Yes, Apple Watch batteries can be replaced, but Apple handles the repair, not you

You cannot open an Apple Watch yourself and swap the battery. The device is sealed, and the battery is glued in place. Apple offers battery replacement through their repair service, which costs between $79 and $99 depending on your watch model, plus $6.95 shipping if you mail it in. The repair typically takes 5 to 7 business days once Apple receives your watch.

If your watch is still under warranty or covered by AppleCare+, battery replacement is free if the battery has degraded to 80% capacity or lower. AppleCare+ also covers accidental damage, which can be relevant if a battery issue stems from water damage or a drop. Without coverage, you pay the full service fee.

The alternative is to visit an Apple Store in person, where the repair can sometimes be completed the same day or within a few hours, though availability varies by location. You can also use an Apple Authorized Service Provider, which is a third-party repair shop certified by Apple — these exist in many areas where Apple Stores are not nearby.

Key Takeaways

  • Apple Watch batteries are sealed inside the device and cannot be replaced by the user; only Apple or an Apple Authorized Service Provider can do the replacement.
  • Battery replacement costs $79 to $99 plus shipping if you mail the watch to Apple, or you can visit an Apple Store or Authorized Service Provider for potentially faster service.
  • If your watch is under AppleCare+, battery replacement is free when the battery has degraded to 80% capacity or lower.
  • The repair process takes 5 to 7 business days by mail, but in-person service at an Apple Store may be faster depending on current demand.
  • Before paying for a replacement, check whether your battery degradation is normal for your watch's age or a sign of a defect covered under warranty.

When to replace your Apple Watch battery

Apple Watch batteries degrade over time. A new battery holds a full charge for roughly 18 hours of typical use. After two to three years, you might notice the watch drains faster — this is normal aging, not a defect. If your watch dies by mid-afternoon when it used to last all day, or if it shuts down at 20% battery remaining, replacement is worth considering.

Check your battery health first. Go to Settings > Battery > Battery Health on your watch. If the maximum capacity shows 80% or lower, Apple considers the battery degraded. If it shows 90% or higher and the watch still drains quickly, the problem may be a specific app or background activity, not the battery itself. Restarting the watch or checking which apps are running in the background can sometimes solve the issue without a replacement.

If your watch is less than one year old and the battery capacity has dropped below 80%, contact Apple Support before paying for a repair. This may indicate a manufacturing defect covered under the standard one-year warranty.

How to start a battery replacement through Apple

Visit apple.com/support and select your Apple Watch model. Choose "Battery and charging" as the issue, then select "Battery replacement" from the options. Apple will ask you to describe the problem and confirm your device details. You can then choose to mail in your watch or schedule an appointment at an Apple Store.

If you choose to mail it in, Apple will email you a prepaid shipping label. Pack the watch securely — use a padded envelope or small box — and drop it off at any carrier location that accepts Apple's label. Once Apple receives it, they will diagnose the battery and send you an estimate if the repair cost is higher than expected, though this is rare for battery-only replacements. The watch ships back to you with a tracking number.

For in-person service, use the Apple Store locator to find the nearest location, then book a Genius Bar appointment through the Apple Support app or website. Bring your watch and the charger. The technician will confirm the battery issue and discuss timing — same-day service is possible but not may provide, especially during busy periods.

Finding an Apple Authorized Service Provider

If no Apple Store is nearby, search for Apple Authorized Service Providers in your area. Visit apple.com/support/repair and enter your zip code. The search shows both Apple Stores and Authorized Service Providers. These third-party shops are certified to perform the same repairs as Apple and use genuine Apple parts.

Authorized Service Providers often have shorter wait times than Apple Stores because they handle fewer customers. Call ahead to confirm they stock the battery for your specific watch model — older models may require ordering the part, which adds a few days. Pricing is the same as Apple's official service: $79 to $99 for the battery replacement.

