Sony Xperia 5 II Battery Replacement
A worn battery can make your Sony Xperia 5 II feel unreliable. We can fit a replacement battery and check charging behaviour after installation.
- Turnaround: Most repairs are completed the same day where possible, around 60 to 90 minutes.
- Warranty: 6-month warranty on battery replacements.
- Service options: Walk-in welcome near Liverpool Street, or use our UK mail-in option.
Next step: choose this repair to book in, or use diagnosis first if the fault is unclear.
If you’re seeing any of these symptoms
- Swollen battery causing the screen to lift
- 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
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
- Checks for charging stability and thermal behaviour
- Basic clean-up during reassembly
- After-care guidance for better battery life
- Replacement battery fitted for your model
- Safe adhesive removal and reseal where applicable
Our repair process
- 1. Choose this repair, or book diagnosis if you want the fault confirmed first.
- 2. Walk in, or follow how we work for UK mail-in repairs.
- 3. We carry out the repair and replace any required seals where applicable.
- 4. We run checks for reliability, not just the original symptom.
- 5. Pick up or receive it back by post. Warranty terms are on our guarantee page.
How to verify your exact device model
- Open Settings and then About phone.
- Check the model details.
- Book the matching repair option for the best fit.
Related repairs
Get started today
For the fastest service, walk in near Liverpool Street. If you are outside the area, use how we work to send it in.
Frequently Asked Questions
How do I know my Sony Xperia 5 II needs a new battery?
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 quickly can you replace the Sony Xperia 5 II battery?
Most Sony Xperia 5 II 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 quality of battery do you use for the Sony Xperia 5 II?
We fit a quality replacement battery matched to the Sony Xperia 5 II 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.
Do I lose my data during a battery replacement?
No. A Sony Xperia 5 II 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 Sony Xperia 5 II repairs while you decide.
My battery looks swollen, what should I do?
A swollen battery is a safety issue and should be dealt with promptly. Stop charging the Sony Xperia 5 II, 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 Sony Xperia 5 II screen repair.
What warranty is included?
Every Sony Xperia 5 II 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 and we will help.