iPhone 11 Pro Max Battery Replacement Melbourne
From $99 · 15–20 minutes · Same Day · Lifetime Warranty
6.5-inch Super Retina XDR OLED · A13 Bionic · 2019 · 3969 mAh
The iPhone 11 Pro Max carried Apple's largest battery in 2019 — a 3969 mAh cell that originally delivered exceptional battery life. After several years of daily use, however, even this large battery degrades. Heavy users who relied on the 11 Pro Max for its endurance are often the first to notice the drop. If your iPhone 11 Pro Max no longer lasts a full workday or shows battery health below 80%, iTech Repairs offers same-day replacement from $99 at our Melbourne stores in Braybrook and Spotswood.
iPhone 11 Pro Max — At a Glance
2019
A13 Bionic
6.5-inch
3969 mAh
15–20 minutes
$99
The iPhone 11 Pro Max 3969 mAh battery was class-leading in 2019. The larger cell typically degrades more slowly than smaller models, but by 2025 many 11 Pro Max units are seeing significant capacity loss — especially if they've been frequently discharged to near-zero.
Signs Your iPhone 11 Pro Max Battery Needs Replacing
Battery Life Drop-Off
The 11 Pro Max was once known for 2-day battery life. If you're now struggling to reach the end of a single day, battery capacity has significantly degraded.
Overnight Drain
Losing 15–25% battery overnight in standby — unusual for a phone with a large cell — suggests a failing battery that can't hold charge efficiently.
Shutdown Under Load
The phone shuts off during demanding tasks like video playback, navigation, or gaming even with charge remaining.
Heat During Charging
Excessive heat while charging with the 18W or 20W adapter is a symptom of a degraded battery struggling to accept charge efficiently.
Given the 11 Pro Max's continued capability — its A13 chip, triple cameras, and large 6.5-inch display are still competitive — replacing the battery is a cost-effective way to extend its life for another 2–3 years. At $99 with a lifetime warranty, it beats trading in or upgrading.
Why Choose iTech Repairs for iPhone 11 Pro Max Battery?
Fast 15–20 minutes Service
iPhone 11 Pro Max battery replacements completed in 15–20 minutes while you wait in-store.
Lifetime Warranty
Every iPhone 11 Pro Max battery replacement includes a lifetime warranty on parts and labour.
Data Safe
Battery replacement does not touch your data. Apps, photos, contacts, and settings remain intact.
Free Battery Health Check
Not sure if you need a replacement? We offer a free battery health diagnostic on walk-in.
Cheapest Price Guaranteed
From $99 — firm quote with no hidden fees before any work begins.
Walk-ins Welcome
No appointment needed. Visit our Braybrook or Spotswood store any day, 9am–9pm.
iPhone 11 Pro Max Battery Replacement FAQ
How much does iPhone 11 Pro Max battery replacement cost in Melbourne?
iPhone 11 Pro Max battery replacement at iTech Repairs starts from $99. We provide a firm quote before starting — no hidden charges.
Why does the iPhone 11 Pro Max battery degrade if it's so large?
All lithium-ion batteries degrade with charge cycles regardless of capacity. After 500+ cycles (typically 2–3 years of daily use), maximum capacity drops noticeably. The 3969 mAh cell degrades more slowly than smaller models, but will still need replacement eventually.
How long does iPhone 11 Pro Max battery replacement take?
Our technicians complete iPhone 11 Pro Max battery replacements in 15–20 minutes. Walk in, wait, walk out — no appointment needed.
Does a new battery restore iPhone 11 Pro Max to original battery life?
Yes. A quality replacement battery restores the original 3969 mAh capacity, giving you back the all-day (and then some) battery life the 11 Pro Max was known for.
What warranty do I get on iPhone 11 Pro Max battery replacement?
Lifetime warranty on both the replacement battery and labour. If the battery fails or has issues, we fix it at no extra charge.
iPhone 11 Pro Max Battery Giving Out? Restore It Today.
Walk-in service at Braybrook and Spotswood. iPhone 11 Pro Max battery replacement from $99 with a lifetime warranty.