MacBook Battery Replacement Guide: How to Safely Swap an OEM Battery | Repair Guide | Nexus Parts Online

This guide covers safe MacBook Pro battery removal and replacement using genuine OEM cells. A degraded battery causes throttled performance, unexpected shutdowns, and reduced portability. If your cycle count exceeds 1000 or macOS displays a Service Battery warning, replacement restores your MacBook to its original runtime. This guide applies to 2015-2023 MacBook Pro models with glued-in battery packs.