AccuBattery, lauded by AndroidHeadlines for its battery longevity optimization, provides detailed usage data and precise milliampere-hour (mAh) capacity measurements. This app prioritizes extending battery lifespan by highlighting the detrimental effects of frequent charging on overall capacity.

Battery Usage Monitoring:
AccuBattery leverages direct readings from the battery's charge controller to accurately determine actual battery usage. It pinpoints app-specific power consumption by correlating these measurements with foreground app activity, offering superior accuracy compared to the often unreliable generalized profiles provided by device manufacturers. Key features include:
- Real-time battery drain monitoring.
 - Estimation of active and standby usage times.
 - App-specific power consumption tracking.
 - Deep sleep wake-up frequency monitoring.
 
Charging Optimization:
AccuBattery assists in identifying optimal chargers and USB cables by measuring charging current (mA). It allows you to:
- Assess charging speeds with the screen on or off.
 - Track full charge times and receive completion notifications.
 

Key Features:
- Precise measurement of actual battery capacity (mAh).
 - Charge alarm functionality to promote battery longevity.
 - Battery wear tracking per charging cycle.
 - Discharge rate and app-specific consumption monitoring.
 - Remaining charge and usage time estimations.
 - Screen-on/off usage estimations.
 - Deep sleep time analysis.
 - Real-time battery stats via persistent notification.
 

Pro Version Benefits:
- Dark and AMOLED black themes for enhanced battery life and reduced eye strain.
 - Access to historical data exceeding 24 hours for comprehensive analysis.
 - Detailed battery statistics directly within the notification area.
 - An ad-free experience for seamless battery management.