Battery Health

Take control of your device's power with Battery Health Estimator. This intuitive app helps you predict remaining battery life based on your current charge and daily usage habits. Simply adjust the sliders for your current charge level and average daily usage hours. Watch as the interactive gauge instantly calculates your estimated remaining percentage. The app uses a deterministic formula to provide accurate, real-time insights without needing an internet connection. Track your progress over time with the built-in historical trend chart. Save your daily data locally to visualize how your battery health evolves over the last 7 days. All data is stored securely on your device using UserDefaults, ensuring your privacy and offline functionality. Perfect for users who want to optimize their charging routines and understand their device's power consumption patterns. No network calls, no ads, just pure utility. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/