EN
3, 4: I phase (Constant current phase – Bulk)
At the beginning of the charging process, the empty battery is constantly charged with half of the the maximum
charging current (50
%). The charging current increases to 100
% after 1
min. Deeply discharged lead batteries are
charged with reduced charging current until the battery voltage exceeds 8
V. The duration of the I phase depends
on the state of the battery, the load from the consumers and the state of charge. For safety reasons the I phase is ter-
minated after a maximum of 15
h (in case of battery cell defects or similar).
5: U1 phase (Constant voltage phase – Absorption)
The U1 phase starts when the battery is fully loaded. The charging current is reduced. During the U1 phase, the bat-
tery voltage is kept constant at a high level. The duration of the U1 phase depends on the battery type and the depth
of discharge.
6: Desulfation phase
A constant current will be delivered, allowing the battery voltage to rise independently to the maximum value. The
desulfation phase is not used for LiFePO4 batteries.
7: U2 phase (Trickle charging – Float)
The U2 phase serves to maintain the battery capacity (100
%). The U2 phase runs at lowered charging voltage and
variable current. If DC loads are connected, they are powered by the device. Only if the power required exceeds the
capacity of the device, this surplus power is provided by the battery. The battery then is discharged until the device
re-enters the I phase and charges the battery.The U2 phase is limited to between 24 and 48 h depending on the bat-
tery type.
8 Installation
Before installation
Observe the following instructions when selecting an installation location:
• Ensure that the mounting surface is solid and level.
• Choose an well ventilated installation location to avoid overheating.
• Observe a distance of 10
cm to the ventilation openings of the cooling fan.
Choose a suitable installation location to connect the power cables to the battery.
Mounting the charger
NOTICE! Damage hazard
Before drilling any holes, ensure that no electrical cables or other parts of the vehicle can be damaged by
drilling, sawing and filing.
1.
Ensure that the vehicle's engine and the battery chargers are switched off.
2. Set the switch to the
OFF
position.
3. Screw the charger to the mounting surface.
14
Содержание Dometic PSB12-40
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