Panasonic MC-SB33J Instruction Manual page 7

■  H ow to read the battery status indicator lamp (blue)
To help make the battery last longer
● 
W hen not using for one month or more, store it fully charged and be sure to charge once a year at the least.
(If the battery is stored without any residual power, it might no longer be able to be charged, or the battery's
performance or lifespan might be reduced)
●
When the stick cleaner stops operating during vacuuming due to a depleted battery, operation may be resumed for
a short time by pressing the operation switch again. However, do not operate in this way repeatedly. Doing so
shortens the battery service life.
●
Be sure to charge the battery in a place with room temperature between 5 ºC and 35 ºC. The battery cannot be
charged correctly in a place with low room temperature, or high temperature such as under direct sunlight. The
operating time may become shorter, or the charging time may become longer.
Request
●
When the battery status indicator lamp (blue) does not light up, or when it immediately goes out, unplug the charging adapter
plug from the main unit, and then plug it in again.
●
When using it for the first time, if it has not been used for 6 months or longer, since the battery might be over-discharged,
its usage time may be short, so be sure to charge it before using it.
●
If radio and TV are disturbed by electrical interference, then move them away from the charging adapter by 1 m or more.
Note
●
The main unit and charging adapter become warm during charging, but this is normal.
●
The operating time varies depending on the battery temperature and service conditions.
●
The charging adapter consumes about 0.3 W of power even when it is not connected to the main unit.
●
The charging adapter may make some noise, but this is normal.
●
The stick cleaner cannot be used during charging. To use, unplug the charging adapter from the main unit.
Pulsating (blue)
It is charging
The battery temperature changes depending on the usage
conditions such as the ambient temperatures and usage times, etc.
If the battery temperature is high, then it might take longer
to charge it because it automatically waits until it reaches a
temperature suitable for charging.
(The maximum is about 5 hours)
Goes out
Charging is completed
It goes out when charging is completed.
● 
T here is an abnormality when it quickly flashes (about 0.3
seconds intervals).
Refer to "Troubleshooting" (P. 15).
7