OnePlus 15 Battery Replacement
If your OnePlus 15 battery drains quickly, fails to hold charge, or you notice the screen lifting, Square Repair can replace it. Near Liverpool Street Station, London.
- Turnaround: Same day where possible, subject to stock
- 6-month warranty on the replacement battery
- Walk-in near Liverpool Street or UK mail-in
Signs your OnePlus 15 battery may need replacing
- Battery draining significantly faster than it used to
- Device shutting down unexpectedly at lower charge percentages
- Only reliable when connected to power throughout the day
- Screen lifting slightly, which can indicate a swollen battery
What is included
- Safe removal of the existing battery and fitting of the replacement
- Post-repair charging stability and full function test
- 6-month warranty on the replacement battery
Related OnePlus 15 repairs
Book your repair
Walk-ins welcome near Liverpool Street Station. Mail-in: book online. Questions? Contact us.
Frequently Asked Questions
What are the signs the OnePlus 15 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 quickly can you replace the OnePlus 15 battery?
Most OnePlus 15 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 OnePlus 15?
We fit a quality replacement battery matched to the OnePlus 15 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 OnePlus 15 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 OnePlus 15 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 OnePlus 15, 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 OnePlus 15 screen repair.
What warranty comes with the OnePlus 15 battery replacement?
Every OnePlus 15 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 OnePlus 15 charging port repair and we will help.