Original battery in Service Pack packaging directly from Apple for iPhone 12 / iPhone 12 Pro

Part 661-17920

This part allows diagnostics to be completed after repair - it can be paired with the phone, and no notification about an unknown part will be displayed.

A set of screws is also included with the purchased part. 

After replacing the part, the Repair Assistant tool will be available on the device. It is recommended to complete the repair by running this tool. For this type of repair, follow the instructions provided in the repair guide: https://support.apple.com/cs-cz/docs/iphone