Apple Watch on Wrist
Apple Watch on Wrist

If your Apple Watch battery doesn’t last as long between charges, you can replace it yourself or get professional service for less than $100. Replacing the battery requires a plastic opening tool, a specific screwdriver set, and a clean, well-lit work area. Be careful not to damage other internal components, especially the fragile connector linking the battery to the electronics. Source replacement batteries responsibly, connect and secure the new battery following proper guidelines, and reassemble the watch in reverse order for water resistance.

Is It Worth Replacing the Battery Yourself?

Replacing your Apple Watch battery yourself can be a way to save some money, but it’s important to weigh the risks and consider your technical ability. Here’s what you should know before diving in.

Difficulty: Battery replacement on an Apple Watch is considered moderately difficult. Small components and delicate flex cables require careful handling.

Warranty: Opening your Apple Watch, even to replace the battery, will void any remaining warranty.

Risk of damage: If you’re not comfortable with delicate electronics, there’s a risk of damaging other components in your watch during the process.

Cost: While a replacement battery itself might be inexpensive, you’ll need specialized tools that can add to the overall cost.

If you decide to proceed, here’s what you’ll need:


Tri-point ScrewdriverRemoves the back cover of the Apple Watch
SpudgerDisconnects delicate flex cables and removes the battery
Plastic Opening Tools (or Pry Tool)Separates the screen from the body of the watch
Heat Gun or Hair DryerSoftens the adhesive holding the screen and battery
Replacement BatteryA new battery specifically designed for your Apple Watch model
AdhesiveSecures the new battery in place


1. Preparation

  • Power down: Turn off your Apple Watch entirely.
  • Remove bands: Detach the watch bands.
  • Gather tools: Make sure you have everything from the tools list above.

2. Opening the Watch

  • Apply heat: Use a heat gun or hair dryer to gently warm the screen’s edges. This loosens the adhesive.
  • Lift the screen: Insert a plastic opening tool into the gap between the screen and body. Be very careful not to insert too deeply and damage the flex cables.
  • Disconnect flex cables: Gently disconnect any flex cables attaching the screen to the watch.
Change battery on Apple Watch
Change battery on Apple Watch

3. Removing the Old Battery

  • Locate battery Find the battery inside the watch body.
  • Disconnect battery: Using the spudger, carefully disconnect the battery cable from the logic board.
  • Remove battery: Gently pry the battery out. If the adhesive is strong, apply a little heat to soften it.

4. Installing the New Battery

  • Prepare adhesive: Apply new adhesive to the battery compartment if it’s not pre-applied to your replacement battery.
  • Place battery: Position the new battery correctly.
  • Connect battery: Reconnect the battery cable to the logic board.

5. Reassembly

  • Reconnect display: Carefully reconnect the screen’s flex cables.
  • Press screen down: Apply gentle pressure around the edges of the screen to adhere it back to the body.
  • Secure back cover: Reinstall the back cover using the tri-point screwdriver.
Important Notes:
  • Model-specific instructions: Since there are variations across Apple Watch models, consider finding a guide specific to yours. Search online for step-by-step videos or instructions.
  • Proceed with caution: If you have any doubts about your skills, it might be better to take your Apple Watch to a professional repair shop.

Preparing for Battery Replacement

When you replace the battery of an Apple Watch, it’s important to work safely and be well-prepared. Having the right tools and understanding the initial steps will set the stage for a successful replacement.

Safety Precautions

Before beginning, one should protect their eyes with safety glasses. Batteries can sometimes leak or puncture causing harm. Heat is often used to loosen adhesive during the replacement process. One must handle tools like heat guns or hair dryers with care to avoid burns.

Required Tools and Materials

To start, gather these essential tools:

  • Pry tool or spudger: For gently prying open the watch case.
  • Opening pick: To slice through adhesive.
  • Heat source: An iOpener, heat gun, or hair dryer to soften adhesive.
  • Heavy gloves: To protect hands from heat.
  • New battery: Specific to the Apple Watch model.
  • Adhesive: For resealing the watch case.

Maintaining an organized workspace with these tools within reach will simplify the process.

Initial Steps

First, power down the Apple Watch to avoid short circuits. Apply heat around the edges of the watch face carefully to melt the adhesive. Using the opening pick, gently separate the screen from the case. Work slowly and use the prying tool as needed to keep components safe.

Remember, replacing a battery can be a delicate task, and following each step with attention will help protect the watch and ensure the battery is replaced correctly.

