simbamond

simbamon, a Simple Battery Monitor

simbamon is an open source Linux daemon for monitoring battery levels; sending warning messages to the user if the battery is low; shutting down cleanly at critical battery levels; managing a power supply on/off switch; writing relevant data to the system logs. It is bundled with configuration and API tools for the MoPi mobile Pi power board. See http://pi.gate.ac.uk/pages/mopi.html#simbamon