The amount of delay, in 6 second intervals, between
when the UPS goes on battery and the power down sequence for
the outlet is initiated.
Allowed values are:
-2 - Never initiate the power down sequence on low battery warning.
-1 - Initiate power down sequence based on remaining runtime.
1 - 9999 six second intervals (6 secs - 16hrs, 39 mins, 54 secs).
0 indicates to immediately initiate power down sequence on low
battery warning.