estimation

name	estimation
description	Computes estimated time to full charge or depletion from recent battery trends. Use when implementing battery time remaining estimation and fallback rules for noisy or missing data.

Estimation Skill

Goal

Estimate remaining minutes to full charge or empty battery.

Method

1. Build slope from recent history (deltaPercent / deltaMinutes).
2. Ignore windows that are too short or nearly flat.
3. For charging: estimate minutes to 100%.
4. For discharging: estimate minutes to 0%.
5. Clamp unrealistic outputs and return nil on low confidence.

Fallback

• Prefer system-provided remaining time if available and valid.
• Otherwise, use trend estimate.