Publicité
No.
Component
4
Temperature sensor (common ground point of the batteries)
5
LIN bus communication
6
Not connected
Battery charging function
Lead acid, AGM and GEL batteries
1: Analysis phase
The battery is deeply discharged (<10 %). The battery charge is analyzed with increasing charging current.
The corresponding LED indicator of the battery that is charged isflashes fast yellow.
2: I phase (Constant current phase)
At the beginning of the charging process, the empty battery is constantly charged with the maximum charging cur-
rent (100 %). The charging current decreases when the battery has reached a state of charge of 75 %. Batteries with
low voltage are charged with reduced current until the battery voltage exceeds 9 V. The duration of the I phase de-
pends on the state of the battery, the connected load and the state of charge. For safety reasons the I phase is termi-
nated after a maximum of 26 h (in case of battery cell defects or similar).
The corresponding LED blinks yellow.
3: U0 phase (Constant voltage phase)
The U0 phase starts when the battery reaches 15 V. The charging current is reduced. During the U0 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.
The corresponding LED flashes slow yellow.
EN
13
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