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Battery ​

Main menu key: p

Shows live charge level and roughly 1 hour of battery history (including sleep-segment markers).

Screenshots ​

battery

Shortcuts ​

This App’s footer is mainly legend text; there are no dedicated letter action keys.

LegendMeaning
1h logHistorical samples
liveLive segment
lightDuring light sleep
deepDuring deep sleep
nowCurrent point

Back: ESC / GO. Page keys do nothing when there is no extra page.

Usage ​

  1. Open to see current percentage and the curve.
  2. History is sampled in the background. Before the clock is synced, samples use uptime and are timestamped after NTP/RTC. Light and deep sleep use different curve colors.
  3. Useful for spotting runtime and sleep drain trends — not a precision fuel-gauge calibration tool.

Sparks for M5Stack Cardputer