Samsung Galaxy A21 OEM Standard Replacement Battery Premium Quality
Hurry up, only 10 items left in stock.
Discount applies at checkout on any mix of parts — ideal for repair shops.
Estimated delivery · Royal Mail Tracked 482–3 working days
- Order placedToday
- DispatchedSame day
- At your door2–3 days
Tap a service to see its arrival date. Choose your service at checkout.
Phone parts are delicate. We recommend fitting by a qualified repair technician — damage caused during fitting is not a product fault. Need help choosing the right part? Call 07425 443625 or email info@therepairplus.com (Mon–Fri 10:00–18:00). Repair shop? Open a trade account.
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
The Repair Plus replacement battery for Samsung Galaxy A21 is a brand new lithium-ion internal battery for the Samsung Galaxy A21 that fixes fast draining, overheating and random shutdowns. Made to OEM standard with built-in safety protection, it is shipped the same day from Manchester when you order before 4pm, Monday to Friday.
Key features
- Made for the Galaxy A21: sized for the A21 battery compartment and connector.
- Lithium-ion cells: steady power delivery for calls, apps and streaming.
- Three layers of protection: guards against overcharging, overheating and short circuits.
- Precise fit: a simple swap for anyone with basic phone repair tools.
- Extends phone life: gets more use out of your A21 without buying a new handset.
Specifications
| Part | Replacement internal battery |
|---|---|
| Battery type | Lithium-ion |
| Compatible model | Samsung Galaxy A21 |
| Condition | Brand new |
| Quality | OEM standard |
| Dispatch | Same day before 4pm, Monday to Friday, from Manchester, UK |
| Returns | 30 days |
Compatibility
This battery fits the Samsung Galaxy A21 only. It is not for the Galaxy A21s, Galaxy A20 or Galaxy A22, which have different batteries despite similar names. Check your model in Settings > About phone before you order.
What you need to fit a phone battery
- Power the phone off and let it cool before you start.
- Use gentle heat and a thin pry tool or opening pick to lift the rear panel.
- Remove any shields and disconnect the battery connector before you touch anything else.
- Ease the old battery out slowly using plastic tools only. Never pierce or bend a swollen cell.
- Fit new adhesive strips, connect the new battery, test it, then reseal the back with fresh adhesive.
Why buy from The Repair Plus
- Same-day dispatch when you order before 4pm, Monday to Friday.
- UK stock, shipped from Manchester.
- Every part tested before dispatch.
- 30-day returns.
- Trusted by DIY repairers and independent repair shops.
Frequently asked questions
Does the Galaxy A21 battery fit the Galaxy A21s?
No. The A21 and A21s are different phones with different batteries. This listing is for the Galaxy A21.
Is this battery safe to use?
Yes. It is brand new and has protection against overcharging, overheating and short circuits.
How long does a Galaxy A21 battery swap take?
Most people with basic tools finish in 30 to 60 minutes. Take your time lifting the back cover to avoid cracking it.
Where do you ship from?
All orders ship from our UK warehouse in Manchester, the same day if placed before 4pm on a weekday.
