Diagnosis of MacBook A1708 with CMIzapper 'Known Good Battery'

The CMIzapper 'Known Good Battery' is a clever tool that will save you a lot of time (and rabbit holes) once you understand how it works. It only takes seconds to connect so it would be a good idea to always connect it when repairing a Mac motherboard. Link to the Known Good Battery (Battery Port Tester) product page: https://www.cmizapper.com/products/ba...