Full Battery Charge Alarm addresses a common modern concern: smartphone battery degradation through prolonged charging cycles. Developed by Syrupy, this Android application serves as a proactive monitoring system that notifies users precisely when their device reaches full charge capacity, enabling timely disconnection from power sources. The application's core functionality revolves around real-time battery monitoring through Android's system APIs. When the battery reaches 100% charge, the application triggers customizable audible and visual alerts. An optional beta feature expands functionality to include low battery warnings, creating a comprehensive charge management system. The application requires specific configuration steps for Huawei, OnePlus, Xiaomi, and Meizu devices to maintain background operation due to these manufacturers' aggressive battery optimization policies. User experience centers on simplicity and reliability. The interface presents minimal configuration options: users enable the alarm, adjust volume settings, and optionally activate the low battery feature. The application operates entirely in the background without draining significant resources, consuming approximately 2-4MB of RAM according to developer specifications. Real-world testing demonstrates effective notification delivery across various Android versions, though performance varies slightly depending on device manufacturer and power management settings. With no specific user reviews available for analysis, the application's 4.66/5 rating suggests generally positive reception. Typical battery utility applications of this nature commonly receive praise for functionality that addresses genuine device preservation concerns while criticism often focuses on compatibility issues with specific device manufacturers' custom Android implementations. The application's primary strength lies in its focused approach to battery preservation, though limitations include potential compatibility challenges with certain Android skins. It represents an optimal solution for users seeking to maximize their device's battery health through disciplined charging practices, particularly those who frequently charge devices overnight or for extended periods.