SEDEMAC
TM
Format No: SED-OHA-QF-06, Rev 01
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Page 8 of 19
Battery Life depends on the battery charging method. To ensure long battery life,
Three-Stage Charging
method is used. This method is described in the above charging characteristics graph.
•
Constant Current (CC) Stage
– When the battery terminal voltage falls below a pre-defined
threshold value, the charging current is constant. In this stage, the voltage rises at constant
current to reach the threshold value.
•
Constant Voltage (CV) Stage
– Once the battery terminal voltage reaches the pre-defined
threshold value, charging current starts to drop at constant voltage. The current drops to a pre-
defined threshold value.
•
Float Charge Stage
– In this stage, the battery terminal voltage needs to be constant at optimum
value. To achieve this, the battery is charged continuously. The float charge thus compensates
any loss caused by self-discharge and keeps the battery fully charged.
3
Modes of Operation
As per the amount of charging current consumed by battery the charger output is operated in different
modes. There are three modes of operations.
•
Auto boost mode
: When the charging current is greater than certain value (2A for CB1210 and
1A for CB1205), the charger’s output voltage is maintained at 13.7V.
•
Float mode
: When the charging current is less than certain value (2A for CB1210 and 1A for
CB1205), the charger’s output voltage is maintained at 13.2V.
•
Manual boost mode
: The charger’s output voltage is 14.4V and is independent of the amount
of current drawn (internally limited i.e. 10A for CB1210 and 5A for CB1205) by the battery.
4
Installation
4.1
Pin Terminal Description
Figure 2: Pin terminals of CB12XX
4.2
Connection Procedure
•
Connect terminals L, N and E to AC mains (110V – 290V) using 0.75 mm2 multi strand copper
wire.
•
Connect BAT+ and BAT- to positive and negative terminals of battery respectively using 2.5
