If your Pixel 3a struggles on 5G, maps or camera use, the battery may be dropping voltage under load. A new battery often solves the early shut downs.
Common report: it feels warm during basic tasks and the battery drains quicker than expected.
Turnaround: Battery replacements are typically completed the same day. If you are in a hurry, ask about express turnaround.
Service options: London walk-in and UK mail-in.
Warranty: 6 months on batteries.
Back to Google Pixel 3a repairs
Book your Pixel 3a repair
Place your order online, then drop off your Pixel 3a when convenient. We will run checks, replace the battery, and confirm charging behaviour before return.
Why Square Repair
- Fast turnaround options
- Battery replacement does not affect your data
- Clean workmanship with dust control
- Post repair charging and power tests
- Friendly, practical advice
- Support if you notice any issues after collection
Common signs of battery wear for Pixel 3a
- Big overnight drain when the phone is idle
- Device shutting down in colder weather
- Battery health warnings or poor standby time
- Swollen battery signs (stop using it and get it checked)
- Sudden drops in percentage
Safety note: If you notice swelling, a lifted screen, or a bulge in the back cover, stop charging the phone and have it checked as soon as possible.
What happens during the repair
- Pre repair inspection and notes
- Careful disassembly and battery swap
- Reassembly with correct adhesives
Tip: If you charge overnight, keep the phone cool. Heat plus long time on charge is what tends to age batteries fastest.
Helpful links
Frequently Asked Questions
How do I know my Google Pixel 3a 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 long does a Google Pixel 3a battery replacement take?
Most Google Pixel 3a 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 Google Pixel 3a?
We fit a quality replacement battery matched to the Google Pixel 3a 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 Google Pixel 3a 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 Google Pixel 3a 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 Google Pixel 3a, 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 Google Pixel 3a screen repair.
What warranty is included?
Every Google Pixel 3a 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 Google Pixel 3a charging port repair and we will help.