OEM Standards Manufacture: Real capacity 11.39Volts=49.9Wh 4380mAh. Same manufacture standards as the original A2389 batteries for MacBook Air 13" model A2337. Provide up to 1000+ charging cycles and support fast charging with overcharge and discharge circuit protection Compatible Mac Models: Fit for MacBook Air Retina 13 Inch Model A2337 EMC 3598 (2020 M1 Version), Model Identifier: MacBookAir10,1 Replacement Battery Models: Replace for MacBook Air 13inch M1 Model A2337 2020 Released Versions, battery type A2389. Part Numbers: MGNA3LL/A, MGND3LL/A, MGNE3LL/A, MGN53LL/A, MGN63LL/A, MGN73LL/A, MGN83LL/A, MGN93LL/A, etc How to Get Correct Battery: First, upside down your Mac to get the exact model name & EMC numbers; Second, find and click on About This Mac, and the system model and release year is on the pop window; Third, follow the method 2 and then click on "System Report" the model identifier is on the "Hardward Overview"; Fourth, check the original batte