You cannot change the battery yourself — Apple or an authorized repair shop must do it

Apple Watch batteries are sealed inside the case and require specialized tools to access. Opening the watch yourself will damage the water resistance seal and void your warranty. Your options are to visit an Apple Store, use Apple's mail-in repair service, or take the watch to an authorized third-party repair shop.

The cost varies by model. For most watches, battery replacement runs between $70 and $100 at an Apple Store, plus tax. Some authorized repair shops charge less, but prices differ by location and shop. Mail-in service through Apple typically takes five to seven business days, not counting shipping time.

Key Takeaways

  • Apple Watch batteries cannot be replaced by the user — the case is sealed and requires professional tools to open safely.
  • An Apple Store, Apple's mail-in repair service, or an authorized third-party repair shop can replace the battery for $70 to $100 in most cases.
  • Battery replacement at an Apple Store usually takes one to two hours, while mail-in service takes five to seven business days plus shipping.
  • If your watch is still under warranty or covered by AppleCare+, the repair cost may be reduced or covered entirely.

Taking your watch to an Apple Store

Visit apple.com/retail or open the Apple Store app and select your nearest location. Tap "Book a Repair" and choose the date and time that works for you. You can also walk in without an appointment, but wait times vary — booking ahead is faster.

Bring your Apple Watch and the charger. The technician will run a diagnostic to confirm the battery is the problem, then replace it while you wait. The whole process usually takes one to two hours. You will pay at the register before you leave.

Using Apple's mail-in repair service

Go to support.apple.com/repair and select "Apple Watch" as the device. Choose "Battery" as the issue. You will be asked for your watch model, serial number, and what you are experiencing. Apple will give you a shipping label and instructions.

Pack the watch carefully and drop it off at a UPS location or other carrier specified in your label. Apple receives it, runs diagnostics, replaces the battery, and ships it back. The whole cycle takes about two weeks including shipping both ways. You will receive an email with tracking information at each step.

Finding an authorized third-party repair shop

Visit apple.com/retail and search for "service providers" in your area. These are independent shops certified by Apple to repair watches. Call ahead to confirm they have the battery in stock for your model and ask their price — it often undercuts Apple Store pricing.

Authorized shops use genuine Apple parts and follow Apple's repair standards, so your warranty remains valid. Turnaround time is usually the same as an Apple Store — one to two hours — but some shops may take longer if they are busy. Ask when you call.

What to do if your watch is under warranty or AppleCare+

If you bought your watch within the last year, it is covered by Apple's one-year limited warranty. Battery replacement is not included unless the battery is defective — meaning it holds less than 80 percent of its original capacity and you have not physically damaged the watch.

AppleCare+ for Apple Watch covers battery replacement at no cost after you pay the service fee, which is usually $0 for battery issues. Check your coverage by going to support.apple.com, signing in with your Apple ID, and looking up your devices. If you have AppleCare+, mention it when you book your repair — the technician will explore the discount automatically.

How long an Apple Watch battery lasts before replacement

Apple Watch batteries are designed to hold at least 80 percent of their original capacity after 1,000 complete charge cycles. In real use, this typically means two to three years before the battery noticeably drains faster. Some users see degradation sooner if they charge the watch every single day or expose it to extreme heat.

You will notice the battery is failing when the watch shuts down at 20 or 30 percent charge, or when it no longer lasts a full day of normal use. These are signs the battery needs replacement. Running a diagnostic at an Apple Store will confirm whether the battery is the cause.

Preparing your watch before you take it in for repair

Back up your watch data by syncing it with your iPhone one last time. Open the Watch app on your iPhone, go to General, and tap "Reset." Choose "Erase Apple Watch Content and Settings." This removes your personal data from the device so the repair shop does not have access to it.

Bring your watch and charger to the appointment. If you have AppleCare+, bring your Apple ID and password so the technician can verify your coverage. Write down your watch model and serial number in case the shop needs it — you can find both in the Watch app under General > About.

Frequently Asked Questions

Can I replace the battery myself with a kit from Amazon or eBay?

No. Opening the watch yourself will break the water resistance seal, and the watch will not be repairable afterward. Apple Watch cases are glued shut and require a heat press and specialized tools to open safely. Any damage you cause voids the warranty permanently.

How much does battery replacement cost if I do not have AppleCare+?

Battery replacement at an Apple Store costs between $70 and $100 depending on your watch model, plus tax. Authorized third-party shops often charge $50 to $80. Prices vary by location and shop, so call ahead to confirm the exact cost for your model.

What if my watch is water-damaged or cracked — can I still get the battery replaced?

Yes, but the repair shop will assess the damage first. If the case is cracked or the seal is broken, they may recommend a full replacement instead of just a battery swap. Ask them to give you a quote for both options before they proceed.

How do I know if my battery is actually bad or if something else is draining it?

A diagnostic at an Apple Store will tell you. The technician runs a test that shows the battery's current capacity and health. If it is below 80 percent, replacement is the fix. If the battery is fine, the problem is usually a background app or a software issue that a reset can solve.

Can I use my watch while I wait for mail-in repair?

No — you have to send the watch to Apple. If you need a backup device, consider borrowing a friend's watch or waiting until the repair is done. Mail-in service takes about two weeks total, so plan ahead if your watch is your main fitness tracker or payment method.