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• Lighter: removed an unused ad request • Privacy choices for users in the EEA and UK
Estimates real battery capacity from one charge. Check before a used sale.
Battery condition moves used-phone prices more than anything else, yet there's no easy way to check it. Plug in a charger and a twenty percent rise is enough to estimate real capacity. ■ Measures while you charge You don't need to keep the app open. It works from charge-counter changes. ■ Health against design capacity Shows what percentage remains compared with the manufacturer spec. ■ Status card for resale Creates an image with the model and health, ready to attach to a listing. ■ Current status at a glance Level, voltage, temperature and charge counter together. ■ Privacy Battery data is used only for display and estimation and is never transmitted. ■ Please note Results are estimated from charge-counter changes during charging and are not an official manufacturer diagnosis. Some devices don't report charge data and can't be measured.