Njoy Balder Series User Manual page 34

Step 6
Press ENTER to jump to the
number of batteries (starts
blinking). As the battery number
can be changed only when the
charger is active and you don't
know the status of the charger,
press ENTER to jump to the
next parameter, charger status
(CHG). Now CHG will blink, and
at the top of the display instead
of 18 (Menu#) will be shown the
status of the charger (ON / OF).
By pressing UP / DOWN keys
change the CHG parameter to
ON and press ENTER
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