Xperia XZ3 Battery Replacement
A worn battery can make your Xperia XZ3 feel unreliable. We can fit a replacement battery and check charging behaviour after installation.
- Turnaround: Same-day where possible. Typical time is 60 to 90 minutes once checked in.
- Warranty: 6-month warranty on battery replacements.
- Service options: Walk-in welcome near Liverpool Street, or use our UK mail-in option.
Next step: select the service and check out, or book diagnosis if you want us to confirm the fault first.
If you’re seeing any of these symptoms
- Overheating during normal use or charging
- Charge percentage stuck or jumps around
- Phone charges slowly or will not charge fully
- Device feels sluggish due to battery health
- Battery warnings shown in settings
- Battery drops rapidly from mid charge
- Phone restarts randomly during use
- Battery drains quickly even on light use
Why choose Square Repair?
- Repairs carried out with a focus on reliability since 2015
- We test key functions, not just the original fault
- No unnecessary upsells, just honest guidance
- Easy access near Liverpool Street
- Mail-in repairs available, see how we work
- Warranty information is on our guarantee page
What this repair includes
- After-care guidance for better battery life
- Replacement battery fitted for your model
- Safe adhesive removal and reseal where applicable
- Checks for charging stability and thermal behaviour
- Basic clean-up during reassembly
Our repair process
- 1. Select the service and check out, or start with diagnosis if needed.
- 2. Bring it in or send it to us using how we work.
- 3. We complete the work with careful fitting and attention to connectors and seals.
- 4. We test key functions and confirm everything is working as expected.
- 5. Collect or return shipping after testing. Warranty info: our guarantee page.
How to verify your exact device model
- In Settings, select About phone.
- Compare the model details to this page.
- If unsure, book diagnosis first.
Related repairs
Get started today
Prefer mail-in? Follow how we work. Walk-ins near Liverpool Street are also welcome.
Frequently Asked Questions
What are the signs the Xperia XZ3 battery needs replacing?
The usual signs are a battery that drains far faster than it used to, unexpected shutdowns even when there is charge left, and the device only running reliably while plugged in. You may also see sudden percentage drops, the device running warm, or slow charging. Your device's battery or device-care settings will often show declining capacity. If the back or screen is lifting, treat it as urgent, as that can mean the battery has swollen.
Check current turnaround and reserve a slot on our booking page.
How long does a Xperia XZ3 battery replacement take?
Most Xperia XZ3 battery replacements are completed the same day when the part is in stock, often within a couple of hours of dropping in near Liverpool Street Station in London. We inspect the device first and confirm the timeframe before starting any work. Mail-in customers can post the device from anywhere in the UK and we turn it around as quickly as the post allows.
Not sure? It is worth booking a quick diagnosis first.
What battery do you fit in the Xperia XZ3?
We fit a quality replacement battery matched to the Xperia XZ3 and test charging, power stability and capacity before return. Replacing the battery restores the runtime the device had when it was newer and resolves shutdowns caused by a worn cell. Every battery replacement carries a 6-month warranty.
See exactly how we work on our how we work page.
Will my data be wiped when the battery is replaced?
No. A Xperia XZ3 battery replacement is a hardware-only repair, so your photos, apps and settings stay exactly as they are. We still recommend a recent backup beforehand as good practice, in case the device has damage beyond the battery. Nothing about the battery procedure touches your storage.
Browse all Xperia XZ3 repairs while you decide.
Is a swollen or bulging battery dangerous?
A swollen battery is a safety issue and should be dealt with promptly. Stop charging the Xperia XZ3, avoid pressing on the bulge, and arrange a replacement as soon as you can. Swelling can lift the screen or back panel and, left too long, can damage nearby parts. Bring it in or post it to us and we will replace the battery and check the surrounding components.
It is also worth checking your Xperia XZ3 screen repair.
What warranty is included?
Every Xperia XZ3 battery replacement includes a 6-month warranty, which covers the replacement battery and our fitting. If a warranty-covered fault appears within that period, we put it right at no extra cost. The warranty does not cover fresh liquid exposure or new accidental damage, which we always explain before you book.
Still unsure? get in touch, or explore Xperia XZ3 charging port repair and we will help.