About the charging reminder 
function
• During use, charging is required 
when the low battery / charge 
status indicator (red) ashes 
(once a second).
• Turning o the power switch 
"
" when the battery has little 
remaining charge, the low battery 
/ charge status indicator will light 
o after 5 seconds.
 
 Indicator display during charging
Charging 
in 
progress
Charging 
complete
Charging 
abnormal
(Flashing in red 
twice a second)
(
Lights on 
 
Lights o 
 
)
(
Flashing 
 
)
 How to check if charging is completed
• After charging is completed, if you disconnect the 
power plug and then plug in the power plug again 
to charge, 
 (the low battery / charge status 
indicator) lights on and then lights o after about 5 
seconds.
2
For safety and energy saving, 
disconnect the power plug after 
charging is completed.
• 
Disconnect the appliance plug from the charging 
socket, and then close the charging socket cover.
• To keep charging the battery will not aect battery 
performance.
 Operating time after a full charge  
approx. 10 minutes* 
(When the water pressure level is set to 4)
*  It varies with the ambient temperature and usage 
conditions.
• Charging is completed after approx. 1 hour. 
(The charging time may vary with the remaining 
battery capacity.)
Notes
• The charging time may dier when the appliance is 
used for the rst time, or if it has not been used for 
more than 6 months.  
In addition, 
 (the low battery / charge status indicator) 
may not light on in the rst several minutes of charging, 
but it will light on as the charging proceeds. 
• The recommended ambient temperature for charging 
is 10 °C - 35 °C. It may take longer to charge, or 
 
will ash rapidly and the battery may fail to charge 
properly in extremely high or low temperatures.
Low battery 
(once a 
second)
(Flashing      )
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PB021640 - EW-DJ31 ������_(01EN)_06-22-22.indd   10 2022/6/22   11:50:39