Add a one-cell braille battery indicator to the status bar, shown only when
the companion reports a pack. The cell fills bottom-to-top in four tiers —
green healthy, orange at a quarter, red near empty — with the true percent
beside it; it blinks red↔dim when critically low and sweeps a filling
animation while charging. A session-long BatteryService polls the pack,
maps millivolts to a state-of-charge estimate off a single-cell LiPo curve,
and infers charging from a rising terminal voltage (firmware exposes no
charging flag). The header pins the gauge flush right and the activity
pulse cedes exactly the cells it needs.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Jean-Pierre MartineauandClaude Opus 4.8
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