iPhone 12 Pro Max Battery Replacement

The iPhone 12 Pro Max is built with a 3,687 mAh high-capacity lithium-ion battery designed to deliver premium, long-lasting performance. If your phone’s battery drains quickly, shuts off unexpectedly, or shows a “Service Recommended” notice, a professional replacement restores full endurance, stability, and long-term reliability.

1-Year Battery Warranty

Battery Options for iPhone 12 Pro Max

The original battery capacity of the iPhone 12 Pro Max is 3,687 mAh. We offer industry-trusted Amsentrix aftermarket batteries as well as genuine OEM Apple batteries, sourced directly through Mobilesentrix — one of the largest authorized Apple parts distributors in the United States.

Amsentrix – Standard Capacity (3,687 mAh)

  • Closest match to original Apple battery performance
  • Stable daily usage and excellent reliability
  • Certified high-quality lithium cells
  • Manufactured by Mobilesentrix

Warranty: 1 Year
Repair Time: 40–60 minutes

Amsentrix – High Capacity (+15% / +20%)

  • Longer screen-on time
  • Improved thermal stability for heavy users
  • Perfect for navigation, social media, video, and gaming
  • Maximum endurance for all-day activity

Warranty: 1 Year
Repair Time: 40–60 minutes

OEM Apple Battery (3,687 mAh)

  • Genuine Apple-grade lithium-ion chemistry
  • Perfect calibration with iOS power management
  • Accurate battery health reporting
  • Sourced through Mobilesentrix (Apple distributor)

Warranty: 1 Year
Repair Time: 40–60 minutes

Our Battery Quality Standards

Low-grade batteries can cause overheating, swelling, inaccurate battery health readings, and unexpected shutdowns. One Fix Tech installs only certified, high-stability batteries designed to meet or exceed Apple safety requirements.

  • Amsentrix Premium: Best aftermarket performance in the industry.
  • Normal & High Capacity Options: For every type of user.
  • OEM Batteries: True Apple-grade replacements.
  • 1-Year Warranty: Covers swelling, early failure, and defects.

Essential Battery Safety & Usage Tips

  • Avoid constant “quick top-ups” — they stress the internal chemistry.
  • Swelling can push up the screen and damage internal components.
  • Daily overnight charging accelerates battery wear.
  • Use trusted charger brands: Apple, Anker, Belkin, Mophie.
  • Charging port cleaning is always free.
  • Poor-quality cables can damage the charging IC and battery health.

Why Choose One Fix Tech?

  • Premium Amsentrix & OEM Apple batteries only
  • 1-year warranty included
  • Professional and safe installation
  • No recycled or low-quality batteries
  • Free charging port cleaning
  • Apple-verified Mobilesentrix supply chain

Need a Stronger Battery?

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