Supply Battery Charging Process - Calira EVS 17/16-DS/IU Mode D'emploi

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Supply battery charging process (battery 2)
The power supply has electronic protection against polarity inversion. The
charging current is only released once the battery is correctly connected and a
minimum voltage of 1.5 V is applied. During the charging process, the battery
voltage is constantly being monitored through the measuring cable B+. The
charging process follows the characteristic charging curve, with minimal en-
ergy loss (see Technical data section fig. 5 for charging characteristic curve)
Main charging phase
(all voltage values with respect to a battery temperature of 20 °C)
Charging with maximum constant charging current until the battery reaches
14.4 volts. If the charging current drops below 90 % of the rated current during
this phase due to the internal resistance of the battery and cable resistance, the
post charging phase is started.
Post charging phase
(all voltage values with respect to a battery temperature of 20 °C)
The charging voltage is kept constant at 14.4 volts for ten or four hours for
AGM / gel batteries and liquid electrolyte batteries, respectively. After this
time, the device switches to the charge phase. If during this phase the current
rises above 90 % of the rated current while the battery voltage drops below
13.2 volts for a period of 15 minutes for liquid electrolyte batteries, or for more
than two hours for AGM / gel batteries, then the device switches back to the
main charging phase.
Holding charge phase
(all voltage values with respect to a battery temperature of 20 °C)
The charging voltage is set to 13.8 volts. At the same time, the charging current
drops to the value necessary for the equalising charge of the battery. If the
charging current rises to its rated value due to a consumer and the battery volt-
age remains below 13.2 volt for at least two minutes, then the device switches
back to the main charging phase.
Parallel operation
If during the post charging or holding charge phase, current is consumed, it is
recharged immediately.
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