Signs you need to replace your Android phone battery

💡 Need to know

• Batteries wear out naturally. Most Android phone batteries start showing their age after a few years of regular use.
• Fast drain isn't always the battery. Apps, settings, and software updates can also affect battery life.
• Swelling is a red flag. If your phone is bulging or the screen is lifting, stop using it and get it checked immediately.
• A battery replacement can add years to a phone's life. If the rest of the device works well, replacing the battery is often much less expensive than buying a new phone.

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It usually starts with a small annoyance. Your Android™ phone needs a midday charge. Then it starts dropping from 30% to 10% without warning. Before long, you're carrying a charger everywhere you go.

If that sounds familiar, your battery may be trying to tell you something.

Android phone batteries don't last forever, but replacing them can often give a device a second life. Asurion Experts help people diagnose battery issues every day, and there are a few clear signs that a battery—not the phone itself—is the problem.

How long does an Android phone battery last?

Most Android phone batteries are designed to last about two to three years of regular use, though some last longer depending on how the phone is used and cared for.

Over time, every battery loses some of its ability to hold a charge. That's normal. Heat, frequent charging, and heavy usage can speed up the process.

Signs your phone battery needs to be replaced

A battery rarely fails all at once. Most of the time, it gives you warning signs first.

Your battery drains unusually fast

If your phone used to make it through the day but now needs multiple charges, battery wear may be the cause.

Your phone shuts down unexpectedly

Does your phone power off at 20% or 30% battery? That's often a sign the battery can no longer accurately report or maintain its charge.

The battery percentage jumps around

If your battery suddenly drops from 50% to 15% or jumps upward after plugging it in, the battery may be struggling.

Your phone gets unusually hot

Some warmth during charging is normal. Excessive heat during everyday use or charging can indicate battery problems.

The battery is swelling

This is one sign you should never ignore. If the back of the phone is bulging, the screen is separating from the frame, or the device no longer sits flat on a table, stop using it and have it evaluated immediately—you’re likely dealing with a swollen battery.

Charging takes longer than it used to

If your phone charges noticeably slower than it once did—even with a good charger and cable—the battery may be nearing the end of its lifespan.

How to check your Android phone battery health

Not every Android phone displays battery health the same way, but there are a few places you can look.

Samsung Galaxy phones

Samsung includes battery information under Settings > Battery > Battery information. You can also check battery usage and identify apps consuming excessive power.

Google Pixel phones

Pixel phones provide battery usage details under Settings > Battery > Battery usage. This won't always show a dedicated battery health percentage, but it can help identify unusual battery behavior.

How to conserve battery on your Android phone

If your battery isn't ready for replacement yet, a few simple changes can help you get more life out of each charge.

Lower screen brightness

Your display is one of the biggest battery users. Reducing brightness can make a noticeable difference.

Turn on Battery Saver

Most Android phones include a Battery Saver mode that limits background activity and extends battery life.

Delete unused apps

If an app you don't use is a power hog, you can delete it with the Google Play Store app. Here's how:

1. Open the Google Play Store app and tap your Profile icon at the top right.
2. Tap Manage apps & devices, then select the Manage tab.
   1. 💡 Pro Tip: Tap the Recently updated filter and change it to Least used. This instantly shows you which apps are just taking up space and battery.
3. Check the box next to the app(s) you want to remove and tap the Trash icon (Uninstall) at the top right.

Limit background apps

If other apps—especially social media ones like TikTok® and Instagram® —are set to run in the background, they'll constantly check for updates and refresh, even after you've closed them, which can drain your battery. Here's what to do:On Samsung devices:

1. Go to Settings > Battery > Background usage limits.
2. Tap Deep sleeping apps. These apps will never run in the background, saving the most power.
3. Tap the + icon at the top right to add power-hungry apps to this list.

On Pixel and other Android devices:

1. Go to Settings > Apps > See all apps.
2. Tap the specific app you want to limit, then tap App battery usage.
3. Select Restricted. This prevents the app from using battery in the background, though it may delay your notifications for that app.

Turn off features you don't need

Bluetooth, GPS, hotspot connections, and other features consume power when left on unnecessarily.

Avoid excessive heat

Heat is one of the biggest enemies of battery health. Try not to leave your phone in direct sunlight, a hot car, or other high-temperature environments.

These tips can help extend battery life, but they won't reverse battery wear. If your battery is already struggling, a replacement may be the more effective long-term solution.