Battery Health
Estimates real battery capacity from a single charge, handy before a resale
Overview
Battery condition moves used-phone prices more than anything, yet there's no easy way to check it.
Plug in a charger, and a twenty percent rise is enough to estimate the real capacity.
Screenshots
Features
Measures while you charge
No need to keep the app open. It works from the charge counter while charging.
Health against design capacity
Shows what percentage remains compared with the manufacturer's spec.
A status card for resale
Creates an image with the model and battery health, ready to attach to a listing.
Current status at a glance
Charge level, voltage, temperature and charge counter in one place.
Data and permissions
- Battery data is used only for display and estimation and is never transmitted.
Note
Results are estimates based on charge-counter changes during charging, not an official manufacturer diagnosis. Devices that don't report charge data can't be measured.