Lenovo MacBook 12-inch A1534 / A1527 Battery (OEM Replacement)

This battery is designed for Apple MacBook 12-inch Retina (A1534, 2015–2017) models. It is a built-in ultra-slim lithium-polymer battery used in fanless MacBook systems, providing stable and efficient power for office work, browsing, streaming, and lightweight productivity tasks. The most common part numbers are A1527 and A1534, also compatible with Apple identifiers such as 020-00019, 020-00020, and 661-02360 depending on production batch and model configuration.