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iPhone 11 Pro Max Battery Replacement — OEM vs Compatible
Replacing your iPhone 11 Pro Max battery takes about 15–20 minutes and restores your phone's full-day charge. Every battery below is tested before shipping and comes with a lifetime warranty.
Quality
What It Is
Best For
OEM
Manufacturer-grade cell, original capacity
Matching factory specs exactly
Compatible
Third-party cell, same capacity rating
Budget-friendly replacement
Both options deliver the same rated capacity. The OEM battery uses the same cell manufacturer as the original, while the Compatible option is a reliable third-party alternative at a lower price.
🛠 Need tools? Our Complete Opening & Repair Toolkit has everything you need for this repair — pentalobe screwdriver, suction cup, spudger, and more.
Why Unlockr?
Ships from Canada — no customs fees, no border delays
Lifetime warranty on every battery
Same-day dispatch on orders before 5 PM ET
Tested before shipping — capacity verification, charge cycle check
Common Questions
Is this compatible with my iPhone 11 Pro Max?
Yes — every battery on this page fits the iPhone 11 Pro Max (models A2161, A2220, A2218, {'value': 'A2161', 'region': 'CA', 'source': 'apple_support', 'regions_detail': ['Canada', 'United States']}, {'value': 'A2220', 'region': 'global', 'source': 'apple_support', 'regions_detail': ['China mainland', 'Hong Kong', 'Macao']}, {'value': 'A2218', 'region': 'global', 'source': 'apple_support', 'regions_detail': ['other countries and regions']}).
Do I need special tools?
You will need a pentalobe screwdriver, suction cup, and a plastic spudger. Our repair tool kit includes everything for this job.
Will this affect my battery health indicator?
The battery health percentage may show as unavailable after replacement. This is normal — it does not affect performance or actual capacity.
