You cannot replace the battery yourself on any Apple Watch model
Apple Watch batteries are sealed inside the case and require specialized tools to access. Unlike older watches or some Android devices, there is no user-accessible battery compartment. If your Apple Watch battery no longer holds a charge, your only option is to have Apple or an authorized repair provider replace it.
The battery is glued to the internal components, and opening the case yourself will damage the watch's water resistance seal and void any remaining warranty. Even if you succeed in removing the battery, reassembling it correctly requires equipment most people do not have.
Key Takeaways
- Apple Watch batteries cannot be replaced by the user — the case is sealed and requires specialized tools to open safely.
- Apple offers battery replacement through its stores and mail-in repair service for a flat fee that varies by watch model.
- Authorized third-party repair shops can replace batteries, but prices and turnaround times vary widely.
- Battery degradation is normal after two to three years of daily use, and replacement typically costs between $70 and $100.
- If your watch is still under warranty or covered by AppleCare+, battery replacement may be free or discounted.
How much Apple charges for battery replacement
Apple's battery replacement service costs between $70 and $100 depending on the watch model and size. Series 9 and Ultra models cost more than older Series 8 or SE models. You can check the exact price for your specific watch on Apple's repair pricing page or by visiting an Apple Store.
If you have AppleCare+ for your watch, battery replacement is covered at no cost as long as the watch is not physically damaged. AppleCare+ also covers accidental damage, cracks, and water damage for a small deductible. Without AppleCare+, you pay the full battery replacement fee.
Apple offers two ways to get your battery replaced: in-store at an Apple Store, or by mail through Apple's repair service. In-store replacement typically takes one to two hours. Mail-in service takes five to seven business days plus shipping time.
Third-party repair shops and their costs
Independent watch repair shops and electronics repair chains like Best Buy's Geek Squad also replace Apple Watch batteries. Prices at third-party shops typically range from $50 to $90, sometimes undercutting Apple's official pricing. However, using a non-authorized repair shop voids your warranty and may damage the watch's water resistance if the technician does not properly reseal the case.
Before choosing a third-party shop, ask whether they use genuine Apple batteries or third-party replacements. Genuine batteries last longer and perform more reliably. Also ask about their warranty on the repair work itself — reputable shops may provide their work for at least 30 days.
Turnaround time at independent shops is often faster than Apple's mail-in service, sometimes same-day or next-day. Call ahead to confirm they have the right battery in stock for your specific watch model and size.
When your watch is still under warranty
If your Apple Watch is less than one year old and the battery is failing, Apple replaces it free under the standard one-year limited warranty. The battery must be genuinely defective — not simply degraded from normal use. Apple tests the battery before confirming it qualifies for warranty replacement.
If you purchased AppleCare+ within 60 days of buying your watch, battery replacement is covered at no cost for the full two-year protection period. AppleCare+ also covers accidental damage, which the standard warranty does not. You can check your coverage status in the Apple Watch app under Settings > General > About, or by visiting apple.com and signing in with your Apple ID.
Signs your Apple Watch battery needs replacement
A healthy Apple Watch battery should last a full day of normal use. If your watch dies by mid-afternoon despite regular charging, or if it shuts down at 20 percent battery remaining, the battery is likely degraded. You may also notice the watch drains faster than it did when new, or takes longer to charge fully.
Battery degradation is normal and expected. Apple Watch batteries are designed to retain 80 percent of their original capacity after 1,000 charge cycles, which typically takes two to three years of daily use. After that point, replacement becomes more cost-effective than constantly charging throughout the day.
Before assuming the battery is bad, try these steps: restart the watch by holding the side button until the power-off slider appears, then slide to power off. Wait 10 seconds and power it back on. If battery drain continues, unpair and re-pair the watch to your iPhone, which sometimes resolves software-related battery issues. If the problem persists after these steps, the battery likely needs replacement.
What happens if you try to open the case yourself
Opening an Apple Watch case yourself requires prying tools that can slip and scratch the screen or case. The battery is glued down, so removing it without heat and proper technique will damage the adhesive and the components underneath. Once you have opened the case, reassembling it without the proper sealing equipment means water will eventually enter the watch and destroy the electronics.
Apple and most repair shops will refuse to service a watch that has been opened by someone without proper training. Some third-party shops may still repair it, but they cannot may provide water resistance after reassembly. The cost of repairing damage from a failed DIY attempt often exceeds the cost of professional battery replacement.
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 zero regularly — charge it when it reaches 20 percent. Avoid exposing the watch to extreme heat, which degrades the battery faster. Turn off features you do not use, such as always-on display, continuous heart rate monitoring, or background app refresh.
Reduce screen brightness and disable raise-to-wake if you do not need them. Disable location services for apps that do not require it. These changes will not prevent battery replacement eventually, but they can add six months to a year of usable life before degradation becomes noticeable.
Frequently Asked Questions
How long does an Apple Watch battery last before it needs replacement?
Most Apple Watch batteries remain usable for two to three years of daily charging. After that, you will notice the watch no longer lasts a full day on a single charge. Battery degradation is gradual, not sudden, so you have time to plan for replacement rather than facing an unexpected failure.
Can I replace just the battery, or do I have to replace the whole watch?
You can replace just the battery. Apple and authorized repair shops offer battery-only replacement service. You do not need to buy a new watch unless the battery replacement cost approaches the price of a new model, which is rare unless your watch is very old.
Will AppleCare+ cover a battery that is just old and worn out?
AppleCare+ covers battery replacement at no cost regardless of age or wear. The coverage includes batteries that have degraded from normal use. Without AppleCare+, battery replacement is not covered after the first year, and you pay the full service fee.
Is it safe to use a third-party battery instead of an Apple battery?
Third-party batteries are generally safe but may not last as long as genuine Apple batteries. The bigger risk is that a repair shop using improper techniques may damage the water resistance seal when reassembling the watch. Ask the shop whether they use genuine Apple batteries and what warranty they offer on the repair work.
What should I do if my watch is out of warranty and the battery is failing?
Contact Apple for a battery replacement quote, then compare it to prices at authorized repair shops and independent repair providers in your area. If the cost is more than half the price of a new watch, you may want to consider upgrading instead. Otherwise, battery replacement is the most cost-effective option to extend your watch's usable life.