Are you also struggling with your iPhone 17 Pro's battery life? It's supposed to be a flagship phone, but it runs low in the afternoon. You need to carry a power bank whenever you go out, even charging while on the phone. Many users experience similar issues, which are a natural phenomenon caused by "battery aging." As the number of charge and discharge cycles increases, lithium-ion batteries gradually degrade, ultimately manifesting as:
· Significantly reduced battery life;
· Slower or no charging;
· Battery health status displays "Repair" or "Capacity Significantly Reduced".
So what's the solution? Go to the official after-sales service? Find a third-party repair? Or... just do it yourself? The answer is: "You can replace the battery yourself, and it's not complicated."
In this article, China Phonefix will walk you through the "iPhone 17 Pro battery replacement process" step by step. Even if you've never disassembled a phone before, following the steps will make it easy. Below are detailed instructions and precautions.
I. Before You Begin: Understand the Risks and Gather the Tools
1. Why Choose DIY?
· Cost savings: Apple's official battery replacement costs between 799 and 999 yuan, while replacing it yourself costs less than half that.
· Flexible schedules: No need to wait for a repair appointment; you can do it yourself anytime.
· Increased control: Familiarize yourself with the internal structure of your device, allowing you to perform more maintenance yourself in the future.
Of course, it's important to note that disassembling the device will void the official warranty. If your device is still under warranty or covered by AppleCare+, it's recommended to contact an official repair service first.
2. Safety Precautions
· Always turn off your phone: Avoid short circuits caused by disassembling it while it's powered on.
· Discharge the battery below 25%: Reduce the risk of fire from puncturing the battery.
· Avoid metal tools: Avoid scratching the battery; use plastic tools.
· Work in a dry, bright environment: A static-free, moisture-free work surface is ideal.
3. Required Tools
· Suction cup tool: Used to lift the display.
· Pentalobe P2 screwdriver: Remove the two Pentalobe screws on the bottom.
· Phillips screwdriver: Remove the internal metal shield.
· Non-conductive spudger: Disconnect the ribbon cables and battery.
· Plastic tweezers: Handle ribbon cables and small parts.
· Opening pick or hot air gun: Separate the screen adhesive.
· Isopropyl alcohol (90% or higher): Dissolve old battery adhesive.
· 9V battery and clip (if using inductive adhesive): Activate heat-activated adhesive.
· New iPhone battery and double-sided tape/battery adhesive strips: Replace all materials.
II. Getting Started: iPhone 17 Pro Battery Replacement Process
The following are step-by-step instructions. Please follow them in order to avoid skipping steps.
Step 1: Power Off and Screen Removal
1. Completely turn off the phone: Press and hold the power button and slide the device to turn off.
2. Remove bottom screws: Use a Pentalobe screwdriver to remove the two Pentalobe screws on either side of the Lightning connector.
3. Heat the edge of the screen (optional): Use a hot air gun or hair dryer to heat the edge of the phone on low heat for about 30 seconds to help soften the adhesive.
4. Lift the screen with a suction tool: Place a suction cup under the screen (near the home button) and gently lift to create a gap.
5. Insert an opening pick: Insert the pick into the gap and slowly move it along the edge of the screen, releasing the clips one by one.
6. Open the screen like the back of a book: Open the iPhone from the right side, like a book, but be careful not to completely lift it off, as there are still cables connecting it to the logic board.
Step 2: Disconnect the battery and display cables
1. Locate the battery connector: It's usually located on the bottom half of the logic board, covered by a metal shield.
2. Use a Phillips screwdriver to remove the metal shield: Be careful to avoid mixing up the screws.
3. Use a non-conductive spudger to disconnect the battery connector: Gently pry open the connector, making sure not to damage other iPhone components.
4. Disconnect the display cables (optional): To prevent accidental contact, temporarily disconnect the two display cables for added safety.
Step 3: Remove the Old Battery
This step has two options depending on the device's adhesive bonding method:
Case 1: Device Using Induction Adhesive (Heat-Based Adhesive)
1. Flip the silver tab underneath the battery to expose the metal contact points.
2. Connect the 9V Battery Alligator Clip to the clips:
· The black clip contacts the case (metal ground);
· The red clip contacts the heating point on the battery.
3. Keep the clips connected for about 90 seconds, allowing the heat on the bottom of the battery to soften the adhesive.
4. Use a plastic spudger to gently pry up from the edge of the battery, being careful not to insert too deeply to avoid damaging the logic board or battery.
Case 2: Using Regular Adhesive or Stretchable Adhesive Strips
1. Look for the stretchable adhesive strip at the bottom, which usually has a clear plastic tip.
2. Pull the strip out slowly and vertically, avoiding any angles that could cause it to break.
3. If it breaks, treat with isopropyl alcohol:
· Apply a few drops of isopropyl alcohol to the edges of the battery;
· Wait 1-2 minutes;
· Use a plastic opening pick to gently separate the battery;
4. Gently remove the old battery, being careful not to bend or puncture it excessively.
Step 4: Clean and Install the New Battery
1. Clean the battery compartment with isopropyl alcohol, ensuring there is no residual glue or debris.
2. Prepare the new iPhone battery: Verify that the battery model and connector match.
3. Install new double-sided adhesive strips or battery tape: Apply to both sides of the back of the new battery, avoiding the center area.
4. Gently place the new battery into the battery compartment without applying pressure.
Step 5: Reconnect and Test the New Battery
1. Connect the battery connector to the iPhone motherboard and gently press the connector shut with a non-conductive spudger.
2. (Optional) Connect the display connector, replace the metal shield, and tighten the screws.
3. Test by pressing the power button:
· Does it turn on normally?
· Is the battery level recognized?
· Does it charge when connected to a charger?
4. Confirm everything is normal and proceed to the next step.
Step 6: Reassembling the iPhone
1. Close the screen:
· Align the screen clips with the case from the top;
· Gradually press down until the edges are fully closed;
2. Install the two Pentalobe screws at the bottom to secure the screen.
3. Turn the phone back on and confirm that everything is working correctly.
III. Post-Battery Replacement Precautions
1. Charge the battery to 100% for the first time, then use it to around 10% before recharging. This helps calibrate the battery.
2. Avoid excessive charging during the first few times; cycle between 20% and 80%.
3. Avoid prolonged overheating during charging. Use an original or certified charger.
4. Regularly check the maximum capacity and peak performance in "Battery Health" to track the performance of your new battery.
Congratulations! You have successfully replaced the battery in your iPhone 17 Pro. With this detailed DIY guide, you can replace the battery yourself and restore your device's battery life, even without any repair experience. Of course, while the process isn't complicated, if you're not confident or worried about damaging your device, you can always seek professional help. If you're worried that the text description isn't enough to help you understand the entire repair process, here's a video reference for replacing the iPhone 17 Pro battery:
