
MacBook Won’t Charge: Battery, USB-C Port, or Logic Board?
MacBook Won’t Charge: Battery, USB-C Port, or Logic Board? Written by 911 Tech Repair Table of Contents Introduction: Why a MacBook May Stop Charging Battery-Related Problems: Health, Calibration, and Power Management Battery Health, Cycle Count, and Charging Limits How macOS Power Management Can Mimic a Failed Battery USB-C Charging Faults: Cable, Port, and Power Delivery Issues Why USB-C Cables and Chargers Are Not Interchangeable Dust, Port Wear, Liquid Damage, and Negotiation Failures When the Logic Board Is the Real Problem Charging Controllers, USB-C Power-Delivery Circuits, and Board-Level Failures Diagnostic Clues That Separate a Board Fault from a Battery or Port