Battery Replacement Process

The process of changing an Apple Watch battery involves careful removal of the old battery and the precise installation of a new one. Testing ensures the watch runs as expected.

Removing the Battery

First, power off the watch. Next, gently heat the edges of the screen to weaken the adhesive. A careful approach helps protect the delicate display cables. Pry the battery out with a plastic tool. Always check for a swollen or deformed battery. In such cases, replace the battery to avoid damage to the motherboard.

Installing the New Battery

Connect the new battery using the original connector. This step needs a steady hand. Align the new battery and press firmly to secure it. GPS-only and Cellular/LTE versions follow similar steps. Apply replacement adhesive to ensure a firm hold.

Reassembly and Testing

Reattach the screen with the same caution used during removal. The battery connector bracket should be secure. Turn on the watch and check for signs of life. Look at the battery service menu to confirm the battery’s maximum capacity. A full test cycle will reveal any issues with battery drain.

This process requires patience and attention to detail for the best results.

Understanding DIY Apple Watch Battery Replacement

Replacing the battery in an Apple Watch might seem daunting, but it’s a task that a careful individual can complete with the right tools and instructions. An Apple Watch’s battery, like all rechargeable batteries, has a limited lifespan. A new battery can bring fresh life to the device.

Firstly, safety is paramount. If a battery is swollen, it indicates a potential hazard, and one needs to take extra precautions.

It’s essential to understand that while DIY repair kits are available, the process requires patience and precision. Various models may differ slightly in battery replacement steps. Videos and detailed guides offer visual aid; however, one should take care not to rush and risk damaging their Apple Watch.

When replacing the battery, ensure the replacement part is compatible with the particular Apple Watch model. This can prevent potential issues post-repair. The benefit of a DIY approach includes saving on repair costs and time without needing to send the watch away for servicing. However, if one is not confident in their DIY skills, it may be best to seek professional assistance.

Identifying the Right Replacement Battery

Before embarking on a DIY Apple Watch battery replacement, it’s crucial to select the correct battery. This ensures compatibility and optimal performance of your timepiece after the change.

Compatibility with Apple Watch Models

For every Apple Watch model, there is a specific battery designed to work seamlessly with it. Using the wrong replacement battery could lead to poor performance or even damage. Here is how you can identify the right replacement battery:

  • Check the Model Number: On the back of your Apple Watch, you’ll find the model number which you can match with a compatible battery.
  • Refer to the Official Website: Apple provides detailed information on battery compatibility for different watch models.
  • Consider Size Differences: For example, the 40mm and 44mm Apple Watch Series 6 each have their own unique battery.
  • Verify with the IMEI Number: For cellular models, the IMEI number can be used to ensure the battery is a perfect match for your watch.

To successfully identify which battery you need:

  1. Turn the Apple Watch around and locate the model number on the back.
  2. Cross-reference this number with available batteries, ensuring it matches the listed compatibility.
  3. For cellular models, locate the IMEI number in the settings and use it to verify the battery choice.
  4. Always choose a trustworthy seller that guarantees the quality and compatibility of the replacement battery.

By attentively following these pointers, you can confidently select the right replacement battery to breathe new life into your Apple Watch.

Gathering Necessary Tools and Materials

Before attempting to replace the battery in an Apple Watch, it is important to have the correct tools and safety equipment at hand. This ensures the process goes smoothly and helps to avoid any potential damage to the device.

List of Tools Required

To precede with the battery replacement for your Apple Watch, you’ll need the following items:

  • Precision Screwdrivers: A set of small screwdrivers, typically Phillips #000 and Y000 types, to handle tiny screws.
  • Opening Tool: These can range from plastic picks to more specialized tools designed to safely pry open the watch casing.
  • Spudger: A spudger is a prying tool, often made of plastic, nylon, or metal, used to disconnect connectors and remove thermal adhesive.
  • Heat Gun or iOpener: Used to gently heat the adhesive that holds the screen in place, making it easier to open. An iOpener is a safer alternative as it delivers heat in a controlled manner.
  • Curved Blade: Helps in carefully lifting the screen or cutting adhesive.
  • Isopropyl Alcohol: Applied sparingly to loosen adhesive.
Apple Watch Battery dying
Apple Watch Battery dying

Safety Equipment

Safety should never be overlooked. Here’s what you need:

  • Eye Protection: Safety goggles to shield eyes from any possible debris or accidental spills of chemicals.
  • Gloves: To protect your hands especially when using isopropyl alcohol or dealing with a potentially swollen battery.

