Battery 100% Alarm is a utility tool designed for iPhone users to manage battery charging effectively. It provides customizable alert settings for when your battery reaches 80%, 90%, and 100% charge levels, helping to prevent overcharging. This feature is essential for maintaining battery health and improving longevity over time. The app also includes a continuous display of the current battery percentage, allowing users to monitor their battery status in real-time.

In addition to its alert system, Battery 100% Alarm offers a variety of customizable options including a selection of alarm sounds, adjustable alarm volume, and flexible notification settings. Users can choose from a library of sounds or upload their own, and receive notifications through vibrations or standard alerts. Furthermore, the app provides visual charts for battery charge history, enabling users to track their charging habits and make adjustments as necessary for optimal device performance.