Ask whether they offer same-day service or if you need to leave the watch for a few days. Some providers can complete battery replacements in an hour or two, while others may need to order the part or have a backlog.

What happens to your data during battery replacement

Your data stays on the watch during battery replacement. Apple does not erase the device when replacing the battery — they remove the old battery, install the new one, and return the watch with all your apps, settings, and health data intact. You do not need to back anything up or re-pair the watch to your iPhone.

The only exception is if Apple discovers a hardware problem beyond the battery during the repair. In that case, they will contact you before proceeding with any additional work. If the watch needs a full replacement due to an unrelated defect, Apple will discuss that separately and may offer a replacement device instead of a repair.

Cost breakdown and warranty coverage

Battery replacement costs vary depending on whether you have coverage. Without AppleCare+ or an active warranty, expect to pay $79 to $99 for the battery itself, plus $6.95 for shipping if you mail the watch to Apple. In-store service at an Apple Store or Authorized Service Provider costs the same but eliminates the shipping fee. AppleCare+ for Apple Watch costs $4.99 per month or $49 upfront for two years of coverage and covers battery replacement when capacity drops to 80% or lower, plus accidental damage with a $79 service fee per incident.

If your watch is still within the one-year standard warranty and the battery has degraded below 80%, Apple may cover the replacement at no cost if they determine the degradation is a defect rather than normal wear. You can still purchase AppleCare+ within 60 days of buying the watch, even if you did not add it at the time of purchase. This can be useful if you plan to keep the watch for several years.

Extending battery life before replacement becomes necessary

You can slow battery degradation by adjusting how you charge and use the watch. Avoid letting the battery drain completely to 0% regularly — charging it when it reaches 20% is gentler on the battery. Do not leave the watch plugged in overnight constantly; unplug it once it reaches 100%. These habits are especially important if you plan to keep the watch for more than three years.

Disable features you do not use regularly. Always-on display, constant heart rate monitoring, and background app refresh all drain the battery faster and can make degradation more noticeable. Go to Settings > Display & Brightness and toggle off "Always On" if you do not need it. Check Settings > Privacy > Health to see which apps have permission to access health data in the background, and disable access for apps you rarely use.

Keep the watch's software up to date. Apple releases watchOS updates that sometimes improve battery performance. Go to Settings > General > Software Update to check for new versions.

Frequently Asked Questions

How long does an Apple Watch battery last before it needs replacing?

Most Apple Watch batteries remain at 80% capacity or higher for two to three years with normal use. After that, degradation accelerates. If you keep the watch for five or more years, battery replacement becomes likely. The exact timeline depends on how often you charge it and which features you use.

Can I replace the battery myself with a kit from the internet?

Third-party battery kits exist, but using them voids your warranty and risks damaging the watch permanently. The battery is glued in, and opening the case requires specialized tools and training. Even small mistakes during reassembly can cause water damage or broken components. The $79 to $99 Apple repair is worth the cost to avoid a broken watch.

What if my Apple Watch battery is swelling or bulging?

Stop using the watch immediately and contact Apple Support. A swollen battery is a safety hazard and should not be charged or worn. Do not attempt to open the watch yourself. Apple will prioritize the repair and may replace the watch entirely if the battery damage has affected other components. This is typically covered under warranty or AppleCare+.

Will my watch work while it is being repaired?

No. You will not have the watch during the repair process, which takes 5 to 7 business days by mail or a few hours to a few days for in-store service. If you rely on the watch daily, consider scheduling the repair during a time when you can go without it, or ask the service provider if they have a loaner device available.

Is it cheaper to buy a new Apple Watch than replace the battery?

A new Apple Watch starts at $249 for the base model, so battery replacement at $79 to $99 is significantly cheaper. Unless your watch is very old and has other hardware problems, replacement is the more cost-effective choice. If your watch is five or more years old and showing multiple issues, you might consider whether an upgrade makes sense for you, but battery replacement alone is always the cheaper option.