Initial Preparations Before Starting

Apple Watch Battery Replacement
Apple Watch Battery Replacement

Embarking on a DIY Apple Watch battery replacement requires careful planning and mindful setup. A successful outcome hinges on establishing a safe workspace and understanding the precautions necessary when handling a new battery.

Workspace Setup

Before diving into the battery replacement process, a clear and organized workspace is critical. Start by selecting a flat, clean surface in a well-lit area to avoid misplacing small components and to offer clear visibility. Have all the necessary tools at hand, such as opening picks, a spudger, tweezers, a small screwdriver, and, optionally, a new adhesive gasket.

  • Tools and materials needed:
    • Opening picks
    • Spudger
    • Tweezers
    • Small screwdriver
    • Replacement battery
    • New adhesive gasket (optional)
  • Ensure adequate lighting
  • Clean, flat surface
  • Layout tools for easy access

Battery Precautions

Handling a battery, especially one from an intricate device like the Apple Watch, demands following specific safety guidelines. Before proceeding, make sure to power off the Apple Watch to reduce any risk of short-circuiting. It’s advised to handle the battery with care, avoiding puncturing or bending it to prevent potential damage or injury.

  • Turn off the Apple Watch
  • Handle the battery with care
    • Do not bend or puncture
  • Inspect the battery for any visible signs of wear or deformation before replacement

Following these steps thoroughly is essential for a smooth and safe battery replacement journey.

Opening the Apple Watch

Replacing the battery of an Apple Watch is a delicate process. One must carefully open the device to ensure no damage to the internal components. Precision and patience are crucial throughout the entire opening procedure.

Detaching the Watch Band


  1. Turn the Apple Watch over.
  2. Press the small button found on the back of the Watch to release the band.
  3. Slide the band out of the Watch’s groove to detach it.

Note: Some bands may have additional latches or buttons.

Removing the Screen

First, make sure the Apple Watch is powered off. To gently lift the screen:

  1. Use a heat source to loosen the adhesive under the watch face.
  2. Position a suction cup on the screen.
  3. Apply steady, firm force to create a small opening between the screen and the watch body.
  4. Carefully insert an opening pick into the gap.
  5. Slide the pick around the edges to cut through the adhesive.
  6. As the screen lifts, be cautious of the display’s cables connecting it to the board.

Caution: Do not force open the screen as it may damage the Force Touch sensor or the screen itself. If resistance is met, apply more heat to soften the adhesive.

Reminder: Keep track of all screws and parts removed to ensure a smooth reassembly process later.

Removing the Old Battery

When it’s time to change the battery in an Apple Watch, it’s crucial to remove the old one carefully to avoid any damage. Key steps include safely disconnecting the battery and using the right techniques to remove it from the adhesive that keeps it in place.

Disconnecting the Battery

Before attempting to remove the Apple Watch battery, one must ensure it is properly disconnected to prevent shorting any components. They will need a set of small screwdrivers specifically designed for electronics. Using a tri-point screwdriver, the user gently unscrews the battery connector from the watch’s logic board. It’s essential to keep track of the screws due to their tiny size.

Battery Removal Tips

With the battery disconnected, attention turns to lifting it out. This process often involves dealing with old adhesive that secures the battery. A spudger or a similar plastic tool can be used to gently pry the battery away from its compartment. The user must be careful not to puncture or bend the battery, as this can be dangerous.

  • Old Adhesive: If the battery doesn’t come out easily, additional tools like a Q-tip or cleaning pad soaked in isopropyl alcohol can help loosen the adhesive.
  • Tools: Tweezers can be handy to peel off any remaining adhesive and ensure a clean working area for the new battery.

By following these specific steps, one can successfully remove the battery without damaging their Apple Watch, readying it for a fresh replacement.

Installing the New Battery

Installing a new battery in an Apple Watch requires careful positioning and a steady hand. Precision is key to ensure longevity and functionality of your device post-repair.

Securing the Battery in Position

Once you have removed the old battery, it’s time to place the new battery into your Apple Watch. First, you need to prepare the new adhesive. This adhesive will keep the battery firmly in place. Peel off the backing on the adhesive and carefully align it within the battery compartment. Now, take the new battery and position it exactly where the old one was. It is crucial to ensure the battery is not misaligned as this can affect the watch’s performance.

