Amazon.com: oGoDeal A1578 Battery Replacement Compatible for Apple Watch Series 1 s1 A1802 and (1st Generation) A1553 7000 Series 38mm with Repair Tool Kit : Cell Phones & Accessories
Amazon.com: Battery Replacement Kit for Apple Watch Series 1 with Repair Tool Set A1803 and (1st Generation) A1554 42 mm : Cell Phones & Accessories
Apple on iPhone Battery Locking Issue: We Want to Make Sure Battery Replacement is Done Properly - MacRumors
About genuine iPhone batteries - Apple Support
Apple 'Service' Alerts for DIY iPhone Battery Swaps Are a Blow Against Right to Repair | WIRED
iPhone Battery Repair & Replacement - Apple Support