POCO F8 Ultra Battery Replacement Vienna
Your POCO F8 Ultra can't make it through the evening and shuts down at 20%? The battery cell (5800 mAh) is finished after roughly 500 charge cycles. Reparo replaces it in Vienna for a fixed EUR 89 — 120W HyperCharge stays intact, 80W wireless charging stays intact, 6-month warranty. Usually 60–90 minutes, pickup service in Vienna or send-in from anywhere in Austria.
POCO F8 Ultra battery pricing at a glance
Battery replacement
All-in fixed price incl. fitting
- 5800 mAh rated capacity, same as factory
- 6-month warranty on the cell and the fitting
- 80W Qi wireless stays fully functional
- UN3481-compliant dangerous-goods shipping
- Battery-health calibration via HyperOS 2
Diagnostic check 25 EUR, waived on repair. Pickup service in Vienna included.
Typical battery problems on the POCO F8 Ultra
- Your POCO F8 Ultra no longer lasts a working day – it used to easily reach 6-8 hours of screen-on time
- The device suddenly switches off at 25-35% remaining charge and only comes back on once plugged in
- The 5800 mAh battery gets noticeably hot during 120W fast charging – far warmer than it used to
- The battery shows 40% and two minutes later the reading jumps to 18% — the battery gauge is out of calibration
- Wireless charging at 80W no longer works or only charges much more slowly
- The back panel is bulging around the battery area – visible battery swelling after a deep discharge
- The POCO F8 Ultra won't start after a complete discharge, not even after a long charge
- HyperOS 2 shows a markedly reduced maximum capacity in the battery settings
How does the POCO F8 Ultra battery replacement work?
- Battery diagnosis via HyperOS 2 + measuring device
HyperOS 2 settings → Battery → Health shows the capacity. Our voltage and impedance measurement on the battery module confirms the finding. At < 80 % capacity or a cycle count > 500 we recommend a replacement.
- Carefully open the back panel
The POCO F8 Ultra is opened with a special suction cup and a warmed adhesive edge. The back panel is lifted off gently, without warping the aluminium frame.
- Release the old battery
The battery cell is fixed to the aluminium frame with pull tabs. We loosen the adhesive strips with isopropanol-99 – never using screwdrivers as a lever.
- Fit a certified 5800 mAh cell
A new lithium-polymer cell with identical capacity, 3.87 V nominal voltage and an exact-fit form factor. Connector to the mainboard, adhesive to the frame, contact pressure controlled.
- Re-sealing + gasket
Old adhesive film removed, fresh Xiaomi adhesive applied, the back panel re-bonded under pressure. 30 min curing time.
- Full charge + calibration
First charge to 100 % at 25 °C – HyperOS 2 re-calibrates the battery gauge to the new cell. We check battery health, 120W charging and 80W wireless.
Replacing the POCO F8 Ultra battery – price, process and charging tech in Vienna
The lithium-polymer battery in the POCO F8 Ultra has 5800 mAh of capacity including 80W Qi wireless. After 500 to 700 full cycles the maximum capacity drops to 80 % – reached after 2-3 years of daily use. HyperOS 2 shows you exactly where you stand under Settings → Battery → Battery health.
Reparo replaces the POCO F8 Ultra battery in Vienna for a fixed EUR 89. That's around 10 % of the original launch price (EUR 899). Included: a certified 5800 mAh lithium-polymer cell, fitting, HyperOS 2 calibration and a 6-month warranty. If you also have screen damage: POCO F8 Ultra screen replacement.
Xiaomi service vs. Reparo – what's the difference?
Authorised Xiaomi service centres in Austria charge 60-90 EUR for a battery replacement depending on the model – and only at certified partners that specialise in POCO F8 Ultra service. Reparo charges EUR 89 – we use Xiaomi-compatible lithium-polymer cells with the same cell chemistry and charge curve. See all the options for your device: POCO F8 Ultra repair overview.
Frequently asked questions about the POCO F8 Ultra battery replacement
Xiaomi battery replacement – what does it cost for the POCO F8 Ultra in Vienna?
A POCO F8 Ultra battery replacement costs a fixed EUR 89 at Reparo in Vienna. Included: a certified 5800 mAh lithium-polymer cell, HyperOS 2 calibration, 6-month warranty. Diagnostic check 25 EUR, waived on repair. Pickup service in Vienna or send-in from anywhere in Austria.
What does the battery replacement cost for the POCO F8 Ultra?
