Samsung Galaxy A04s Battery Replacement Vienna
Your A04s drops below 20 percent in the afternoon, switches off in the cold or takes ages to charge? Reparo replaces the 5,000 mAh battery of your Galaxy A04s in Vienna for a fixed EUR 49, usually in 60 to 90 minutes. Original battery or certified replacement battery, six-month warranty, pickup, send-in or drop-off by appointment.
Samsung A04s battery replacement: cost and service
A new battery for the Samsung Galaxy A04s costs EUR 49 at Reparo in Vienna. The price includes the 5,000 mAh battery, opening and closing the back, new adhesive strips for the cell and a charging test. You get an original Samsung battery or a certified replacement battery, plus a six-month warranty. If you order the replacement, the EUR 25 diagnostic check is waived.
Galaxy A04s battery replacement
New battery incl. fitting and charging test
- Battery with 5,000 mAh
- Original battery or certified replacement battery
- New adhesive strips for the cell
- Test of charge level and charging behaviour
- 6-month warranty on battery and fitting
Diagnostic check EUR 25, waived on repair. When sent in, the A04s goes back insured.
Typical battery problems on the Galaxy A04s
- The charge level suddenly drops from 25 to 3 percent
- The A04s simply switches off in the cold or while taking photos
- Fully charged in the morning, already empty by early afternoon
- The back lifts slightly at one edge
- The phone gets warm while charging and charges noticeably slower
A lithium battery ages with every charge. After four years of everyday use, the battery in the A04s often has only part of its original capacity left. If the back is lifting, the cell is probably swollen: then stop charging and do not squeeze the phone. The Galaxy A04s repair page gives an overview of all prices.

How the A04s battery change works
The battery in the Galaxy A04s sits under the plastic back and is held in the housing with adhesive strips. We take off the back, carefully release the old cell, fit the new one with fresh adhesive strips and close the housing again. Then we check charging and the charge display. The whole replacement usually takes 60 to 90 minutes.
- Check the battery
We read out charging behaviour and condition and look for a bulging cell. That way you know it really is the battery.
- Open the housing
The back is carefully released and the battery connection disconnected.
- Swap the cell
The old cell comes out without prying on the cell itself, and the new one sits on fresh adhesive strips.
- Close and charge
Back on, then a cable charging test and a check of the percentage display.
Your choice: pickup in Vienna, send-in by post or drop-off by appointment in the 22nd district.
New battery or new phone: the maths for the A04s
On the A04s the battery usually fades first, while screen and camera still work perfectly. EUR 49 for a new battery is a small part of what a current Samsung costs – Samsung put the Galaxy A17 5G on sale in 2025 at around EUR 230.
| Battery replacement at Reparo | New Galaxy A17 5G | |
|---|---|---|
| Cost | EUR 49 | RRP around EUR 230 |
| Set-up | none, everything stays | move accounts, apps and chats |
| Time | 60–90 minutes | purchase plus set-up |
| Warranty | 6 months on battery and fitting | manufacturer warranty |
RRP at launch in 2025 according to Samsung, street prices are often lower.
A new battery brings no new Android versions; the A04s stays on the version it has now. But it means you get through the day again without a power bank. If the glass is cracked too, we do both in one appointment, see A04s screen replacement.
The A04s battery in detail: 5,000 mAh and 15 watts
The Galaxy A04s has a lithium-polymer battery with 5,000 mAh, charged via USB-C at up to 15 watts. When new, that usually lasts well over a day with normal use. After a few hundred full charge cycles the capacity drops noticeably; with daily charging that happens after two to three years.
Can I change the A04s battery myself?
It is possible but not advisable. The battery is glued in, and prying it out with a metal tool can damage the cell. A damaged lithium cell can catch fire. With us the finished replacement costs EUR 49 with a warranty. The sister model is covered on the Galaxy A04 battery replacement page.
How to keep the new battery fit for longer
Charge the A04s between 20 and 80 percent where possible and do not leave it in blazing sun or on a radiator. Heat harms a battery more than frequent charging. A charger with more than 15 watts brings nothing on the A04s, by the way; the phone does not take more anyway.
Frequently asked questions about Galaxy A04s battery replacement
Samsung Galaxy A04s battery change – what does it cost?
EUR 49 fixed price. For that we open the back, fit a new battery with 5,000 mAh, secure it with fresh adhesive strips and check that the A04s charges properly. A six-month warranty is included.
Are there hidden extra costs for the A04s battery replacement?
No hidden ones. The final amount is fixed before we start and, for the battery replacement alone, is EUR 49. If you choose pickup, the zone price from EUR 7.90 is added; the EUR 25 diagnostic check is cancelled with the order.
How many mAh does the Galaxy A04s battery have?
5,000 mAh, as a lithium-polymer cell. The replacement battery has the same capacity, so the A04s lasts as long as when new after the replacement.
Is the new battery for the A04s a Samsung original?
You get either an original Samsung battery or a certified replacement battery, depending on availability. Both have 5,000 mAh and are tested before fitting. The six-month warranty applies to both equally.
Why does my A04s switch off at 20 percent?
When a worn cell is under load, its voltage sags briefly and the A04s switches off to protect itself. Cold makes it worse. A new battery usually ends it.
The back of my A04s is lifting – is the battery swollen?
Very likely. A swollen lithium battery pushes the back outward from inside and can heat up. Put the A04s switched off in a cool place, away from anything flammable, and book an appointment. We remove the cell safely.
How long does the battery replacement on the Galaxy A04s take?
Usually 60 to 90 minutes from the start of the repair. If the A04s is collected in Vienna, you often have it back the same day.
Does the A04s charge at normal speed again after the battery replacement?
Yes, at up to 15 watts as from the factory. If it still charges slowly or intermittently with a new battery, the cause is usually the cable, charger or charging port. We check that in the test as well.
When can I hand over my A04s in person for the battery replacement?
Book drop-off in the form and choose a slot in the 22nd district; we then take the A04s at that time. Without a booked appointment nobody is waiting there. Many prefer the pickup service, which saves the trip.
Do you collect my A04s from home for the new battery?
Yes. Give us address and preferred time when booking, and our pickup service takes the A04s with it. It comes back with a new battery to the same door. The zone price starts at EUR 7.90 and depends on the district.
Can I send in the A04s for the battery replacement?
Yes, from anywhere in Austria, as long as the battery is not bulging. Switch the A04s off, pad it well and put it in a sturdy box. With a swollen battery, please call first so we can arrange safe shipping.
Is my data still there after the A04s battery change?
Yes. Internal storage and microSD card are untouched by the battery change. You will find contacts, photos and apps just as before. A backup is still a good idea.
How long is the warranty on the new A04s battery?
Six months on battery and fitting. If you have problems during that time, we check the battery free of charge and replace it if it does not hold its capacity. The warranty does not cover drop or water damage.
Is a new battery worth it for a four-year-old A04s?
If screen and port are fine, yes. EUR 49 compares with an RRP of around EUR 230 for a new Galaxy A17 5G. The battery does not bring back new Android versions, though.
My A04s got wet and now does not charge – will a new battery help?
Not necessarily. Moisture often attacks the contacts on the logic board, and then even a fresh battery does nothing. We open the A04s, clean and check the logic board first and then tell you whether the battery or something else is to blame.
A04s battery replacement in Vienna – book your slot
Fixed EUR 49, battery with 5,000 mAh, 60 to 90 minutes, six-month warranty. Diagnostic check EUR 25, waived on repair.