iPhone 12 Pro Max Battery Replacement Vienna
Your iPhone 12 Pro Max used to last all day, but now it's flat by mid-afternoon, shuts down suddenly at 30 percent or grows warm on the charger? The 12 Pro Max shipped with the biggest battery of its generation — when that cell wears out, even all-day endurance disappears. A fresh battery restores it. Reparo replaces the iPhone 12 Pro Max battery in Vienna for EUR 79, usually in about an hour, with a 6-month warranty.
iPhone 12 Pro Max Battery Replacement — Price & Service
- Fresh high-capacity cell restoring full all-day endurance
- Stops sudden shutdowns and rapid percentage drops
- Battery Health resets to 100% capacity
- 6-month warranty on the battery & labour
- Turnaround: usually about 1 hour
- Pickup service in Vienna or send-in
Diagnostic check EUR 25 — waived if you go ahead with the repair. We confirm it's the battery and not a charging-port or board fault first.
When does the iPhone 12 Pro Max need a new battery?
- All-day endurance is gone — it's flat by mid-afternoon
- It shuts down suddenly even with 20–40 percent showing
- Battery Health has dropped below 80 percent
- iOS shows the "Service" or "significantly degraded" battery message
- The phone gets warm or charges much slower than it used to
- Performance feels throttled as iOS protects the worn cell
A lithium battery wears with every charge cycle, and on a 2020 iPhone 12 Pro Max that cell has been through hundreds of them. Capacity falls, the voltage sags under load, and iOS may quietly slow the phone to prevent shutdowns. Because the 12 Pro Max started with the largest battery in the range, a worn one is especially noticeable. A new cell brings the endurance back and lifts the throttling. See the full iPhone 12 Pro Max repair overview.
How the iPhone 12 Pro Max battery replacement works
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Book and hand over
Book online or call. We collect the iPhone 12 Pro Max with the Vienna pickup service from home or work — no shop visit needed.
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Battery health check
We confirm the battery is the cause and not the charging port or board. Diagnostic check EUR 25 — waived once you approve.
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Fit the new battery
We remove the worn cell and fit a fresh high-capacity battery matched to the iPhone 12 Pro Max, then calibrate it.
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Test & return
We verify charging, capacity readout and a stable charge under load, then return the iPhone 12 Pro Max with a 6-month warranty.
Outside Vienna? Post the iPhone 12 Pro Max to us insured from anywhere in Austria — we replace the battery and ship it back, usually within 1–3 business days, with free return shipping.
iPhone 12 Pro Max battery replacement — is it worth it?
The 12 Pro Max is still a fast, capable flagship — a tired battery is usually the only thing holding it back. At EUR 79 a new cell gives you another couple of years of all-day use and keeps all your data, far cheaper than replacing a phone that's otherwise excellent.
- EUR 79 — fixed price
- Full all-day endurance restored
- Battery Health back to 100%
- 6-month warranty
- Done in about 1 hour
- EUR 400+ for a comparable used model
- A worn battery only gets worse
- Shutdowns and throttling continue
- Hours migrating data and accounts
A swollen battery is a safety issue — if yours pushes against the screen or the phone feels warped, stop using it and contact us straight away for your iPhone 12 Pro Max.
What battery does Reparo fit in the iPhone 12 Pro Max?
We fit a fresh high-capacity battery matched to the iPhone 12 Pro Max, restoring the full original 3.687 mAh-class endurance and the largest capacity in the 12 line-up. After fitting we calibrate it so the percentage reads accurately and Battery Health resets, and the new cell stops the shutdowns and throttling the old one caused. Every battery replacement carries a 6-month warranty on the part and the labour.
iPhone 12 Pro Max battery replacement cost and process in Vienna
An iPhone 12 Pro Max battery replacement costs EUR 79 and is usually done in about an hour. The phone shipped with the biggest cell in the 12 range, so when it wears the loss of endurance is dramatic — from all-day to barely an afternoon.
The clearest sign is in Settings under Battery Health: once maximum capacity drops below 80 percent, iOS flags it and may throttle performance to avoid sudden shutdowns. A new battery resets capacity to 100 percent, removes the throttling and stops the shutdowns. We always confirm it's the battery — not the charging port or board — before fitting.
