For Samsung Galaxy A40 A405 Replacement Battery 3020mAh
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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
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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.
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The Repair Plus Samsung Galaxy A40 A405 replacement battery (3020mAh) is a brand new lithium-ion cell for the Galaxy A40 (SM-A405). It fixes short battery life, random shutdowns and slow charging, is made to OEM standard size and shipped the same day from Manchester when you order before 4pm, Monday to Friday.
Key features
- 3020mAh capacity: as listed for this Galaxy A40 replacement cell.
- OEM standard size: drops into the A40 battery bay without modification.
- Lithium-ion: with overcharge and overheating protection.
- Revives an older phone: cheaper than replacing the handset.
- Tested before dispatch: checked before it leaves our Manchester stock.
Specifications
| Part | Replacement battery |
|---|---|
| Compatible model(s) | Samsung Galaxy A40 (A405) |
| Capacity | 3020mAh |
| Type | Lithium-ion |
| Condition | Brand new |
| Quality | OEM standard |
| Dispatch | Same day before 4pm, Monday to Friday, from Manchester, UK |
| Returns | 30 days |
Compatibility
Fits the Samsung Galaxy A40 (A405). It does not fit the Galaxy A41, A50 or A40s. Look for the SM-A405 model number in Settings > About phone before you order.
How to fit a Galaxy A40 battery
Power the phone off and remove the back cover with gentle heat and a thin opening pick, as it is held on with adhesive. Take out the screws and midframe cover, disconnect the battery connector first, then lift the old battery slowly using isopropyl alcohol to soften the glue. Fit the new cell with fresh adhesive strips, reconnect, reassemble and reseal the back. Do not puncture or bend a lithium battery.
Why buy from The Repair Plus
- Order before 4pm, Monday to Friday, for same-day dispatch.
- Held in UK stock and shipped from Manchester.
- Each part is tested before it leaves us.
- 30-day returns on every order.
- Trusted by home repairers and repair shops across the UK.
Frequently asked questions
Will this battery fit the Galaxy A41?
No. The Galaxy A41 uses a different battery. This one is for the A40 A405.
Is a 3020mAh battery enough for daily use?
For typical calls, messaging and browsing, a fresh cell restores a full day on an A40 that has been struggling.
Why does my A40 turn off at 20 percent?
That is a classic sign of a worn battery that can no longer supply peak power. A new battery usually fixes it.
How soon will it arrive?
It is dispatched from Manchester the same day if you order before 4pm, Monday to Friday.
