Sony BC-1WD Service Manual page 7

Lamp Status
Slowly flashing in
red
Lit in red
Slowly flashing in
green
Rapidly flashing in
green
Lit in green
Lit alternately in
red and green
Meaning
Auto refresh in progress
(fully discharging the battery)
End of auto refresh
Booster charge in progress
Near end of booster charge
End of booster charge or trickle charge
in progress
One of the following conditions exists:
• The battery voltage has not risen to
the booster charge voltage within a
specified period after commencement
of charging.
• The end of charging in the – V
charge control system has not been
detected within a specified period.
• Discharging when refreshing did not
end within a specified period.
In such cases, try recharging the
battery pack two or three times. If the
same condition persists, the battery
pack may be defective and should be
replaced.