Excellent quality batteries for APPLE IWATCH Series. Irelandbattery.com specializes in laptop batteries. We store most all laptop batteries for all APPLE IWATCH Series. Each of our APPLE IWATCH Series laptop batteries uses Class A batteries which are certified to CE, FCC, ROHS, PSE, etc. Our products are safe and reliable, you can buy with confidence. The replacement battery part numbers and APPLE IWATCH Series laptop models are listed as below.