Battery Alarm: Extend Lifespan

by Dashawn Kohler

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Oct 26, 2026 Health & Fitness

android app battery management lifespan extension mobile-health power optimization

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Hi everyone, I'm a backend engineer by day, and Battery Alarm is one of my Flutter side projects on Android. The problem: Most of us leave our phones plugging in overnight or let them drain to single digits. Keeping the battery between roughly 20% and 80% is widely recommended for battery health, but nothing reminds you to unplug or plug in at the right time. What it does: - High-charge alert: set your own limit (80%, for example) and get notified when the battery reaches it, so you can stop...