· Before Placing An Order: Please identify the model and year of your Mac and confirm whether the A1965 replacement battery can match your laptop model· Specification: Battery Type: Li-Polymer; Voltage: 11.4V; Capacity: 4800mAh/55Wh; Condition: Brand new· Compatibility: A1965 laptop battery is compatible with Mac Book Air 13-inch A1932 A2179, 2018-2020 version· High Quality & Safety: A1965 batteries undergo extensive quality checks to ensure high quality. Grade A cells ensure fast charging and low power consumption, and built-in circuit protection ensures both safety and stability· Attention: When you are installing the battery, please DO NOT tear off the film (on the battery) at first, after you install the battery, you can tear off the film. & It is recommended to fully charge and discharge the battery at least three times to activate the cell activity