Kärcher BC 4 V Manual page 20

The charger shows the charging state of the battery pack via an LED display.
There are two types of display:
1 The charging state of the battery pack when inserted (remaining capacity).
2 The charging progress while charging.
Note
The Duo quick charger charges in parallel, which means that different charging state and charging progress dis-
plays are possible for each of the two charging bays.
Display of the charging state when inserting the battery pack into the charger
When inserting the battery pack into the charger, the current charging state (remaining capacity of the battery pack)
is displayed for approx. 3 seconds.
Illustration C
Display of the charging progress while charging the battery pack
The charging progress is displayed when the charging process starts.
Flashing elements of the display indicate charging, permanently lit elements indicate that a charging progress point
has been reached (40%/70%/100%).
Illustration D
When the indicator lights up continuously, the battery pack is fully charged.
Note
The display goes out automatically after one hour after a full charge in order to save energy.
Note
If the entire display flashes quickly, an error was detected while charging (see chapter "Help with malfunctions").
20
The LED display of the charger
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