Dometic NDS L-20 Instructions De Montage Et De Sécurité page 22

EN
Discharge current at 20 °C
100 A
125 A
150 A
175 A
200 A
Fig.  on page 9
When the battery is discharged the internal battery management system (BMS) triggers an alarm. There are two ways
to resolve the issue:
Connect an external battery charger.
Press the green icon inside the house battery icon
alternator shortly.
The control unit has an internal sensor that constantly monitors the ambient temperature. When the ambient temper-
ature is outside the 0 °C ... 45 °C range, the system triggers an alarm:
The alarm disappears when the ambient temperature returns to the normal range.
Charging
When charging the battery with an external charger, the following guidelines should be observed:
• It is recommended to use chargers intended for charging lithium (LiFePO4) batteries. Other type of charger
will reduce battery life.
• The charger must not perform any desulfation action.
• When using a configurable charger, set the constant current/constant voltage (CC/CV) option with the follow-
ing values:
• Set the end of charge voltage to 14.4 V.
• Set the recommended maximum charging current for the battery.
• The maximum charging voltage should not exceed 14.5 V.
When the battery is charged by the alternator, the process is automatically managed by the control unit.
13 Cleaning and maintenance
The batteries are maintenance-free.
Occasionally clean the product with a damp cloth.
14 Storing
Before storing fully charge the battery with a recommended battery charger for 1 – 2 days.
When the battery is not in use, ensure that the battery voltage does not drop below 12.8 V.
20
Maximum discharge time
3L-100B
55 min
25 min
5 min
2 min
30 s
. The control unit will connect the battery to the vehicle
3L-150-P
90 min
70 min
25 min
10 min
30 s
Fig.  on page 9