A reboot command uses the Initiator's Return battery Capacity (RBC) to control
when the SCG completes this operation. In a Normal Control Operation (NCC) the
UPS will only complete the reboot if RBC is reached. Due to normal battery
charge rate variations it may be desirable for the Followers to complete the
reboot if they are within some range of the Initiator's RBC when the Initiator
is prepared (charged to RBC) to complete the reboot. The Return Battery
Capacity Offset (RBCO) defines a percent battery capacity subtracted from an
RBC above which a Follower's battery must be charged for it to complete a
reboot. For example, if the Initiator's RBC is 50% and the Initiator's RBCO is
5% then a Follower's battery capacity is within range if it is greater or equal
to 45% (50% - 5%) at the time when the Initiator tries to complete the reboot
command. The default RBCO is 10%.