Galaxy S25 battery draining: Common Causes & Fixes

Galaxy S25 battery draining: Common Causes & Fixes

Galaxy S25 battery draining: Common Causes & Fixes. If your Galaxy S25 battery draining faster than expected, you’re not alone. Many users notice battery drop within months of daily use. However, the good news is that most battery issues don’t mean your phone is faulty. In fact, small settings, background apps, or charging habits often cause the problem.

At Phone Repairs Wollongong, we regularly help customers fix Samsung battery issues quickly and affordably. Therefore, before you panic or rush to replace your phone, it’s worth understanding what may be happening behind the scenes.

In this guide, we break down the common causes of Galaxy S25 battery drain and explain practical fixes you can try today.

Why Is My Galaxy S25 Battery Draining So Fast?

Although the Samsung Galaxy S25 features advanced battery optimisation, heavy usage and background processes still affect performance. Moreover, software updates and app behaviour can change battery consumption patterns.

Let’s look at the most common causes first.

1. Background Apps Running Constantly

Many apps continue running even after you close them. For instance, social media, fitness trackers, and messaging apps refresh data in the background.

As a result, your phone keeps using power even when you’re not actively using it.

Fix:

  • Go to Settings → Battery → Background usage limits

  • Restrict unnecessary apps

  • Enable adaptive battery settings

Additionally, uninstall apps you rarely use. The fewer apps running, the better your battery life.

2. High Screen Brightness and Display Settings

Your display consumes more battery than almost any other component. Although the Galaxy S25 screen looks stunning, high brightness drains power quickly.

Furthermore, features like always-on display and high refresh rate increase consumption.

Fix:

  • Lower screen brightness

  • Enable adaptive brightness

  • Switch from 120Hz to standard refresh rate if needed

  • Turn off always-on display

Even small adjustments here can significantly improve Galaxy S25 battery life.

3. 5G and Poor Network Signal

Although 5G offers faster speeds, it uses more battery compared to 4G. Moreover, when your phone struggles to find signal, it works harder, which drains power faster.

This often happens indoors or in low coverage areas around Wollongong.

Fix:

  • Switch to 4G if 5G isn’t necessary

  • Turn on Airplane Mode in weak signal areas

  • Use Wi-Fi when available

Stable connectivity reduces battery stress immediately.

4. Software Bugs After Updates

After a system update, temporary battery drain often occurs. This happens because the phone re-indexes files and optimises apps.

However, if battery drain continues for more than a few days, something else may be wrong.

Fix:

  • Restart your device

  • Check for another software patch

  • Clear cache partition

  • Reset app preferences

If problems continue, visit Phone Repairs Wollongong for a diagnostic check.

5. Battery Age and Health Decline

Over time, lithium-ion batteries naturally degrade. Even if you care for your device properly, chemical ageing reduces capacity.

Therefore, if your Galaxy S25 struggles to last half a day, battery wear could be the cause.

Signs You Need a Battery Replacement:

  • Sudden shutdown at 20–30%

  • Overheating

  • Swollen battery

  • Rapid percentage drops

In these cases, professional Samsung battery replacement may restore performance completely.

6. Excessive Notifications and Syncing

Emails, cloud backups, photo syncing, and constant notifications quietly drain battery.

Although each alert uses minimal power, combined activity adds up quickly.

Fix:

  • Disable auto-sync for unused accounts

  • Turn off unnecessary notifications

  • Adjust email fetch frequency

You’ll likely notice improvement within a day.

7. Location Services Always On

GPS tracking for maps, ride-share, and weather apps constantly uses power.

Even when you’re not navigating, some apps request location access.

Fix:

  • Switch location access to “While using the app”

  • Turn off location history

  • Disable Bluetooth scanning

This step alone can reduce Samsung Galaxy S25 battery drain significantly.

8. Overheating Issues

Heat damages battery efficiency. If your phone feels hot during gaming, charging, or streaming, battery drain increases.

Moreover, charging under a pillow or in direct sunlight worsens the issue.

Fix:

  • Avoid using the phone while charging

  • Remove thick cases during gaming

  • Keep device in cool environments

If overheating persists, seek professional repair immediately.

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9. Fast Charging Habits

Fast charging is convenient. However, frequent rapid charging may increase battery stress over time.

Although Samsung designs devices to handle it, moderation helps extend battery lifespan.

Fix:

  • Use original Samsung charger

  • Avoid overnight charging daily

  • Keep battery between 20% and 80% when possible

Balanced charging improves long-term battery health.

10. Malware or Suspicious Apps

Although rare, malicious apps can drain battery aggressively.

If you notice unexplained data usage or ads, investigate immediately.

Fix:

  • Boot into Safe Mode

  • Scan using Samsung security features

  • Remove unknown apps

If unsure, bring your phone to Phone Repairs Wollongong for a full system check.

When Should You Visit a Repair Expert?

While many fixes are simple, hardware faults require professional tools. For instance, damaged charging ports, motherboard faults, or battery swelling need immediate attention.

At Phone Repairs Wollongong, we perform:

  • Battery diagnostics

  • Genuine battery replacement

  • Charging port repairs

  • Software troubleshooting

Therefore, instead of guessing, you can get clear answers and fast solutions.

Tips to Improve Galaxy S25 Battery Life Daily

To keep your phone lasting longer, follow these everyday habits:

  • Reduce screen timeout

  • Use dark mode

  • Disable vibration for typing

  • Keep apps updated

  • Restart weekly

  • Avoid extreme temperatures

Although each tip seems minor, together they create noticeable improvement.

Conclusion

The Galaxy S25 battery draining issue usually connects to settings, usage habits, or ageing components. Fortunately, most problems have straightforward fixes.

However, if your phone still struggles despite adjustments, a professional inspection can save time and money.

At Phone Repairs Wollongong, we specialise in diagnosing and fixing Samsung battery issues quickly. Whether you need optimisation advice or full battery replacement, our experienced technicians are ready to help.

Don’t let poor battery life disrupt your day. Instead, take action early and keep your Galaxy S25 performing at its best.

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