The POCO F8 Ultra battery replacement costs a fixed EUR 89 at Reparo in Vienna. Included: a certified 5800 mAh lithium-polymer cell, fitting, HyperOS 2 calibration, a 120W charging test and a 6-month warranty. The 25 EUR diagnostic check is waived on repair.
How long does the new POCO F8 Ultra battery last?
With normal use the replacement battery lasts 500-700 full cycles at a minimum of 80 % capacity – roughly 2.5 to 3.5 years of everyday use. One full cycle equals a complete discharge from 100 % to 0 %. The warranty covers the cell and the fitting for 6 months.
Is the 5800 mAh battery for the POCO F8 Ultra a standard replacement or genuine?
We fit certified 5800 mAh battery cells to the Xiaomi original specification: 3.87 V nominal voltage, identical capacity, the same charge curve. Genuine Xiaomi service packs are only available through authorised Xiaomi service centres. Our cells last measurably the same.
Does 120W HyperCharge work on the POCO F8 Ultra after the replacement?
Yes. The 120W HyperCharge electronics sit on the POCO F8 Ultra mainboard, not in the battery. Our replacement cell supports the full charging protocol and charges with genuine Xiaomi chargers in the same time as before. The cell chemistry is designed for high-current charging.
Does 80W wireless charging on the POCO F8 Ultra survive the battery replacement?
Yes. The Qi charging coil on the POCO F8 Ultra sits under the back cover on a separate assembly, not on the battery. During the battery replacement we open the back panel — the wireless coil stays untouched. 80W wireless works after the replacement just as before.
My POCO F8 Ultra is bulging at the back – is that dangerous?
Yes, potentially. A swollen battery has built up gas pressure (the cell chemistry is finished) – a fire and explosion risk, especially in heat. Come to us straight away: dangerous-goods disposal handled directly by Reparo, replacement for EUR 89. Don't charge the device further or leave it in the sun in the meantime.
Is the screen damaged during the POCO F8 Ultra battery replacement?
No, not with us. We open the POCO F8 Ultra from the back, so the screen stays untouched. With the aluminium build we monitor the heat management especially carefully so the aluminium frame doesn't warp.
Can I drop my POCO F8 Ultra off directly at Reparo?
Reparo has no walk-in counter. You book an appointment online – our courier comes to your address across all 23 Vienna districts. From the other federal states, insured shipping with return delivery included in the price.
How does the Vienna pickup service work for the POCO F8 Ultra battery replacement?
Book online, choose a time slot between 9 am and 6 pm, the courier drives to your Vienna address (1st district to 23rd, Liesing). Battery replacement takes 60-90 minutes in the studio, often returned the same day. The courier is included in the fixed EUR 89. Pickup service in Vienna starts at EUR 7.90.
Is shipping a POCO F8 Ultra battery from the federal states safe?
Yes. Battery shipping falls under dangerous-goods class 9 – we send a UN-approved shipping box. The POCO F8 Ultra arrives in Vienna insured and goes back the same way after the replacement, with free return shipping. We regularly handle customers from Graz, Linz, St. Pölten, Klagenfurt, Innsbruck and Bregenz.
Is any data lost during the POCO F8 Ultra battery replacement?
No. The flash storage, Mi Account and SIM card are not disconnected during the battery replacement. Photos, WhatsApp chats, apps and settings are kept in full. A Mi Cloud backup is still recommended before any repair.
How long is the warranty on the new POCO F8 Ultra battery?
Six months on the battery cell and the fitting. If the cell loses more than 10 % capacity in that time: a free re-replacement. Not covered are deep discharge from leaving the device unused for months, or external force.
Do I lose the Xiaomi warranty by having the POCO F8 Ultra battery replaced?
The original Xiaomi warranty (1 year) is currently still valid on the POCO F8 Ultra. While the manufacturer warranty is still running it lapses through repairs outside authorised workshops. Reparo warranty: 6 months from fitting on the cell and the labour.
Is the POCO F8 Ultra battery replacement still worth it in 2026?
Yes. A battery replacement at EUR 89 vs. a used device with a fresh battery from around EUR 699 – plus moving your data, setting up a new Mi Account and losing app data. The POCO F8 Ultra is still supported with HyperOS 2 updates from Xiaomi, and the repair extends its life by 2-3 years.
Replace your POCO F8 Ultra battery in Vienna – book an appointment
Fixed price EUR 89, 60–90 minutes, 5800 mAh lithium-polymer, HyperOS 2 calibration, 6-month warranty.