Reassembly and Resealing

With the new battery secured, begin reassembling your Apple Watch in reverse order from which you took it apart. This usually involves reattaching any cables disconnected during the removal process and ensuring that they snap firmly back into place. Once everything is connected, reapply the watch screen. Make sure to align it correctly before pressing down to seal. It’s important for the resealing process to be done carefully to maintain the water resistance of the watch. If your kit came with a new adhesive gasket, use it to replace the old one to ensure the best seal.

Post-Installation Procedures

After installing a new battery in an Apple Watch, it’s important to ensure everything works as it should. This includes testing the watch’s functions and calibrating the battery for accurate performance.

Testing the Apple Watch

Once the battery has been replaced, power on the Apple Watch to test its functionality. He or she should check that the screen responds to touch and that apps open without delay. It’s important to verify that the watch is capable of connecting to its paired iPhone and that all features are operating smoothly.

  • Screen Response: Ensure the display reacts to swipes and taps.
  • App Performance: Open various apps to confirm they run correctly.
  • Connectivity: Check the watch’s connection to the paired iPhone.

Battery Calibration

Calibrating the new battery helps maintain its power and longevity. To begin, charge the Apple Watch to 100% without interruption. After that, he or she should use the watch until it shuts down due to a low battery. Finally, charge it uninterrupted to 100% again.

  1. First Charge: Charge to 100%.
  2. Discharge: Use until the watch powers off.
  3. Final Charge: Charge back to 100% without pause.

Calibrating the battery ensures the Apple Watch accurately reflects battery power, supporting optimal performance of apps and features. Remember, regular calibration can help maintain the watch’s battery health over time

Frequently Asked Questions

Replacing the battery in an Apple Watch can seem daunting, but with the right tools and guidance, it’s a task that you can take on with confidence. Here we’ll cover some common questions to help you get started.

How do you replace the battery in an Apple Watch Series 7 yourself?

To replace the battery in an Apple Watch Series 7, carefully open the case, disconnect the old battery, and install the new one. It’s critical to handle the components with care to avoid damage.

What tools are needed for a DIY battery replacement in an Apple Watch Series 6?

Essential tools for a DIY battery replacement include a set of precision screwdrivers, a pry tool or opening pick, and a replacement battery compatible with the Apple Watch Series 6.

Is it possible to change the battery in an Apple Watch Series 5 without professional help?

Yes, changing the battery in an Apple Watch Series 5 is possible at home if you have the necessary tools and have followed detailed instructions to prevent any mishaps during the process.

What are the risks of performing a battery replacement on an Apple Watch Series 4 on your own?

Performing a battery replacement on your own poses risks such as accidentally damaging the screen or internal components, voiding the warranty, or compromising the water resistance of the device.

Where can I find instructions for a DIY battery replacement for an Apple Watch Series 2?

Instructions for a DIY battery replacement can often be found in online repair guides or video tutorials that are specifically made for the Apple Watch Series 2.

What is the average cost associated with DIY battery replacement for various Apple Watch models?

The cost for DIY battery replacement varies based on the model but typically includes the price of the replacement battery and any tools you may need to purchase, usually ranging from $20 to $70.

What is the process for replacing the battery in an Apple Watch Series 3?

To replace the battery in an Apple Watch Series 3, one must carefully open the watch case, disconnect the old battery, and install a new one. This task is delicate and requires specific tools.

Where can I get a battery replacement for my Apple Watch?

Battery replacements can be obtained through Apple Support or a certified repair shop. Owners should ensure the service provider is reputable to avoid further issues.

How much is typically charged for an Apple Watch battery replacement?

The cost for an Apple Watch battery replacement varies. If out of warranty, Apple charges a fee unless covered by AppleCare+. Price details are available on the Apple website or by inquiring with Apple Support.

What are the indications that my Apple Watch battery may need to be replaced?

Signs that a replacement is needed include reduced battery life, the battery not holding a charge, or physical changes like swelling.

Is it cost-effective to replace the battery of an Apple Watch?

It can be cost-effective if the watch is relatively new and the cost is lower than purchasing a new device. The decision depends on the watch model and its condition.

What steps should be taken to replace the battery in an Apple Watch Series 5?

Replacing the battery in an Apple Watch Series 5 follows a similar process to the Series 3. After ensuring the watch is powered down, the screen is carefully removed to access the battery, which is then replaced with caution. It’s a sensitive process and might be best handled by a professional.

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