What Battery Information Should You Check Before Buying a Pre-Owned Phone?
Battery percentage is only one part of the story. Understand charge cycles, OEM authenticity warnings, and why transparent battery disclosure is the biggest trust test in refurbished tech.
Battery degradation is the most common reason people replace their phones. When purchasing a pre-owned device, understanding battery health is vital to avoid unexpected battery replacements within months of buying.
1. Apple iOS Battery Health %: iPhones display Maximum Capacity under Settings > Battery > Battery Health. Above 90% is considered outstanding; 85%–90% is healthy for full-day heavy use; below 80% will soon prompt a service warning.
2. Android Battery Diagnostics: Android flagships (Samsung Galaxy, Google Pixel, OnePlus) evaluate battery health through hardware charge cycles and thermal sensors. We run full diagnostic cycles to ensure rapid charging negotiation (e.g. 100W SUPERVOOC on OnePlus, 45W on Samsung) functions cleanly without overheating.
3. Replaced Battery Messages: If a battery has been replaced, verify whether it was done with a certified genuine component or an unverified third-party cell. We clearly disclose battery provenance on every device scorecard.
4. The Deals Milegi Standard: We label every single device with its sample battery health percentage so you can choose the exact balance of price and longevity that fits your budget.
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