+ <para><varname>ConditionACPower=</varname>
+ may may be used to check whether the
+ system has AC power, or is exlcusively
+ battery powered at the time of
+ activation of the unit. This takes a
+ boolean argument. If set to
+ <varname>true</varname> the condition
+ will hold only if at least one AC
+ connector of the system is connected
+ to a power source, or if no AC
+ connectors are known. Conversely, if
+ set to <varname>false</varname> the
+ condition will hold only if there is
+ at least one AC connector known and
+ all AC connectors are disconnected
+ from a power source.</para>
+