iPhone Battery Replacement Guide - Hands-on with REPART

iPhone Battery Replacement Guide - Hands-on with REPART

Typically, iPhones are cycled 500-600 times, and their battery life varies depending on usage habits.

As your iPhone's battery gradually wears down, you may experience more frequent recharging, unexpected shutdowns, and a decrease in overall performance.

Apple recommends replacing your battery when iOS shows that battery performance is below 80%.

In this comprehensive guide, we'll use the iPhone 11 Pro Max as an example to walk you through the exact steps of replacing your battery with a high-quality REPART battery.

Step-by-step Guide

Step 1: Check Battery Health First, navigate to your phone's settings and locate "Battery Health" to assess your battery's condition. If your battery health is low, it's time for a replacement. Before proceeding, long-press the power button to turn off your phone.

Step 2: Detach and Remove the Screen

  • Unscrew the bottom screws using a pentalobe screwdriver, ensuring you keep track of them.
  • Use a heating pad at approximately 90°C to soften the screen edge glue for 2-3 minutes.
  • Secure the screen in place with a clamp, and use suction cups to gently separate the screen from the phone.
  • Carefully lift the screen and disconnect the battery.

Step 3: Remove the Old Battery and Adhesive Residue

  • Unscrew the battery protection
  • Gently disconnect the battery and remove the battery protection ironshield.
  • Use tweezers and a littlealcohol to remove the battery adhesive residue.

Step 4: Install the REPART Battery

  • Take out the new REPART battery and remove the protective film from the adhesive.
  • Attach the adhesive to the battery and press firmly.
  • Install the new battery, connect well with the battery connector 
  • Reassemble the charging port and fix the shielding plate 
  • Reassemble the screen, ensuring all connectors are secure.

Step 5: Power On and Test the Battery Function

  • Turn onthe phone and perform battery-related tests, including wired and wireless charging.
  • As we preserved the original waterproof adhesive during screen removal, there's no need to install additional waterproof adhesive.


REPART battery replacement is complete. The above is the whole process of replacing the REPART battery. The specific operation can be viewed by clicking the video below.

For a visual walk through of this process, watch our video tutorial linked below.

At REPART, we're dedicated to delivering top-quality products and excellent service.

Our commitment to using high-quality materials and strict quality control ensures that you receive industry-standard parts, contributing to a low-carbon and environmentally friendly world.

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