Samsung Galaxy S23 Ultra Battery Replacement Vienna
Your Galaxy S23 Ultra won't make it past four hours, shuts off out of the blue at 30%, or gets hot while charging? Reparo replaces the original Samsung battery (5000 mAh, split internally into a dual-cell design for faster charging) in Vienna – EUR 99 fixed price with a certified cell, a fresh IP68 seal and a 6-month warranty. Fast charging at 45W plus 15W wireless charging stays fully intact. Most jobs are done in 60–90 minutes, with a Vienna pickup service or mail-in from anywhere in Austria.
Galaxy S23 Ultra battery prices at a glance
Battery replacement
Fixed price, complete incl. fitting
- Certified Li-polymer battery cell
- Nominal voltage 3.85 V, original capacity
- Battery-health calibration after fitting
- Fast-charge compatibility fully retained
- 6-month warranty on cell and fitting
Diagnostic check without repair EUR 25 (waived if you go ahead with the repair). Vienna pickup service included.
Typical battery problems on the Galaxy S23 Ultra
- Your Galaxy S23 Ultra battery doesn't even last a working day – when it was new you used to get 5–7 hours of screen time
- The phone shuts off out of nowhere at 20–30% charge and only powers back on once plugged in
- The 5000 mAh battery gets noticeably hot while charging or during 45W fast charging – a sign of chemical ageing
- The dual-cell structure shows uneven discharge: the reading jumps from 60% to 20%
- Wireless charging at 15W no longer works or charges very slowly
- The casing bulges around the battery area – visible battery swelling (a consequence of deep discharge)
- The Galaxy S23 Ultra won't start at all after a full discharge – the battery is deeply drained and won't take a charge
The Galaxy S23 Ultra launched in 2023 with a 5000 mAh dual-cell pack – it's exactly that spec that ages audibly after 2–3 years. Ignoring battery shutdowns risks a deep discharge and permanent cell damage, which can make a simple battery swap impossible. See our Galaxy S23 Ultra repair overview for every option.
How does the Galaxy S23 Ultra battery replacement work?
- Battery diagnosis via service mode
The Samsung service code *#0228# opens the battery status page. There we check the voltage, temperature and charge cycles of your Galaxy S23 Ultra. A capacity below 80% or a cycle count above 500 justifies a replacement.
- Temperature-controlled display removal
On Samsung S/A devices the battery sits beneath the display – the OLED panel is warmed evenly to around 70 °C and released with flat carbon spudgers, without distorting the Armor Aluminum frame.
- Controlled removal of the old battery
Both battery cells (dual-cell build) are glued to the casing. We dissolve the adhesive with isopropanol 99 and fine pull-tabs – never using screwdrivers as a lever. For swollen batteries: hazardous-goods disposal handled directly by Reparo.
- Fit the certified battery cell
A dual-cell pack with 5000 mAh total capacity is connected to the original mainboard connector and fixed to the Armor Aluminum frame with Samsung adhesive. Polarity and seating pressure are checked – incorrect positioning costs 3% capacity.
- Display reassembly + IP68 reseal
The old adhesive film is fully removed, a new IP68 Samsung seal is applied, and the display is re-bonded under controlled pressure. After 30 minutes of curing time the sealing rating is restored.
- Full charge + calibration
A first charge to 100% at 25 °C room temperature – followed by a full discharge and recharge. This calibrates the battery gauge to the new cell's characteristics. You get your Galaxy S23 Ultra back with a precisely calibrated battery.
Reparo works without a walk-in – your Galaxy S23 Ultra is collected by courier in Vienna or sent in from the provinces in a hazardous-goods-compliant shipping box.
Replacing the Galaxy S23 Ultra battery – process, price and battery life in Vienna
The Samsung Li-Po battery in the Galaxy S23 Ultra has a 5000 mAh capacity, built as a dual-cell pack split across two cells wired in parallel. After 500 to 700 full cycles (usually 2–3 years of everyday use) the usable capacity drops below 80% – you notice it through sudden shutdowns between 20 and 30%, a hot casing during 45W charging, or a visible bulge in the back. Our Galaxy S23 Plus shows similar symptoms, but the repair effort and price differ.
Reparo replaces the Galaxy S23 Ultra battery in Vienna for EUR 99 fixed – about 7% of the original launch price (EUR 1399). That includes a certified 5000 mAh cell, a new IP68 seal, calibration and a 6-month warranty. If you also have a cracked display or touch issues, you save with a combined repair – see our separate S23 Ultra screen replacement for details.
Certified cell vs. original Samsung – what goes into the Galaxy S23 Ultra?
For the Galaxy S23 Ultra we fit certified battery cells that match the original Samsung specifications: the same nominal voltage (3.85 V), the same 5000 mAh capacity, the same charge curve. Samsung service-pack cells are only available through authorised Samsung service centres. Our cells last measurably as long as the originals – 500 to 700 cycles with no significant capacity loss. You can see every option in the price comparison on the Samsung repair overview.
Frequently asked questions about the Galaxy S23 Ultra battery replacement
How much does a battery replacement cost for the Galaxy S23 Ultra?
