Yes, Apple Watch batteries can be replaced, but Apple handles it, not you
You cannot replace an Apple Watch battery yourself. Apple does not sell the battery as a separate part, and the watch is sealed in a way that makes opening it without damaging the screen or case extremely difficult. If your battery no longer holds a charge, you have two paths: send the watch to Apple for a battery replacement, or replace the entire watch.
Battery replacement through Apple costs between $79 and $99 depending on the model, plus shipping if you mail it in. The process takes about a week from the time Apple receives it. If your watch is still under the one-year limited warranty and the battery failure is a manufacturing defect rather than normal wear, Apple replaces it at no cost.
Key Takeaways
- Apple Watch batteries cannot be replaced by the user; only Apple's repair centers can do it safely.
- Battery replacement costs $79 to $99 and takes about a week, not including shipping time.
- If your watch is under warranty and the battery failure is a defect, the replacement is free.
- For watches older than three years, replacing the battery often costs nearly as much as buying a refurbished model, so compare prices before deciding.
- You can check your battery health in Settings > Battery to see if degradation is normal wear or a sudden failure.
How to know if your battery actually needs replacement
Apple Watch batteries degrade over time. A battery that held a full charge for two days when new might hold a full charge for one day after two years of use. That is normal wear, not a defect. Before you pay for a replacement, check whether your battery is straightforward aging or whether something is wrong.
Open Settings on your watch, go to Battery, and look at the battery health percentage. If it shows 80% or higher, the watch is aging normally. If it drops below 80%, the battery is degrading faster than expected. If it suddenly drops from 90% to 40% overnight, or if the watch shuts down at 30% battery, that is a sign of a defective battery that Apple should replace under warranty.
Also check what is draining the battery. Go to Settings > Battery > Battery Usage to see which apps are consuming the most power. If a single app is using 40% or more of your battery, disabling background app refresh for that app might solve the problem without a replacement.
What happens when you send your watch to Apple for repair
You can start a repair through Apple's website, by visiting an Apple Store in person, or by calling Apple Support. If you go through the website or phone, Apple will email you a prepaid shipping label. You pack the watch in a box, drop it at a UPS location, and Apple receives it within two to three business days.
Once Apple receives the watch, they run diagnostics to confirm the battery is the problem. This takes one to two business days. If the battery is defective and your watch is under warranty, they replace it at no cost. If the battery is normal wear or your warranty has expired, they quote you the $79 to $99 fee. You can approve or decline the repair at that point. If you approve, the repair takes another two to three business days, and then they ship it back to you.
Total time from drop-off to receiving your watch back is usually seven to ten business days. If you need your watch sooner, visiting an Apple Store in person can sometimes speed this up — some locations have batteries in stock and can do the replacement the same day, though this is not may provide.
When battery replacement costs more than a new watch
An Apple Watch Series 9 costs $399 new. A battery replacement costs $99. If your watch is three years old, a refurbished Series 9 or a current-year older model often costs $150 to $250. In that case, replacing the battery might not make financial sense.
Before you pay for a replacement, check the current price of a refurbished Apple Watch of the same model on Apple's website or on Amazon. If a refurbished version costs less than $150 more than the battery replacement, buying a new watch gives you a newer processor, updated software support, and a fresh battery all at once.
Also consider how much longer you plan to use the watch. If you are thinking about upgrading in the next year anyway, a $99 battery replacement buys you time until you are ready to switch. If you plan to keep the watch for three more years, the replacement is worth it.
Third-party repair shops and what to watch for
Some independent repair shops advertise Apple Watch battery replacement for $40 to $60. These shops can open the watch and replace the battery, but there are real trade-offs. Opening the watch risks damaging the screen, the case, or the water-resistance seal. If the seal is damaged, water can get inside and destroy the electronics.
Independent shops also cannot access Apple's diagnostics tools, so they cannot confirm whether the battery is actually the problem or whether something else is draining power. If you go this route, choose a shop with specific experience repairing Apple Watches and ask whether they warranty the repair if the screen cracks or the watch stops working after the battery replacement.
Apple does not recognize repairs done by third parties, so if something goes wrong after an independent repair, Apple will not fix it under warranty. You would have to return to the third-party shop or pay Apple's full repair cost again.
Extending battery life before you need a replacement
You can slow down battery degradation by changing how you charge and use the watch. Charging to 100% every night and letting it drain to 0% stresses the battery more than keeping it between 20% and 80%. If you charge your watch overnight every night, try charging it only every other night, or charge it in the morning instead.
Disable features you do not use. Always-on display, constant heart rate monitoring, and background app refresh all drain the battery faster. If you turn off always-on display and set the watch to wake only when you raise your wrist, you can often add several hours to your battery life per day.
Keep your watch updated. Apple releases watchOS updates that sometimes improve battery performance. Go to Settings > General > Software Update to check for updates and install them while your watch is charging.
What to do if your watch is out of warranty
If your watch is older than one year and the battery is failing, Apple will still replace it for $79 to $99. This is not a warranty repair — it is a paid service. Apple considers this a standard repair, not a defect, because all batteries degrade over time.
You have the same options as a warranty repair: mail it in or visit an Apple Store. The cost and timeline are the same. The only difference is that you pay the fee instead of Apple covering it.
If the cost feels too high, this is the point where comparing the price to a refurbished watch makes sense. A refurbished Apple Watch Series 8 often costs $200 to $250, which is only $100 to $150 more than a battery replacement. For that difference, you get a newer model with a longer software support window and a battery that will last another two to three years before degrading.
Frequently Asked Questions
Can I replace the Apple Watch battery myself with a kit from Amazon?
Kits exist, but they are not recommended. Opening an Apple Watch requires specialized tools and experience. The screen is glued to the case, and prying it open usually cracks the glass. Even if you succeed, reassembling it without damaging the water-resistance seal is difficult. If something goes wrong, you have destroyed a watch that Apple could have repaired.
How long does an Apple Watch battery last before it needs replacement?
Most Apple Watch batteries hold a usable charge for two to three years of daily use. After that, you will notice the watch drains faster and may not last a full day. This is normal wear, not a defect. Some batteries fail sooner if the watch is exposed to extreme heat or charged improperly.
Will Apple replace my battery if I cracked the screen?
Apple will replace the battery, but they may charge you for screen repair as well. If the screen is cracked, Apple typically fixes both issues and charges you for both repairs. Ask for a quote before you approve the repair so you know the total cost.
Is it worth replacing the battery in a five-year-old Apple Watch?
Probably not. A five-year-old watch is running older software and will not receive updates much longer. A refurbished current-year or recent model costs only slightly more than a battery replacement and gives you years of additional use. Check the price of a refurbished model before deciding.
What if my watch stops charging after the battery replacement?
If Apple did the repair, contact them when ready and explain the problem. They warranty their repairs, so they will either fix it again at no cost or replace the watch. If a third-party shop did the repair, contact them first. If they cannot fix it, you can take it to Apple, but Apple may charge you for the repair since it was damaged by a third party.