Operating Instructions Operator and control panel LT 45X
8
Date: 29.05.2020
9310330 BA / EN
3.5 Checking the battery voltage
3.5.1 Leisure area battery
"
Touch the sensor for Check leisure area battery voltage.
The voltage of the leisure area battery is displayed:
F
All LEDs light up: Battery charged sufficiently
F
Yellow and red LEDs light up: Battery partially discharged (below
12.4V)
F
Only red LEDs light up: Battery flat (below 11.5V)
The following table shows the correct interpretation of the voltage of the lei-
sure area battery displayed on the scale.
These values apply to actual operation, not off-load voltage.
Battery voltage
Battery operation
Mobile operation
Mains operation
Lower than 11.5V
Risk of total
discharge
When consumers
are switched off:
Battery flat
The alternator is
not charging the
battery
No charging by the
EBL ... power
supply
discharge
When many
consumers are
switched on:
possible battery
overload
12V power supply
overloaded
12V power supply
overloaded
12,2V to 12.7V
Normal range
No charging by the
alternator
1)
No charging by the
EBL ... power
supply
1)
12V power supply
overloaded
1)
12V power supply
overloaded
1)
13,5V
Only occurs during
charging (only
when there is a
solar regulator) or
momentarily after
charging
Battery is charged
Battery is charged
1)
If the voltage does not exceed this range for several hours.
Y
ATTENTION!
Total discharge results in damage to the leisure area battery:
F
A low battery charge, indicated by low voltage, must be prevented.
F
Switch off some consumers in the event of overloaded power supply.
F
Prior to taking the vehicle out of service, ensure that no inactive con-
sumers are still connected.
Measuring the off-load voltage is a simple and effective method of checking
the condition of the battery. Off-load voltage is the voltage of the charged
battery in a passive state, with no current being supplied or drawn.
Take the measurement several hours after the last charging. In the mean-
time, no significant load should be placed on the battery, meaning no current
should be drawn from it. There is a risk of total discharge if the off-load vol-
tage of the battery is 12.2V or lower.
Off-load voltage