The Galaxy S23 Ultra battery replacement is EUR 99 fixed at Reparo in Vienna. The price includes a certified Samsung-compatible 5000 mAh battery cell, a new IP68 seal, calibration and a 6-month warranty. The diagnosis (EUR 25) is waived once you go ahead with the repair.
How long does the new Galaxy S23 Ultra battery last?
With normal use the replacement battery lasts 500–700 full cycles while keeping at least 80% capacity – roughly 2.5 to 3.5 years of everyday use. One full cycle = a complete discharge from 100% to 0%. Partial charges count proportionally. The warranty covers the cell and fitting for 6 months.
Why does the Galaxy S23 Ultra have two battery cells instead of one?
Samsung uses a dual-cell design on the Galaxy S23 Ultra: the 5000 mAh are split across two smaller cells that charge in parallel. This enables 45W fast charging with less heat per cell. During a swap we fit both cells as a certified pack – replacing a single cell makes no technical sense.
Does 45W Super Fast Charging still work on the Galaxy S23 Ultra after the swap?
Yes. The 45W fast-charging electronics sit on the Galaxy S23 Ultra's mainboard, not in the battery. Our replacement cell supports the full 45W power-delivery protocol and charges with original Samsung 25W/45W chargers in the same time as before. The cell chemistry is built for high-current charging.
Does 15W wireless charging stay intact on the Galaxy S23 Ultra?
Yes. The wireless-charging coil sits under the Armor Aluminum back cover on the Galaxy S23 Ultra, not on the battery. For a battery replacement we open the device from the front via the display – the back with the Qi coil stays untouched. The 4.5W reverse wireless charging (powering other devices on the Galaxy S23 Ultra's back) also keeps working.
Does the IP68 water resistance stay intact on the Galaxy S23 Ultra after the battery swap?
Yes. With every battery replacement we fully renew the IP68 Samsung seal around the display. After a proper fitting your Galaxy S23 Ultra regains full protection against splashes and brief immersion up to 1.5 m. We generally don't recommend active diving after any casing work.
Will the display be damaged during the Galaxy S23 Ultra battery swap?
Not with us. Samsung bonds the display and casing on the Galaxy S23 Ultra so that battery access is only possible through the display. We warm the adhesive layer to a controlled 70 °C and release the panel with flat carbon spudgers – no bending, no pressure. On 2% of repairs the adhesive film still tears; in that case we replace the bonding free of charge and the IP68 seal goes on fresh.
Can I just drop my Galaxy S23 Ultra off at Reparo?
Reparo has no walk-in on site. You book an appointment online – our courier comes to your chosen address across all 23 Vienna districts (1010 to 1230). From the provinces you send the Galaxy S23 Ultra in insured, and the return shipping is included in the battery-replacement price.
How does the Vienna pickup service work for the Galaxy S23 Ultra battery replacement?
Book online, choose a time slot between 9 a.m. and 6 p.m., and our courier drives to your Vienna address (1st district Innere Stadt to 23rd Liesing). The battery replacement takes 60–90 minutes in the studio, often returned the same day. Pickup & delivery starts at EUR 7.90 by district.
Is shipping a Galaxy S23 Ultra battery from the provinces safe?
Yes. Battery shipping falls under hazardous-goods class 9 – after booking we send you a special shipping box with UN approval. The Galaxy S23 Ultra travels to Vienna insured and compliant, and goes back the same way after the swap. We regularly serve customers from Graz, Linz, St. Pölten, Klagenfurt, Innsbruck and Bregenz.
Is any data lost during the Galaxy S23 Ultra battery replacement?
No. The flash storage, Samsung account and SIM card are not disconnected during a battery swap. Photos, WhatsApp chats, apps, Wi-Fi passwords – everything stays in place. We still recommend a Samsung Cloud backup before any repair (free, 5 minutes via the Samsung account settings).
How long is the warranty on the new Galaxy S23 Ultra battery?
Six months on the battery cell and the fitting. If the cell loses more than 10% capacity within that time, we replace it free of charge. Not covered are deep discharge from leaving the phone unused for months, or damage from third-party chargers without USB-PD certification.
Do I lose my Samsung warranty by replacing the Galaxy S23 Ultra battery?
The original Samsung warranty has expired on most Galaxy S23 Ultra devices for 2+ years already. Our Reparo warranty on the new battery cell runs 6 months from fitting – on the cell and the labour.
Is a Galaxy S23 Ultra battery replacement still worth it in 2026?
Yes. Samsung supports the Galaxy S23 Ultra with security updates until 2030. A battery replacement at EUR 99 versus a comparable used device with a fresh battery from around EUR 601 – plus the data migration, fresh setup and lost 2FA tokens.
My Galaxy S23 Ultra was flat for months – can the battery still be replaced?
Yes, but a diagnosis is mandatory. With a deep discharge over more than 3 months the cell can be so chemically damaged that it no longer starts when fitted. We check the voltage and cell impedance in the diagnosis (EUR 25, waived on repair) – if only the cell is dead, a swap is enough. For mainboard damage from a deep discharge (rare) we discuss alternatives.
Replace the Galaxy S23 Ultra battery in Vienna – book an appointment
Fixed price EUR 99, 60–90 minutes of work, a 5000 mAh certified cell, IP68 seal renewed, 6-month warranty. Diagnosis EUR 25 waived on repair. Pickup service in Vienna or mail-in from Austria.