Samsung Galaxy A40 Battery Replacement Vienna
Your Galaxy A40 no longer lasts a full workday, shuts down unexpectedly at 30 % or gets hot while charging? Reparo replaces the 3100-mAh battery in Vienna – €55 fixed price with a certified battery cell, 6 months warranty. 15W fast charging stays intact. Usually done in 60–90 minutes, pickup service in Vienna or send-in.
Galaxy A40 battery prices at a glance
Battery replacement
Fixed price, fitting included
- Certified Li-polymer battery cell
- Nominal voltage 3.85 V, original capacity
- Battery-health calibration after fitting
- Fast-charge compatibility fully retained
- 6 months warranty on cell and fitting
Diagnostic check without repair 25 EUR (waived on repair). Pickup service Vienna included.
Typical battery problems on the Galaxy A40
- The Galaxy A40 no longer lasts a workday – you used to easily reach 5–7 hours of screen time
- The device shuts down suddenly at 20–30 % remaining charge and only turns back on once plugged in
- The 3100-mAh battery gets noticeably hot while charging or during 15W fast charging
- The battery percentage jumps in large steps (60 % → 20 %) – calibration is lost
- The back panel bulges around the battery area – visible swelling (a deep-discharge consequence)
- The device no longer starts after fully draining – the battery is deep-discharged
The Galaxy A40 launched in 2019 with a 3100 mAh compact battery (the smallest A40). An ignored fault quickly leads to follow-up damage – see the Galaxy A40 repair overview for all options.
How does the Galaxy A40 battery replacement work?
- Battery diagnosis
The Samsung service code *#0228# shows voltage, temperature and cycle count. Capacity below 80 % or more than 500 cycles justifies the replacement.
- Open the back or display
On the Galaxy A40 the battery sits behind the back panel on older A models. We heat the adhesive layer to 70 °C and release it gently.
- Remove the old battery
The 3100-mAh cell is fixed to the plastic frame with pull tabs. We dissolve the adhesive with isopropanol 99, never with a screwdriver pry.
- Fit a certified 3100-mAh cell
Same nominal voltage (3.85 V), same capacity, same form factor. Connector onto the mainboard, adhesive on the frame, contact pressure controlled.
- Resealing
The frame is closed with fresh adhesive. The Galaxy A40 has no factory IP protection – but dust and splash resistance is restored.
- Full charge + calibration
First charge at 25 °C to 100 %, then a full discharge and recharge. The battery gauge is calibrated to the new cell.
Reparo works without customer access – your Galaxy A40 is collected by courier in Vienna or sent in insured (hazmat-compliant shipping box).
Replace the Galaxy A40 battery – price, process and battery lifespan in Vienna
The 3100-mAh battery in the Galaxy A40 lasts 500 to 700 full cycles with normal use – that usually equals 2 to 3 years of everyday use. After that the usable capacity drops below 80 %, which you notice as battery shutdowns at 20–30 %, a hot case while charging or a bulging part of the housing. Our Galaxy A41 shows similar ageing patterns, but the battery cells and prices differ.
Reparo replaces the Galaxy A40 battery in Vienna for a €55 fixed price – that is about 18 % of the original launch price (€300). Included are certified 3100-mAh cells, calibration and 6 months warranty. If you also have display problems: see the A40 screen replacement.
Certified cell vs. Samsung original – what goes into the Galaxy A40?
For the Galaxy A40 we fit certified 3100-mAh battery cells that match the original Samsung specifications: 3.85 V, the same charge curve. Original Samsung service packs are only available through Samsung service centres – our aftermarket cells last measurably the same. Price comparison of all battery repairs: Samsung overview.
Frequently asked questions about the Galaxy A40 battery replacement
Samsung A40 battery replacement – what does it cost in Vienna?
A Samsung A40 battery replacement costs €55 fixed price at Reparo in Vienna with a certified 3100-mAh battery cell, calibration and 6 months warranty. The 25 EUR diagnostic check is waived on repair.
What does the battery replacement cost on the Galaxy A40?
The Galaxy A40 battery replacement costs €55 fixed price at Reparo in Vienna. Included: certified 3100-mAh battery cell, calibration, 6 months warranty. The 25 EUR diagnostic check is waived on repair.
How long does the new Galaxy A40 battery last?
The replacement battery lasts 500 full cycles with at least 80 % capacity – about 2.5 to 3.5 years of everyday use. One full cycle = a complete discharge from 100 % to 0 %.
Is the 3100-mAh battery in the Galaxy A40 a standard replacement or original?
We fit certified 3100-mAh battery cells with original Samsung specifications: the same 3.85 V, the same capacity, the same charge curve. Original Samsung service packs are only available through Samsung service centres and are not obtainable for independent workshops.
Does the Galaxy A40 charge just as fast with 15W after the battery replacement?
Yes. The Galaxy A40 supports 15W charging via USB-PD – the logic sits on the mainboard and is not touched. Same charge times as from the factory.
Does the Galaxy A40 have wireless charging?
No, the Galaxy A40 has no wireless charging by design – Samsung omits the Qi coil on the A series to optimise price and weight. Charging is exclusively via USB-C at up to 15W.
Does the Galaxy A40 have water protection?
No, the Galaxy A40 has no factory IP rating. During the battery replacement we seal the housing with fresh adhesive against dust and splash water – avoid active submersion.
Will the display be damaged during the Galaxy A40 battery replacement?
No, not with us. On Galaxy A40 units with the battery under the display we heat the adhesive layer temperature-controlled and release it without bending or pressure. If the adhesive strip tears, we renew it free of charge.
Can I bring my Galaxy A40 directly to Reparo?
Reparo has no on-site customer access. You book online and our courier comes to all 23 Vienna districts. From the federal states you send it in insured.
How does the pickup service in Vienna work for the Galaxy A40 battery replacement?
Book online, choose a time slot (9 am–6 pm), the courier drives to your Vienna address. Battery replacement 60–90 min in the studio, return often the same day. Courier included in the €55 fixed price.
Is shipping from the federal states safe for a Galaxy A40 battery?
Yes. Battery shipping falls under hazmat class 9 – we send a special UN-approved shipping box. The Galaxy A40 comes to Vienna insured and goes back the same way.
Will data be lost during the Galaxy A40 battery replacement?
No. Flash storage, Samsung account and SIM stay untouched. Photos, WhatsApp chats, apps – everything stays. A Samsung cloud backup is still recommended (5 min, included).
How long is the warranty on the new Galaxy A40 battery?
Six months on the cell and fitting. If the cell loses more than 10 % capacity in that time: a free re-replacement. Not covered: deep discharge from leaving the device unused for months.
Do I lose the Samsung warranty through the Galaxy A40 battery replacement?
The Samsung original warranty has expired on most Galaxy A40 devices for 2+ years. The Reparo warranty is 6 months on the cell and the work.
Is the Galaxy A40 battery replacement still worth it in 2026?
Yes. A battery replacement at €55 vs. a used device from about €120 – plus data migration and new 2FA setup cost time. The Galaxy A40 still gets some Samsung security updates.
Replace the Galaxy A40 battery in Vienna – book an appointment
Fixed price from €55, 60–90 minutes of work, 6 months warranty. Diagnostic check 25 EUR, waived on repair.