- Battery life not what it used to be? Replace the battery and buy some more time.
- This new replacement battery will only fit in the 42 mm Original and Series 1 Apple Watch. Find the used OEM 42 mm battery here.
Note: Lithium ion battery shipping regulations limit the shipping methods for orders containing batteries. Domestic orders may only be shipped via Standard shipping. iFixit is not able to ship batteries internationally or outside the contiguous US at this time. iFixit Customer Support will contact you if your order needs to be modified after it is placed.
- Apple Watch 42 mm Original and Series 1