A fast-draining battery is one of the most common problems smartphone users face today. Whether you own an iPhone, Samsung, or any other Android device, battery health naturally declines over time. But how do you know when it’s really time to replace your phone battery—rather than just tweak a few settings?
At Mobile World Eccles, our certified technicians repair and replace phone batteries daily, and we’ve put together this simple guide to help you know exactly when a battery replacement is the best solution.
Why Phone Batteries Wear Out
Most smartphones use lithium-ion batteries. These are powerful but degrade after a certain number of charge cycles (usually around 500–800). Over time, this leads to:
- Shorter battery life
- Increased heat
- Sudden shutdowns
- Slower performance
It’s normal—but extremely frustrating for users.
Signs You Need a Battery Replacement
If your battery is draining quicker than it used to, here’s what to look out for:
1. Your Phone Dies Randomly (Even With Battery Left)
If your device shuts off at 20% or 30%, it’s a clear sign that the battery can no longer hold charge consistently.
2. The Phone Gets Hot Easily
Excessive heat during everyday use or minor tasks means the battery is overworking.
3. Your Battery Health Is Below 80%
On iPhones, you can check this under Settings → Battery → Battery Health.
Under 80%? Time for a new battery.
Android devices don’t all show health percentage, but similar symptoms indicate decline.
4. The Phone Charges Extremely Slowly
If your charging time suddenly doubles—even with a good cable and charger—the battery may be failing internally.
5. You Need to Charge More Than Twice a Day
If your usage hasn’t changed, but your phone can’t last a normal day, a replacement is the easiest fix.
6. The Phone Swells or the Back Housing Lifts
A swollen battery is an emergency. Stop using the phone immediately and bring it in for repair.
Can You Fix It Without Replacing the Battery?
Sometimes! Try these first:
- Reduce screen brightness
- Turn off Bluetooth & Wi-Fi when not needed
- Disable background app refresh
- Update your phone’s software
- Restart the device regularly
If these don’t help, the battery is likely worn out.
Why Professional Battery Replacement Is Better Than DIY
Replacing a phone battery is delicate work. DIY kits often include cheap batteries that:
- Overheat
- Swell
- Don’t last long
- Can even damage your motherboard
At Mobile World Eccles, we use genuine OEM batteries and professional tools so the job is safe, quick, and reliable.
Battery Replacement at Mobile World Eccles (Manchester)
If you’re experiencing battery issues, we can help with:
- iPhone battery replacements
- Samsung and other Android battery repairs
- Same-day service for most models
- Affordable pricing & warranty
Our technicians diagnose the issue on the spot and replace your battery safely and correctly, restoring your phone’s performance.
Final Thoughts
If your battery drains fast, heats up, or causes random shutdowns, it’s likely past its lifespan. Replacing the battery is one of the fastest and most affordable ways to bring your phone back to life.
Need a repair?
Visit Mobile World Eccles today for a quick, professional battery replacement you can rely on.
Frequently Asked Questions
1. Why is my phone battery draining so fast?
Batteries naturally degrade with age, but fast draining can also be caused by background apps, outdated software, excessive brightness, or a faulty battery. If the issue continues after adjusting settings, it’s likely time for a replacement.
2. How do I know if my iPhone battery needs replacing?
You can check your iPhone’s battery health under Settings → Battery → Battery Health. If it’s below 80%, or your phone is shutting down unexpectedly, a replacement is recommended.
3. How long does a battery replacement take?
At Mobile World Eccles, most phone battery replacements take 30–60 minutes, depending on the model.
4. Will a new battery make my phone faster?
Yes, in many cases. Both iPhones and Android devices may throttle performance when the battery is weak. A new battery can improve speed, responsiveness, and overall performance.
5. Does replacing my phone battery delete my data?
No. A battery replacement doesn’t affect the phone’s storage or data. However, we always recommend backing up your device before any repair—just to be safe.
6. How long should a phone battery last?
Most lithium-ion batteries last 2–3 years or 500–800 charge cycles. Heavy usage, extreme heat, and fast charging can shorten lifespan.
7. Why does my phone get hot when charging?
A failing battery, faulty cable, or background apps may cause overheating. If your phone gets hot even with a good charger, the battery may be degraded.
8. Are OEM batteries better than cheap replacements?
Absolutely. OEM (original equipment manufacturer) batteries offer better performance, safety, and lifespan. Cheap third-party batteries often fail sooner and can even damage your phone.
9. Can I replace the battery myself?
DIY battery replacements are risky—you can damage the screen, connectors, or battery. Professional replacement ensures safety and long-term reliability.
10. Do you offer a warranty on battery replacements?
Yes, Mobile World Eccles provides a warranty on all battery replacements. Coverage depends on the device model—just ask our team for details.
11. Can a swollen battery be repaired?
No. A swollen battery must be replaced immediately. Stop using the device and bring it to a technician as soon as possible.
12. What phones do you replace batteries for?
We repair and replace batteries for:
- iPhones
- Samsung phones
- Huawei, Google Pixel, OnePlus
- Other Android models