You charge your iPhone overnight; unplug it at 100%, and by noon, it’s already asking for a charger. Sound familiar? You’re not alone. Many iPhone users in the US face draining batteries, and it’s really frustrating.
The good news is that in some cases, a few simple changes can completely improve the situation. In this guide, you’ll find out why your iPhone battery drains faster than it should, what’s using power in the background, and how to fix it step by step.
Whether your battery is draining overnight, dying while charging, or running low after an iOS update, there’s usually a reason behind it.
Why Is Your iPhone Battery Draining So Fast?
Before diving into solutions, it’s helpful to understand what’s really happening. iPhone batteries don’t drain for no reason; something specific is always to blame. Here are the common causes:
• Background App: Refresh runs apps even when you’re not using them.
• Screen brightness: A high screen brightness can burn through the battery quickly.
• Location Services: Location Services may be 24/7 for apps that don’t need it.
• Push notifications: Push email and notifications are constantly contacting servers.
• Aging battery: An aging battery has lost its capacity.
• System Bug: iOS bugs after a software update can cause issues.
• Poor Signals: A poor cellular signal forces your phone to work harder.
Any one of these can lead to battery drain, and having several together means your battery might not last half a day.
Read this: Your Mobile Is Not Charging? Quick Fixes You Can Try
How to Check What’s Actually Killing Your iPhone Battery
The first step is to open Settings and go to Battery.
Here you’ll see two details: your battery health percentage and which apps have used the most power in the last 24 hours or 10 days.
Battery Health: The Number That Matters
Go to Settings > Battery > and tap Battery Health & Charging.
If your maximum capacity is below 80%, your battery has significantly. No software fix can solve the problem.
Apple considers batteries below 80% for service. If your battery health is above 85% and you’re still draining fast, the issue is software- or settings-related and completely fixable.
The App Usage Breakdown
Check which apps top your battery usage list. If you see something like Facebook, TikTok, or even a weather app using 30–40% of your battery, that app is the issue.
13 Ways to Fix iPhone Battery Draining Fast
1. Turn Off Background App Refresh
This is the hidden battery drain many people overlook.
Background App Refresh allows apps to update their content even when you’re not using them.
This feature seems useful. Quietly drains your battery all day.
Go to Settings > General > and select Background App Refresh.
Turn it off entirely. Disable it for apps that don’t need live updates, like social media, games, or shopping apps.
2. Reduce Screen Brightness and Enable Auto-Brightness
Your screen consumes a lot of energy.
Keeping it at full brightness is like leaving your car running in the driveway.
Go to Settings > Accessibility > and tap Display & Text Size.
Make sure auto-brightness is turned on.
Manually adjust the brightness slider in Control Center to about 40–50% for use.
3. Review and Limit Location Services
Many apps request “always” location access when they only need it while you’re using them—or not at all.
Go to Settings > Privacy & Security > and select Location Services.
Set apps to “While Using the App” and turn location off entirely for games, shopping, or productivity tools that don’t need to track you.
4. Disable Push Email (Switch to Fetch)
Push email keeps your iPhone connected to your mail server, waiting for new messages.
It’s convenient. It steadily drains your battery.
Go to Settings > Mail > tap Accounts > and select Fetch New Data.
Turn off Push. Change your fetch interval to every 30 minutes or set it to manual.
You’ll still receive emails without your phone working overtime for them.
Read this: Smartphone Evolution History From 1994 to Today
5. Check for a Problematic App Running in the Background
Sometimes a coded app can cause your iPhone battery to drain quickly.
After reviewing your battery usage, if one app shows a percentage, try the following:
• Force-quitting the app
• Deleting and reinstalling it
• Checking for updates
Social media apps, especially those with video feeds, often cause issues.
6. Update iOS (or Roll Back if the Issue Started After an Update)
If your battery started draining after a software update, you’re not imagining it. iOS updates can sometimes introduce bugs that increase background activity.
Check Settings > then General in a week of a problematic release.
Keeping your iPhone updated is generally the approach for battery performance and security.
7. Enable Low Power Mode When You Need It Most
Go to Settings > Battery > and select Low Power Mode (or just ask Siri to turn on Low Power Mode).
This feature reduces background activity, lowers screen brightness, and pauses email fetching, often adding a couple of hours of battery life.
Use it proactively when you expect to be away from a charger for a while.
8. Fix iPhone Battery Draining While Charging
If your battery drains while charging, a few issues could be at play:
• You might be using a wattage or non-Apple charger.
• The Lightning or USB-C port may have lint or debris blocking a connection.
• A demanding app might be running in the foreground, using power faster than the charger can provide it.
• Your cable may be damaged.
Check the charging port gently with a toothpick, use Apple’s charger, and keep the screen off while charging.
9. Stop iPhone Battery Draining Fast Overnight
If you notice your battery is much lower in the morning, check these settings:
• Turn off Wi-Fi Calling if you have a cellular signal.
• Disable Hey Siri as it keeps the microphone active waiting for your command.
• Turn on Airplane Mode in areas with cell signal (your phone uses battery searching for a tower).
• Enable Optimized Battery Charging under Battery Health to reduce overnight charging wear.
10. Reset All Settings
If you’ve tried the above and your iPhone battery still drains fast, resetting all settings (without erasing your phone) can help clear hidden conflicts.
Go to Settings > General > tap Transfer or Reset iPhone > select Reset, and choose Reset All Settings.
You’ll need to re-enter Wi-Fi passwords. Adjust preferences again, but your photos and data remain safe.
11. Check for Extreme Battery Drain After iOS Update
After iOS updates, iPhones may run hotter and drain faster for 24–72 hours while the system re-indexes files and updates app data. This is normal and usually resolves itself.
If the issue lasts beyond three days, try a reset by pressing volume up and volume down and then holding the side button until the Apple logo appears.
Read this: Stop iPhone Overheating While Charging With These Tips
12. Restore Your iPhone (Reset)
If nothing works and your battery health is still good, a full restore through iTunes or Finder can fix any software issues.
Back up your iPhone, then restore it as a new device.
13. Replace the Battery
If your battery health is below 80%, no setting will fix what is essentially a worn-out battery. Replacing the battery through Apple costs around $99 for models as of 2025 and can make an older iPhone feel new again.
Third-party options exist. They may affect your battery health reporting.
My Personal Experience Fixing This Issue
Months ago, my iPhone 14 Pro started dying by 2 PM every day. I thought the battery was failing. The health percentage was still at 89%, which seemed okay. After checking the battery usage screen, I quickly found the problem: the Instagram app was using 34% of my battery even though I barely used it.
Background App Refresh was on for it. Instagram had been refreshing its feed in the background every few minutes all day. I turned off Background App Refresh for Instagram, set location services to “While Using” for apps, and disabled push email.
That afternoon, my iPhone lasted until 9 PM with 28% remaining. Same phone, same habits. Just smarter settings. The fix took more than 10 minutes. If your battery is draining fast, there’s usually a reason, and once you find it, the solution is often simple.
Conclusion
A fast-draining iPhone battery is annoying, but it’s rarely a death sentence for your phone. In most cases, the fix comes down to a few settings changes — turning off background refresh, reining in location access, or identifying a rogue app that’s secretly burning through your power.
Start with your Battery Health percentage. Then check the app usage breakdown. Work through the fixes above one at a time, and you’ll likely find the culprit within the first three or four steps.
Ready to stop babysitting your charger? Bookmark this guide, share it with someone whose iPhone is always dying, and if your battery health is under 80%, consider getting it replaced — it’s one of the best investments you can make in an older iPhone.