Apple Watch Original Batteries
Replace a cracked screen or a dead battery in your Original Apple Watch.
iFixit has you covered with parts, tools, and free repair guides. Repair with confidence! All our replacement parts are tested to rigorous standards and backed by our industry-leading warranty.
Apple Watch (42 mm, Original & Series 1) Battery
Replace a 245 mAh battery compatible with 42 mm Original or Series 1 Apple Watch models A1554 and A1803. 3.78 Volts (V). Battery model A1579.
Apple Watch (38 mm, Original & Series 1) Battery
Replace a 205 mAh battery compatible with Apple Watch 38 mm Original and Series 1 Models A1553 and A1802. 3.8 Volts (V). Battery Model A1578.
The original Apple Watch is Apple's first wearable device. The standard Apple Watch is tailored to the everyday user, and is available in 18 different models. The Apple Watch Sport is designed with fitness in mind, and comes in 10 different models. The Apple Watch Edition is the "premium" version, crafted of 18-karat gold and available in both yellow and rose gold finishes.
Most of the differences in models are in the material or finish of the watch case or in the type of wrist band. The internal parts of the watch are are determined by the case size either 38 mm or 42 mm.