Why does my iPhone 12 Pro Max shut down with charge left?
A worn cell can't hold steady voltage under load, so the phone cuts out even at 30 percent — most often in the cold or during demanding apps. A new battery delivers stable voltage and ends the surprise shutdowns.
Will I lose my data during a battery replacement?
No. A battery replacement is a hardware job that never touches internal storage — your photos, apps and settings all stay exactly as they are. Explore our full iPhone repair range too.
iPhone 12 Pro Max battery replacement — frequently asked questions
How much does an iPhone 12 Pro Max battery replacement cost?
The iPhone 12 Pro Max battery replacement is EUR 79 — a fixed price including the new battery, fitting, calibration and a 6-month warranty. The EUR 25 diagnostic check is waived once you go ahead.
How do I know my iPhone 12 Pro Max battery needs replacing?
Check Settings → Battery → Battery Health. Below 80 percent maximum capacity, plus sudden shutdowns or all-day endurance gone, means it's time. We confirm it in the diagnosis.
Why does my iPhone 12 Pro Max shut down with charge left?
A worn cell can't hold steady voltage under load, so the phone cuts out even at 30 percent, often in cold or heavy use. A new battery delivers stable voltage and ends the shutdowns.
Will the new battery stop the throttling?
Yes. iOS throttles to protect a worn battery from shutdowns. Once a healthy cell is fitted and Battery Health reads 100 percent, the performance limiting lifts and the phone runs at full speed.
How long does the battery replacement take?
Usually about an hour. With our Vienna pickup service the iPhone 12 Pro Max is often back the same day; a send-in from elsewhere in Austria takes 1–3 business days.
Will I lose my data during the battery replacement?
No. A battery replacement is a hardware job that never touches internal storage, so all your photos, apps and settings remain exactly as they were.
My iPhone 12 Pro Max battery is swollen — is that dangerous?
Yes, treat it seriously. A swollen battery can push the screen up or warp the frame. Stop using and charging it and contact us right away — we replace swollen cells safely.
Does the new battery restore the original capacity?
Yes. We fit a fresh high-capacity cell matched to the iPhone 12 Pro Max's largest-in-range battery, so the full original all-day endurance returns and Battery Health shows 100 percent.
Will Battery Health show 100% again?
Yes. After fitting and calibrating the new battery, maximum capacity resets to 100 percent and the percentage reads accurately, just like a new iPhone 12 Pro Max.
Can I just drop my iPhone 12 Pro Max off at your shop?
No — Reparo has no walk-in. You book an appointment and we collect the iPhone 12 Pro Max by pickup service in Vienna, or you post it in. Nothing is dropped off at a counter.
How does the Vienna pickup service work?
Book a slot, we collect the iPhone 12 Pro Max at home or work in Vienna, replace the battery and deliver it back. Pickup & delivery starts at EUR 7.90 by district.
Can I send the iPhone 12 Pro Max in from outside Vienna?
Yes. Book, pack it carefully and ship insured from anywhere in Austria. We replace the battery and return it within 1–3 business days, with free return shipping.
Is there a warranty on the battery replacement?
Yes. Reparo gives a 6-month warranty on the battery and the labour. If the new cell develops a fault within that time, we replace it free.
Will a third-party battery void my Apple warranty?
A third-party battery ends Apple's manufacturer warranty, which on a 2020 iPhone 12 Pro Max has usually expired. You get Reparo's own 6-month warranty in return.
My iPhone 12 Pro Max battery drained fast after it got wet — same repair?
Maybe not just the battery. Moisture can corrode the board and cause fast drain, which needs a separate diagnosis (EUR 25, waived on repair) — see our iPhone 12 Pro Max water damage repair.
Replace your iPhone 12 Pro Max battery in Vienna — EUR 79
Fixed price, fresh high-capacity cell, all-day endurance restored, Battery Health back to 100%, 6-month warranty, done in about an hour. Pickup service in Vienna. Diagnostic check waived on repair.