OnePlus 7 Battery Replacement Vienna
Your OnePlus 7 no longer lasts half a day, shuts down at 30 % remaining charge, or gets noticeably hot during Fast Charge 20W charging? Reparo replaces the certified Li-polymer cell (3700 mAh) in Vienna — 69 € fixed price, 6 months warranty, Fast Charge 20W stays fully functional. Usually 60–90 minutes, pickup service Vienna.
OnePlus 7 battery price at a glance
Certified battery replacement
Complete including installation and calibration
- Certified Li-polymer cell with 3700 mAh
- Nominal voltage 3.87 V, same capacity as original
- OxygenOS calibration to the new cell
- Fast Charge 20W compatibility fully preserved
- 6 months warranty on cell and installation
Diagnostic check 25 EUR, waived on repair. Pickup service Vienna included, Austria-wide shipping in a dangerous-goods box.
Typical battery problems with the OnePlus 7
- Your OnePlus 7 no longer lasts a full working day — 6 to 8 hours of screen time used to be no problem
- The device shuts down spontaneously between 20 and 30 % remaining charge, especially in cold weather
- The 3700 mAh battery gets noticeably hot during Fast Charge 20W charging, and charging is throttled
- The battery percentage display jumps in large steps instead of falling steadily
- The back panel bulges visibly in the battery area — a clear sign of swelling
- The OnePlus 7 no longer starts after a full discharge, not even on the charger
- OxygenOS reports significantly reduced capacity in the battery settings
How does the OnePlus 7 battery replacement work?
- Battery diagnosis
OxygenOS battery indicator plus our voltage measurement at the battery module. Below 80 % capacity or over 500 full cycles, we recommend a replacement.
- Carefully open the display
The OnePlus 7 is opened with a special suction cup, the flex cables are detached, and the panel is fixed on the stand.
- Release the battery adhesive strips
The 3700 mAh cell is fixed to the frame with pull tabs. We release it with 99 % isopropanol, never with a screwdriver lever.
- Insert the certified cell
New Li-polymer cell with identical capacity, 3.87 V nominal voltage, exact-fit form factor. Connector to the mainboard, adhesive to the frame, contact pressure checked.
- Reseal the display and calibrate
New seal on the frame, panel bonded under pressure, 30 minutes curing time. Then a full charge for calibration.
- Test and fast-charge check
OxygenOS battery health, voltage curves, charging speed with the original OnePlus Fast Charge 20W power adapter.
Replacing the OnePlus 7 battery — price, process and lifespan in Vienna
The Li-polymer battery in the OnePlus 7 has a 3700 mAh capacity with Fast Charge 20W. After 500 to 700 full cycles, the maximum capacity drops to 80 % — with intensive use often after just two years. OxygenOS shows the status in the settings under Battery.
Reparo replaces the OnePlus 7 battery in Vienna for 69 € fixed price. Included: a 3700 mAh Li-polymer cell with 20W Fast Charge and stable durability, OxygenOS calibration, fast-charge test, 6 months warranty. If you also have display issues, you can find the repair under OnePlus 7 screen replacement.
OnePlus service vs. Reparo — what makes the difference?
OnePlus has hardly any authorized workshops in Austria — most repairs run as a send-in to Germany (two to three weeks of processing time). Reparo replaces in Vienna within 60 to 90 minutes, courier pickup the same day, 6 months warranty. All models at a glance: OnePlus repair Vienna.
Frequently asked questions about the OnePlus 7 battery replacement
OnePlus 7 battery replacement in Vienna — what does the replacement cost?
The OnePlus 7 battery replacement costs 69 € fixed price at Reparo in Vienna. Included: a certified 3700 mAh Li-polymer cell, OxygenOS calibration, 6 months warranty. Diagnostic check 25 EUR, waived on repair.
What does the battery replacement cost for the OnePlus 7?
69 € fixed price. Included are the cell, installation, calibration, adhesive work and 6 months warranty. No hidden surcharges.
How long does the new OnePlus 7 battery last?
With normal use, the replacement battery manages 500 to 700 full cycles with at least 80 % capacity — that corresponds to roughly 2.5 to 3.5 years of everyday use.
Does Fast Charge 20W work on the OnePlus 7 after the battery replacement?
Yes. On the OnePlus 7, the fast-charge logic sits on the mainboard and the charging chip, not in the cell. Our replacement cell supports the full Fast Charge 20W protocol — charging in the same time as before.
Does OxygenOS stay unchanged on the OnePlus 7 after the battery replacement?
Yes. The flash storage and mainboard are not touched during the battery replacement. OxygenOS, apps, photos, accounts and the Alert Slider mode all stay fully preserved.
How long does the OnePlus 7 battery replacement take?
60 to 90 minutes of actual working time. With the Vienna pickup service, usually back the same working day, at the latest the next day.
My OnePlus 7 is bulging at the back — is that dangerous?
Yes, potentially. A swollen Li-polymer battery has built up gas pressure — the risk of fire or explosion rises with every charge cycle. Switch it off immediately, send the device to us; the dangerous-goods disposal of the old cell is included.
Can I drop off my OnePlus 7 for the battery replacement in Vienna?
No, Reparo has no customer walk-in. Battery repairs run via online booking plus courier pickup in all 23 Vienna districts. From the federal states, insured shipping in a dangerous-goods box.
Battery replacement via pickup service — how does it work for the OnePlus 7 in Vienna?
You choose a preferred time window online (9 am to 6 pm), the courier picks up the device, we replace the cell in 60–90 minutes, return the same day. The courier is included in the battery fixed price.
Shipping from the federal states: is the OnePlus 7 battery replacement safely possible?
Yes. Shipping there and back takes place in a UN-approved dangerous-goods box with transport insurance — regularly devices from Graz, Linz, Salzburg, Klagenfurt, Innsbruck and Bregenz.
Is any data lost during the OnePlus 7 battery replacement?
No. The flash storage, OnePlus account, SIM and all apps stay untouched. We still recommend a backup — it makes the work more relaxed.
How long does the warranty on the new OnePlus 7 battery last?
Six months Reparo warranty on cell and installation. If a defect occurs during this time: a free re-replacement, without a second diagnostic fee.
Do I lose the OnePlus warranty on the OnePlus 7 through the battery replacement?
The OnePlus 7 factory warranty (2 years) has been expired for 7 years — so nothing is lost there. What you get: 6 months Reparo warranty from installation.
My OnePlus 7 charges slower than before — battery or power adapter?
Often both together. An ageing battery throttles the charging current as self-protection, while at the same time the USB port may be corroded. Our diagnosis (25 €, waived on repair) cleanly separates the two.
Is the OnePlus 7 battery replacement still worth it in 2026?
Yes. 69 € for the replacement versus 139 € for a used device in comparable condition. OnePlus still supplies the OnePlus 7 with OxygenOS updates for 2 more years — the device stays secure and usable.
Replace the OnePlus 7 battery in Vienna
Fixed price 69 €, 60–90 minutes working time, 6 months warranty.