Phone Battery Drain So Fast? Causes & Fixes (iPhone & Android)

apps draining phone battery

You fully charge your phone at night, but by morning, the battery has already dropped significantly—or worse, it dies in the middle of the day. If this sounds familiar, you’re not alone. Many people ask:

  • Why is my phone battery dying so fast all of a sudden?

  • How do I stop my battery from draining so fast?

  • Why does my phone lose battery when I’m not using it Android?

To be honest, poor battery drain seems to have too many reasons in the background—apps that don’t stop running, wrong settings, weak signal, or worn-out batteries. Anyway, don’t strain yourself; all that can be easily fixed.

In this guide, we are talking about reasons that make your phone battery drain fast along with practical solutions for Android and iPhone users.

Common Reasons Why Your Phone Battery Drains So Fast

1. Apps Working Behind the Scenes in Real Time

Many apps (social media, messaging, ride-hailing) keep refreshing in the background while they are not used by you.

  • On an Android, go to Settings > Battery > Background Usage and restrict apps.
  • For the iPhone, turn off Background App Refresh under Settings > General.

2. Screen Brightness and Display Settings

The screen of your phone is the biggest battery drainer.

  • Do not keep brightness level at a hundred percent.
  • Ensure Auto-Brightness is turned on.
  • Set screen timeout to 30-60 seconds.

3. Charging Habits Followed

Ever wondered: Why does my phone charge quickly and drain quickly?

The above phenomenon can occur, usually, due to:

  • Using cheap or unapproved chargers.
  • Charging overnight to 100% every day.
  • Heat damage while charging under a pillow or in a case.

Fix: Use certified cables and chargers. Unplug when the phone hits ~80-90%.

4. Software Bugs After Updates

Many users complain:

  • Why is my Samsung phone battery draining so fast all of a sudden?

  • Why is my phone battery dying so fast all of a sudden iPhone?

It is usually due to a buggy iOS or Android update

  • Look out for the patches under Settings>Software Update.
  • If the problem persists, you could try a reset of the settings (not complete resetting).

5. Weak Network Signal

Your phone does work for reception overtime in low-signal areas, killing the battery quickly.

✅ Fixes:

  • Activate Airplane Mode in places where service is unwanted.
  • Preferably, you should use Wi-Fi calling as opposed to mobile data.

6. Location Services Always On

GPS is another power-hungry app: maps, weather, and ride-sharing can all request your location in the background.

✅Fix: Only select “While using App” as opposed to “Always On.”

  • Android: Settings> Privacy> Location.
  • iPhone: Settings> Privacy> Location Services.

7. Ageing or Degrading Battery

Batteries gradually lose capacity as time goes by. If your phone is 2-3 years old, fast drain could just mean the battery is becoming old.

  • For iPhones, please refer to Battery Health (below 80% = weak).
  • For Androids, you may want to download a battery health app.

How to Stop Battery Drain on iPhone

If you’re an iPhone user asking: How to reduce battery drain iPhone? try these:

  • Turn on Low Power Mode.

  • Disable Background App Refresh.

  • Lower brightness or enable Auto-Brightness.

  • Use Optimized Battery Charging.

How to Stop Battery Drain on Android

For Android users asking: Why does my phone lose battery when I’m not using it Android? try these:

  • Check Battery Usage for apps draining power.

  • Enable Battery Saver Mode.

  • Turn off features like Bluetooth, Hotspot, and NFC when not needed.

  • Uninstall unused apps.

Quick Fixes Table

 

Problem Fix
Battery drains overnight Turn on Low Power / Battery Saver
Battery drains after update Install patches or reset settings
Phone charges fast but dies fast Check charger + replace weak battery
Battery drains while not in use Restrict background apps, disable GPS

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Final Thoughts

So why in the world is my phone battery dying so fast all of a sudden?
The usual culprits are background apps, bad signals, poor charging habits, or an old battery.

Fear not, by following these Android and iPhone fixes, you’ll be saving the life of your phone from those irritating multiple charges throughout the day.

In case the phone loses charge so easily after all those fixes, it is high time it had a battery replacement.

Tip: Save this page and share it with your friends who keep whining about an exhaustingly quickly draining battery-it could save them a lot of aggro!

Author

  • fixlp

    Adnan John founded FixLP and leads our content team. He’s spent over fifteen years fixing tech, solving software issues, and figuring out home gadgets. Adnan’s all about turning messy problems into simple, doable steps.

Phone Battery Drain So Fast? Causes & Fixes (iPhone & Android)

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