3.3 Starting the charging process
After connecting the charger to the mains, the standby symbol, an empty battery
symbol and the currently measured battery voltage appear on the display.
the MODE (7) key to select the suitable
charging program for the battery and start the
The charger automatically detects the type of battery connected (6 V or 12 V
There is only one charging program for 6 V batteries.
For 12 V batteries the MODE key allows selection from the programs
Automatic detection of battery
As soon as the battery charger has been connected to the mains, the green mains light
(13) lights up on the charger.
The charger recognizes the battery based on the following criteria:
If the battery voltage is lower than 3.8 V or higher than 15 V, the battery is not
suitable or defective. The error message "Err" appears for 3 seconds on the display
before returning to the standby mode.
6 V battery
If the battery voltage is between 3.8 and 7.3 V,
the battery is identified as a 6 V battery. By pres-
sing the MODE key (7) the 6V charging program is
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