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Introducing Ampere stats
Track battery health estimates, charging current, temperature and charge alerts.
Understand your phone's battery with Ampere Stats. Monitor charging current, review battery health estimates and set reminders for your chosen charge level. LIVE BATTERY MONITORING See battery level, charging and discharging current in mA, temperature and voltage when your phone exposes these readings. Explore charts to understand how readings change during use and charging. BATTERY HEALTH ESTIMATES Build a battery capacity estimate in mAh from eligible charging sessions. Enter the manufacturer's rated design capacity to compare estimated capacity with that baseline. See the supporting observations and why a session may not qualify. Health estimates need sufficient data and are not laboratory measurements. CHARGE AND LOW BATTERY ALERTS Set a charge alarm for a chosen battery percentage or a low battery reminder. Choose a sound, vibration or silent notification, test your reminder, and snooze it when needed. Alerts follow Android notification permissions, channels and Do Not Disturb settings. They remind you to unplug; they cannot stop charging. SESSION HISTORY AND CHARTS Review charging and discharging sessions, filter history, and inspect current, temperature and voltage trends. Collection gaps are identified so missing measurements are not presented as continuous recording. YOUR HISTORY, YOUR CONTROLS Battery readings, profiles and settings are stored locally on your phone. Export recorded data to CSV using Android's file picker, choose detailed sample retention, or delete local history. After a battery replacement, start a new profile while keeping the old profile's history separate. LIGHT, DARK AND AMOLED THEMES Choose a theme that suits you and switch between Celsius and Fahrenheit for temperature readings. DEVICE SUPPORT AND MONITORING Readings depend on the sensors and information exposed by your phone. Some devices do not provide usable current or charge-counter data. Current and power readings describe the battery side, not the wall charger's output. Continuous monitoring is optional and uses a visible notification with a Pause action. Android and manufacturer background restrictions can interrupt recording or delay reminders. Occasional mode records while the app is open. Ampere Stats does not repair batteries, boost charging speed or identify battery consumption by individual apps.