2026-11-02
Phone Battery Health Down to 78%? We Tested $18 Third-Party vs $100 Official Batteries Across 300 Charge Cycles
When your 2.5-year-old phone drops below 80% battery health and shuts down in winter cold, should you pay $99 for an official battery or $18 for a third-party 'high-capacity' cell? We tested 4 battery options over 300 full cycles using precision coulomb meters and internal resistance analyzers.
