugs or reset background settings. This can lead to faster battery drain. Restarting your phone and checking settings after updates can help.

When should I replace my iPhone battery?

If your battery health is below 80% or your phone can’t last a full day, it’s time. Replacing the battery can improve performance. Apple or authorized repair centers are the safest options.