Macintosh Portable: System 6.0.5 Fixes Excessive Battery Drain
A problem has been discovered with the Macintosh Portable that relates to
reduced battery power.
When the Macintosh Portable has AppleTalk active (in the Chooser) and you
select the "Shut Down" command, the SCC chip continues to draw excess current
from the battery. If the machine is not used for 4 or more days, the battery
will be drained and need a recharge. (Normally, the Macintosh Portable's
charge will last about 4 weeks when stored in the shutdown condition).
This problem does NOT occur when AppleTalk is active and the "Sleep" command
is selected instead of "Shut Down." This problem also does NOT occur if
AppleTalk is inactive and "Shut Down" is selected.
This problem was corrected with System Software 6.0.5. We recommend that you
upgrade to System Software 6.0.5 or later.