Phone & Tablet

Beginner

2 min read 6 stepsMarch 31, 2026Verified March 2026

Why Is My Phone Battery Dying So Fast? (And How to Fix It)

If your phone battery isn't lasting the day, these simple changes can double your battery life.

At a Glance

Lower your screen brightness

~22s

Your screen is the biggest battery drain. Pull down from the top of your screen and drag the brightness slider down to around 50%. Or enable Auto-Brightness: on iPhone go to Settings > Accessibility > Display & Text Size > Auto-Brightness. On Android go to Settings > Display > Adaptive brightness.

Quick Tip

Even dropping brightness from 80% to 50% can add an hour or more of battery life.

Turn off Wi-Fi and Bluetooth when not in use

~18s

If you are out and not using Wi-Fi or Bluetooth, turn them off. On both iPhone and Android, you can do this from the quick settings panel — swipe down from the top of the screen and tap the Wi-Fi or Bluetooth button to toggle them off.

Check which apps are draining your battery

~20s

iPhone: go to Settings > Battery and scroll down to see apps and their battery usage percentages. Android: go to Settings > Battery > Battery Usage. Delete or restrict background activity for any apps using an unusually high percentage.

Quick Tip

Social media apps like Facebook and Instagram are frequent battery hogs. Try restricting their background activity first.

Reduce background app refresh

~17s

This setting lets apps update in the background even when you are not using them — and it drains your battery. iPhone: Settings > General > Background App Refresh — turn it off entirely or set it to Wi-Fi only. Android: Settings > Apps > [app name] > Battery > Restricted.

Enable Low Power Mode or Battery Saver

~18s

iPhone: Settings > Battery > Low Power Mode. Android: Settings > Battery > Battery Saver. This reduces background activity and dims notifications to stretch your remaining battery. Most people only lose features they do not need.

Quick Tip

On iPhone you can also say "Siri, turn on Low Power Mode" to activate it hands-free.

Check your battery health (iPhone)

~18s

Go to Settings > Battery > Battery Health & Charging. If Maximum Capacity is below 80%, your battery has degraded and may need replacing. Apple charges a set fee for battery replacement at any Apple Store or authorized service provider.

Quick Tip

For Apple's complete battery guide, visit support.apple.com/en-us/108055. For Android battery tips, visit support.google.com/android/answer/7664358.

You Did It!

You've finished reading: Why Is My Phone Battery Dying So Fast? (And How to Fix It)

How well did this guide stick with you?

Need more help? Book a TekSure tech

Rate this guide

How helpful was this guide?

battery

iphone

android

tips

beginner

Official Resources

Apple Support — iPhone Google Help — Android Samsung Support

Sources used to create and verify this guide. View all sources →

← Previous

How to Block Spam and Nuisance Calls on iPhone

Getting Started with Siri on iPhone

Still stuck? Let a pro handle it.

A real person can walk you through this over the phone, anywhere in the US. If we can't fix it, you don't pay.

Book a Verified Tech How It Works

Learn more from official sources

Related Guides

How to Set Up a New iPhone

Got a new iPhone? This guide walks you through every step from turning it on to signing in with your Apple ID.

2 min read

How to Set Up a New Android Phone

A beginner-friendly walkthrough for setting up a new Android phone from scratch — including your Google account.

2 min read

How to Move Your Contacts to a New Phone

Don't lose your contacts when switching phones. Here's how to transfer them to iPhone or Android in minutes.

2 min read