BATTERY-STATS(5) - man page online | file formats

Collected battery statistics.

September 23, 2002
BATTERY-STATS(5)                       File Formats Manual                       BATTERY-STATS(5)


battery-stats - collected battery statistics


The battery-stats contains statistics about battery charge over time, as collected by the battery-stats-collector (8) daemon.


Each line in the file represents one sample and is of the form: <seconds> <charge%> <powermode> <UTC-date> <UTC-time> separated by spaces and terminated by a newline. Where: seconds is the number of seconds since 1st Jan 1970 00:00:00 UTC charge% is the battery charge a number between 0 and 100 powermode indicates the power mode: 0 A/C off 1 On battery 2 On backup power UTC-date a human-readable date in the format YYYY/MM/DD. Note that this is in UTC, not the local or system timezone. UTC-time a human-readable time in the format HH:MM:SS (using a 24-hour clock). Note that this is in UTC, not the local or system timezone. minutes-left is the BIOS estimate of how many minutes of running time the battery would provide. This may be unreliable, depending on the BIOS through which it was collected.


A battery under charge might result in the following samples: 1032651245 27 1 2002/09/21 23:34:05 94 1032651275 28 1 2002/09/21 23:34:35 97 1032651305 29 1 2002/09/21 23:35:05 100 1032651335 30 1 2002/09/21 23:35:35 103 1032651365 30 1 2002/09/21 23:36:05 106


The default set-up is to save battery statistics in /var/log and rotate the logs weekly, which results in this set of files: /var/log/battery-stats - current (most recent) statistics /var/log/battery-stats.[0-9]+ - less recent statistics /var/log/battery-stats.[0-9]+.gz - ancient statistics


battery-graph(1), battery-stats-collector(8).


Karl E. Jørgensen <>
September 23, 2002 BATTERY-STATS(5)
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battery-stats(5) referred by battery-graph(1)
refer to battery-graph(1) | battery-stats-collector(8)