Can You Replace the Battery replacement Samsung Galaxy S9?
When your Samsung Galaxy S9 starts losing its charge quickly, freezing unexpectedly, or switching off at random, it’s a clear sign something’s gone wrong internally. One of the most common solutions? A battery replacement Samsung Galaxy S9—a straightforward fix that can dramatically improve performance and battery life.
But is it really worth it in 2025? Is it a DIY job or something best left to the professionals? In this blog, we at Repair My Crack break down everything you need to know about battery replacements for the Samsung Galaxy S9—from the warning signs to the safest repair options.
Why Do Samsung Galaxy S9 Batteries Deteriorate?
Over time, all lithium-ion batteries begin to degrade. They’re built to handle hundreds of charge cycles, but with each one, their ability to hold a charge drops. After a few years—especially if the phone is used heavily—the battery will no longer perform like it once did.
Your Galaxy S9 might:
Drain within a few hours of full charge
Shut down unexpectedly
Struggle to charge properly
Overheat during light use
Swell or lift the back casing
All of these are common symptoms that indicate it’s time for a battery replacement Samsung Galaxy S9.
How to Tell if You Need a New Battery
Not every battery failure is obvious. Here are key signs your Galaxy S9 might need attention:
1. The Phone Dies Early
You could have 20% battery left, and suddenly—black screen. If this happens regularly, your battery health is likely poor.
2. The Battery Drains Too Fast
From 100% to 40% in under two hours? That’s not normal. If the phone barely lasts through the day, you should consider a battery replacement Samsung Galaxy S9.
3. Slow or Inconsistent Charging
Is your S9 taking forever to charge? Or perhaps the percentage jumps around oddly? These are red flags.
4. Device Overheats
A failing battery often generates more heat, even with minimal use.
5. Battery Health Stats (Using Apps)
Apps like AccuBattery or Samsung Members can give you insights into the battery’s health. If capacity has dropped significantly, a replacement is worth it.
Can You Replace the Battery Yourself?
Technically yes—but practically, it’s a different story.
The Galaxy S9 has a sealed, waterproof design, which makes repairs tricky. You’ll need special tools, a steady hand, and patience. It’s rated as a moderately difficult repair on iFixit and can take up to two hours if you’re unfamiliar.
You’ll need:
Heat gun or iOpener
Precision screwdriver set
Spudgers and suction tools
Replacement battery
High-quality adhesive strips
Unless you’re confident and experienced, we recommend steering clear of DIY. One wrong move could damage internal components—or worse, puncture the battery.
That’s why many users prefer a professional battery replacement Samsung Galaxy S9—done safely, correctly, and without stress.
DIY Risks to Be Aware Of
Screen damage: Too much heat or pressure can crack the screen.
Ribbon cables: Easy to snap and hard to reattach if you’re not careful.
Waterproofing loss: Once opened, your phone loses its IP68 rating unless resealed properly.
Battery fire risk: Damaged lithium-ion batteries are dangerous if pierced.
If you’re unsure, it’s worth booking a battery replacement Samsung Galaxy S9 with a professional service like ours at Repair My Crack.
What’s Involved in a Professional Battery Replacement?
We make the process hassle-free. When you bring your phone to us (or post it in), we follow a thorough and safe process:
Initial Diagnostics
We first make sure the battery is the actual issue. Sometimes, problems are caused by charging ports or system errors.Safe Opening
Using a heat mat and specialised tools, we carefully loosen the back panel without cracking it or damaging sensors.Battery Removal
The old battery is delicately removed using spudgers and prying tools.New Battery Installation
We fit a high-quality replacement battery and secure it with proper adhesive.Reassembly & Cleaning
The device is sealed back up, tested, and wiped down—inside and out.Final Testing
We don’t just install the battery—we make sure the phone is working flawlessly before handing it back.
All battery replacement Samsung Galaxy S9 services come with a warranty for your peace of mind.
How Much Does It Cost?
Prices can vary, but here’s a rough guide in the UK:
| Provider | Cost Estimate |
|---|---|
| Samsung (official repair) | £109 |
| Repair My Crack | From £45 |
| Local high street shops | £40 – £70 |
With Repair My Crack, we offer in-person and mail-in repair services across the UK. If you’re not local, simply book online, post your device to us securely, and we’ll send it back fully repaired.
That’s quality service at nearly half the price of Samsung—without sacrificing professionalism.
How Long Does the New Battery Last?
Once fitted, your new battery should offer excellent performance:
Around 15–20 hours of normal use
Over 2 days standby time
Quick charging speeds (especially if using the original Samsung charger)
With proper care, you won’t need another battery replacement Samsung Galaxy S9 for at least 2–3 more years.
Tips for Preserving Battery Health After Replacement
After your repair, use these tips to keep your new battery in top condition:
Avoid 0% and 100% extremes – try to keep your charge between 20–80%.
Turn on Battery Saver Mode when you’re not using power-heavy features.
Limit background apps – especially GPS and video streaming apps.
Use original or certified charging cables to prevent damage.
Keep it cool – avoid leaving the phone in hot cars or in direct sunlight.
All these habits will help prolong the life of your battery replacement Samsung Galaxy S9.
Is It Still Worth Replacing a Galaxy S9 Battery in 2025?
Absolutely—and here’s why:
Pros of Replacing:
Save money – a £45 fix is much cheaper than a new £900+ phone.
Keep your data – no need to transfer files or reinstall apps.
Eco-friendly – reusing a phone is better for the planet.
Performance boost – a new battery often feels like a brand-new phone.
When You Might Upgrade Instead:
If your screen is also damaged.
If you need 5G or newer software features.
If the phone is already running slow, even after resets.
But if your S9 still meets your needs, a battery replacement Samsung Galaxy S9 is a no-brainer.
Customer Testimonial
“I thought my Galaxy S9 was done for—it wouldn’t even last two hours without dying. Repair My Crack swapped the battery in under an hour and now it’s like new again. I saved over £800 by not buying a new phone!”
— Shannon P., Bolton
We’ve helped thousands of customers revive their old phones with a simple, cost-effective battery replacement.
Summary: What You Need to Know
Yes, the Galaxy S9 battery can be replaced.
DIY is possible, but risky and not recommended unless you know what you’re doing.
A professional battery replacement Samsung Galaxy S9 is affordable, quick, and safe.
With a new battery, your phone can last another 2–3 years.
We offer in-store and UK-wide mail-in repair services.
Ready to Book Your Battery Replacement?
Don’t let poor battery life ruin your day. Whether you’re in the North West or anywhere else in the UK, Repair My Crack can help. We specialise in fast, affordable smartphone repairs—including battery replacement Samsung Galaxy S9 services using quality-tested components.
📍 Visit us in person or
📦 Use our reliable mail-in repair service—just book online.
Let us bring your Galaxy S9 back to life—without breaking the bank.