A cross-platform battery monitoring app that notifies you when your battery is full or low. Runs in the system tray with customizable sounds, themes, and notification thresholds.
Built with Avalonia UI and .NET 10 — works on Windows, macOS, and Linux.
Screenshot:
- Battery notifications — alerts when battery is full (while charging) or low (while discharging)
- Customizable thresholds — set your own full/low battery percentage triggers
- Battery drainer detection — shows which apps are draining your battery the most, with estimated time impact and actionable tips
- Battery health dashboard — capacity, cycle count, temperature, power draw, charge history sparkline, and wear trend
- Sound library — built-in synthesized tones, bundled Editor's Choice sounds, or import your own
- System tray — runs quietly in the background, click to show/hide
- DND-aware — respects Do Not Disturb / Focus mode on all platforms
- Themes — System, Light, and Dark mode
- Launch at startup — auto-start with your OS
- Escalating notifications — Duolingo-inspired backoff so you're not spammed
- Encrypted settings — encrypted at rest (DPAPI on Windows, AES-256-GCM on macOS/Linux)
Grab the latest release from GitHub Releases.
| Platform | Download |
|---|---|
| Windows x64 | BatteryNotifier-win-x64.zip |
| Windows ARM64 | BatteryNotifier-win-arm64.zip |
| macOS Apple Silicon | BatteryNotifier-osx-arm64.tar.gz |
Requires .NET 10 SDK.
# Build
dotnet build BatteryNotifier.sln
# Run
dotnet run --project BatteryNotifier.Avalonia/BatteryNotifier.Avalonia.csproj
# Test
dotnet test BatteryNotifier.Tests/
# Publish (self-contained)
dotnet publish BatteryNotifier.Avalonia/BatteryNotifier.Avalonia.csproj -c Release| Category | Sounds | Description |
|---|---|---|
| Built-in (synthesized) | Zen, Harp, Breeze, Bloom, Pulse, Klaxon, Rattle, Chime, Alert, Beacon | Short tones generated at runtime |
| Editor's Choice (bundled) | Rock N Roll, Admonition, Snowy Glow, Legacy | Curated music clips shipped with the app |
| Custom (imported) | Your files | Import any .wav, .mp3, .m4a, .ogg, .flac, or .aac file |