I created Battery Forecast, an open-source Windows adaptation of Matteo Bonfanti’s Till Dusk, powered by Mistral AI’s Timestral-28M model.
Instead of relying only on Windows’ battery estimates, it uses your local battery history to predict:
- How long your battery will last based on your usage.
- When charging will reach your target (e.g. 80%).
- Your expected battery level later in the day.
- Battery trends over the next 24 hours.
Features:
- Fully offline AI inference — no cloud or account required.
- Battery history and health monitoring.
- System tray app with customizable alerts.
- Estimated time ranges and interactive charts.
- Supports Windows 10/11 (x64 and ARM64).
The model runs locally on your CPU and uses historical data without retraining.
Note: Forecast accuracy is still being evaluated, and charging predictions remain experimental.
GitHub: https://github.com/Mattboxx/battery-forecast
Website: https://mattboxx.github.io/battery-forecast/
I’d love to hear your feedback, especially from people willing to test the predictions on their own laptops!
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