Editor's Review
Plug a phone in and Android tells you almost nothing beyond a percentage. Charge Meter fills that gap with the figures underneath: current in milliamps, voltage, charging speed, temperature and an estimate of how long the battery needs to fill. Watching those numbers is how you discover that a cheap cable is throttling a good charger, or that one wall adapter is quietly half the speed of another.
It belongs to the small class of measurement tools that answer one question properly and then get out of the way. Comparing chargers, cables and ports is the practical use; the rest is curiosity about how a battery behaves across a charge cycle.
Two limits matter. First, everything shown is read from the operating system's own battery interface, so accuracy depends on what the manufacturer reports, and some devices expose considerably less than others. Second, this is a paid listing, so there is no way to try it before deciding, which is a real barrier for a utility whose entire value is a handful of readings you might consult twice a month.
Features
Live charging current and voltage readings
Estimated time remaining until a full charge
Battery temperature and health information
Charging session history for comparing chargers and cables
Pros
Makes the gap between a fast and a slow charger obvious
Stays focused on one job with no unrelated extras bolted on
Cons
Paid listing, so there is no free version to test first
Readings depend on what the handset's firmware chooses to expose
Nothing here speeds up charging; it only measures it
