Battery Health & Performance
Battery performance is one of the most important factors when purchasing a refurbished phone. At Phone Exchange, every device is professionally tested using PhoneCheck-certified diagnostics software to ensure reliable battery performance.
✔ Free Battery Replacement if Health Drops Below 80% Within Warranty Period
If battery health drops below 80% during the warranty period, we’ll replace it free of charge. Shipping fees may be applied.
✔ Minimum 81% Battery Health Guaranteed at Time of Sale
Devices below this threshold are not listed for sale.
What We Check During Battery Testing
- Battery Maximum CapacityVerified to meet our minimum performance standard.
- Charging FunctionalityTested for proper charging speed, port integrity, and stability.
- Battery Cycle & Health DiagnosticsAssessed through professional diagnostic tools for long-term performance reliability.
- Thermal Stability CheckDevice is tested to ensure no abnormal overheating during use.